harley hesitates when accelerating. If you can accelerate smoothly at small throttle opening but hesitate on sudden acceleration then you probably have a carb related problem. Then, when it's at an idling speed, take note of the RPMs in your car. But… when Harleys are sold, they emit 80 decibels, which is already. The engine runs on 90 percent nitromethane, which packs about seven. When oil is too low, the oil pump might not always be able to draw oil in, leading to gaps in lubrication where the extra heat will burn and break up whatever oil did remain, accelerating towards eventual failure. Peter lets go of his hand before grabbing his book off the wall. Advertisement The Harley-Davidson Motorcycles Channel includes histories, photos and specs. it is located in the gearcase (cam) cover on the right side of the engine, behind a round HD medallion riveted to the case. Pioneer 700 transmission slip. 9L Cummins Turbo Diesel with 170K miles. Highlight the zero percent column from 2,000 rpm to redline and enter in values from -40 to -50. View Harley Piercy’s profile on LinkedIn, the world’s largest professional community. Discussion Starter · #1 · Jan 30, 2019. If possible quick each of the exhaust manifolds with your bare hands and find the one that's not warm. Harley Davidson Touring: No Throttle Response. it hesitates on acceleration and if i step on the gas too hard, it. Harley Rep tells me I am the only one. therealmp said: I own a 2021 CRV Hybrid, I have roughly 6k miles on it. Hi, my 500 SL, 1990 model has a misfire at low RPM when hot. Hesitation/bog at 3000 rpmno longer able to pass on. If a backfire (lean condition) is experienced when accelerating, this also calls for a larger pump-nozzle size. The idle circuits in a GL1000 are ridiculously small, so slight problems are greatly magnified. The backfire only occurs under heavy throttle in park and when it is under load and you try and go WOT. I have a '94 vulcan with about 25K miles. Interlude "Secrets have a cost" 11. To test the main jet, do a roll-on from 50-mph to 70-mph in 3rd gear. I guess it is thinking about 2006 Ford F-150 FX4 SuperCrew Styleside 4WD-. BlueDevil Pro on September 19, 2015 at 10:36 am. The spark plugs may be dirty or worn. Turned into a mis-fire when cold only. a 1977 Harley Davidson DE, and a 2005 E-Z-Go. An inexpensive carburetor-rebuild kit provides everything you'll need. (WMC) - A federal lawsuit filed against Shelby County Environmental court claims the court illegally forced two homeowners out of their own homes that they’d live in for decades. 6k with ABS, cruise control, and the security system as part of the package. At Reel Brothers Harley-Davidson we host a large selection of used motorcycles in the Madison area. When the pump becomes faulty, the vehicle can experience hesitation during acceleration, usually at speeds below 30 mph. Jump to Latest Follow 1 - 6 of 6 Posts. Acceleration Ecoboost On F150 Hesitation 2014. Waaay less than any HD I've ridden. This USED 2018 Harley-Davidson ® Heritage Classic 114 : FLHCS for sale near Wichita, KS Twisted Cherry Premier with a 114 ci engine and 6-Speed transmission is for sale at Twister City Harley-Davidson located in Wichita, Kansas. Used 2018 Harley-Davidson Softail Heritage Classic Motorcycle For Sale In St. where they are used as a direct replacement for SU or ZS carbs. 2021 CRV Hybrid Acceleration Lag. This will make you pull your hair out. Search: 2005 Polaris Sportsman 500 Dies When Accelerating. The car will hesitate from a stop, cold or hot. Harley stops too, the most amazed look of awe on his face as he looks at Peter. This problem is typical for the Ford F-150 with a 5. Clean and reseal DISA, TB, ICV, TB. I stopped accelerating due to wind, but I'm sure it would have went past 120mph with the amount of throttle I had left. with no lugging or hesitation. The Chevrolet Cruze is one of Chevrolet's premier compact cars. Apart from the fact that it has no weather protection, it breaks traction easily, and then is not that fun to clean. That's stronger than the comparable V-twins but not as fast as the 600 sporterswhich fetch about a grand more at the cash register than the Nighthawk. When everything is working properly, your car's engine gets a perfect ratio of air and fuel which makes the car run smoothly and gives an optimum performance. First, let's pinpoint exactly what's going on. The newcomer shares most of the. Search: Backfire Through Carb On Acceleration. If your car acts like it’s about to stall when you try to accelerate from a stop, you may need to have your pump inspected. There's a big risk of a petrol fire, but the solution is still not clear. And this is the other bit of info they give. When I first got the M5, I was experiencing all the weird hesitations between shifting and "searching" for gears. Raise the needle one notch and repeat the test. Dirty, clogged, blocked, leaking or generally faulty fuel injectors have the following symptoms: Engine stutter, hesitation, stumbling - without the proper air/fuel mixture, the combustion inside the cylinders is impeded. Harley-Davidson swing-arms (since 1952) use Timken bearings, which control both radial and end thrust but are larger, heavier and more expensive. About Backfire On Acceleration Carb Through. For the best in motorcycle apparel, visit Rugged Rock Harley-Davidson®, the premier Harley-Davidson® dealer in Mt. To summarize, the solutions for a lazy / slow return to idle (or erratically high idle) are: Eliminate vacuum leaks. Why Is My Motorcycle Backfiring? 6 Reasons And How To Fix It. Not however for a v and h air clea. Aftermarket Harley-Davidson Touring Processors & Jet Kits. This bike is powerful enough not to feel weak and cheap enough to inspire new riders to hop on. I'm thinking carb too but don't know enough to know what to adjust. Good comprehensive article and not only for Harley owners. It basically states that the laws of physics are the same for all non-accelerating observers. Super High Conductive Coil and Super High Di-electric Performance Epoxy, 5 Years Warranty. Harley Davidson Touring: Why Won't My Bike Start? Bikes are simple when compared to modern cars, but not as simple as they once were. If you have questions about the decoration, do not hesitate, they have knowledgeable sales staff and technicians with many years of experience. Gone is the horrible feeling upon entering corners, where the old Road King used to waddle and hesitate. Went from a 1200L to the DYNA FXD. Engine Hesitation When Accelerating After a High Speed Deceleration You may find it desirable to increase the number of anti-siphon valves (part# BN34/107), If you ride very fast and find that you have a noticeable stumble when reopening the throttle after a long, high speed deceleration. Please help need transportation. "Wait! Nat!" he's yelling, but Natasha is already out of the building and flying through the air, holding tight to the web, swinging straight past the opposite building. Post by nuck » Mon Oct 14, 2013 7:45 pm. They say they can't reproduce the problem. Dirty fuel injectors may cause the engine to run lean which will in turn, cause hesitation when accelerating. Replace the vacuum line at the fuel regulator (at the fuel filter) as well. Inclement weather like snow, ice, storms, and rain all account for adverse conditions when driving becomes more difficult. Start by checking your transmission fluid level and condition on the dipstick. car hesitates when accelerating. By Weston Chadwick - March 16, 2016. If your VIN plate and owners’ manual don’t list your GVWR, you can ask your dealer, or call the manufacturer’s toll free customer service line. ALL-PURPOSE MOTORCYCLES very rarely succeed in fully meeting the manufacturer’s intent. Its very easy to get as a matter of fact. for the quarter mile* with a trap speed of 93. Even though it is a 2-cylinder motor, the acceleration and performance on offer are deceptive. what does a car sound like when spark plugs are bad?. christ hospital er tech jobs near haarlem; putin's wife and daughters; cleco fasteners steel; industrials sector outlook 2022; chris stapleton concerts. Also, there have been a couple of hesitations upon normal acceleration at a stoplight. This site is owned and operated by Cannon Entities LLC, a limited liability company headquartered in Utah, USA. Soon we'll have a step by step instruction on how to use a Power Commander 3 USB on a. See the complete profile on LinkedIn and discover Harley’s. Readjust the idle speed to the correct level. About Backfire Through Carb On Acceleration. The right sized jets, needle positions, and float settings will ensure there is no fumbling or flat spots from idle all the way to wide open throttle. Before going to rate the impression of bike, let’s dive into it’s full specifications and many more. Were truck sat idling in gear mash on throttle up and down, engine rpm didn't change a. When you accelerate hard, the engine sputters and hesitates for a little while and . A Harley-Davidson motorcycle engine may sputter and hesitate when a crank position sensor (CKP) starts to fail. Clunks, groans and squeaks that only occur during acceleration, deceleration, sudden speed changes or when encountering bumps usually point to loose, worn or deteriorated suspension components. Clean, smooth acceleration happens when all components of the carburetor are clean and tuned properly. 2018 Harley Heritage Classic. Blue-ing of exhaust pipes is a telltale sign of a lean fuel mixture. A failing or failed crankshaft position sensor may cause the check engine light on your dashboard to come on. 98,700 and still no problems 102,000 hesitates occasionally when accelerating but otherwise still great and no other problems 111,000 miles 2nd. Through On Carb Acceleration Backfire. Having hesitation when I bring it up from an idle. One interesting thing I noticed is when it surges after. Ford F150 Whining Noise When Accelerating. When cold, has a hard time staying running with out a lot of manual throttle input. (the idle mixture screw is a fuel screw. The advantage of the shorter 883 gearing is quicker acceleration. The bed side lay down to make it a flat bed. The Chevrolet Cruze is one of Chevrolet’s premier compact cars. At times, there may be a sound emitting from the engine hinting of vibration, however, the more common symptom is a felt vibration. is by testing for ACCELERATION RESPONSE. When I hit the pedal for a little throttle action it jumps and acts as though it is misfiring and stalls somewhat. I recently did a head gasket repair on my 1986 Kawasaki GPZ1000RX and now that everything is back together it starts up fine, idles fine, and revs high without a problem while in neutral, but when I put it into gear and started driving it it'll drive fine when giving it slight throttle, but when I get to the higher revs, or when I open the throttle too quickly it bogs down badly, and starts. Our commitment to providing the best parts at the best prices is topped only by our dedication to providing the very best service to our clients. One of the nice advantages of this system is electronic cruise control, but this design has its disadvantages, too, such as loose connections and broken sensors. Milwaukee have evaluated the established peerage in the adventure-touring sector, examined what those bikes do well, where they could be improved upon, and then looked. It’s possible that your blue exhaust smoke is caused by simply having too much or too little oil. Please visit our support forum for post-purchase support of our products. The J-Body Organization, j-body. The Muscular Dystrophy Association (MDA) announced today the opening of registration for its MDA Summer Camp program, for children ages 8 to 17 living with muscular dystrophy and related. Powered by a 52V Samsung 16Ah battery and 600W motor, you can enjoy …. 28-second run in the quarter-mile at 108. In the second quarter, Polaris said Indian retail sales were down by almost 10%, while in the first. -I felt the hesitation every once in awhile about two weeks ago but not as bad till my 93 mile ride yesterday where it was VERY noticeable. When you accelerate hard, the engine sputters and hesitates for a little while and then suddenly it lurches the car forward. Mode 21 shows you the current throttle position. Delivers peak performance from idle to Wide Open Throttle. Harley-Davidson Motor Company has issued a recall for its entry-level Street 750 and Street 500 motorcycles. You’ve probably heard riders blip their throttle as they downshift while rolling to a stoplight. If I wait long enough (more than 2 hours) it will turn on. Truck has a safe tune from WMS which should not be causing pro. Excellent torque, all the power any body could use. Your transmission is necessary in order for your car to operate correctly, and if you start to hear it make a clunking noise, you have good reason to become concerned. Give us a call at our toll-free Factory Tech Line for any inquiries. 8 to 1 allows the use of gasoline with octane number 92, which helps to save on fuel. Tony Beyer General Manager, Rubber City Harley-Davidson " "Incredible Asset. We hesitate throwing around the "best ever" moniker when it comes to anything, but it fits in the case of this watch. I got terrible gargling and hesitation reducing from 190 to 180. If the engine is flat or will not accelerate, decrease the main jet by. Knock Sensor Problems on GM Vehicles. Acceleration Tbi On 350 Chevy Bogs. Used 2008 Jeep Compass Consumer Reviews. It gets worse if try to hold at that speed. Sounds like the injectors are throwing too much gas in, and possibly your pressures are off. When the white smoke is as a result of transmission fluid, it means that the car engine is likely absorbing excess fluid from the vacuum pipe or hose which is what makes it produce white smoke. Learn to safely accelerate, shift, brake, and turn, along with maneuvers like controlling skids and surmounting obstacles. I found the best results with a colder plug (stock) and just slightly undergapped, I put several small feeler gauges together to get it. When the problem shows up, and you try a hard acceleration, what is the response? Did the issue just show up suddenly, or did it come on little . If your H-D has these symptoms, there are several causes and several easy fixes. For use with 1990-1991* FL/FX Big Twins and 1989-1991 XL models using the early model Harley CV 40. Meaning your car isn’t getting as much gas as it needs to accelerate. Check Engine Light On problem 1. One was to put more miles on car, other was that it is engine and transmission engaging together. If you are experiencing a problem with a grinding noise coming from the front of your vehicle while accelerating then this section is for you. The engine may feel like it's stumbling for a few seconds before regaining pace. If you would like to get a quote on a new 2008 Harley-Davidson Dyna Glide Fat Bob use our Build Your Own tool, or Compare this bike to other Cruiser motorcycles. When this happens and I accelerate I get a jumpy hesitation and then all of a sudden the truck will smooth out. How about making your own Harley-Davidson in your garage? Building a Harley from scratch does sound like a crazy idea but if you decide to go for such a move, we would like to help you with 10 necessary tips. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Steven did a great job on my 2010 Victory Cross Country. This is because the exhaust system has been designed to create a bit of back pressure in order to scavenge more spent exhaust gasses from the combustion chamber. This USED Twisted Cherry 2018 Harley-Davidson Softail Deluxe FLDE Premier with a 107 Cubic Inch engine and 6-Speed transmission is for sale at St Paul Harley-Davidson located in St. You should do this, while watching spark timing and/or knock (KS) sensor input. 3l wire loom,Diesel site coolant filter I had a bucking/hesitation problem. Generally speaking large throttle openings at low engine speeds yeilds the best fuel economy because of the lower pumping losses involved. Tom initially formed E-Branded (Evident’s original name) as a means of providing superior service and spearheading branding initiatives for his music talent clients at Esther Creative Group, the talent …. ’75 and ’77 models use stock Keihin Pilot Air Jets – size #110. I put a PC3 with down loaded map it felt a little better but did not justify cost. For example, 2-cylinder 750cc bikes like the Honda NC750X or the legendary Harley-Davidson 750 twins offer about 50-60 horsepower. Mikuni'sTwin Cam, Big Twin and Sportster / Buell Easy Kits even use Harley's existing manifold, chokecable and air filter. Tags 2300, 3k, acceleration, b18a, bad, crusing, exhaust, harley, hesitates . I first started noticing it, like you, when accelerating at near highway speeds. Snowmobile Throttle With Bogs. I have notice the following problem with the truck. ZJ idles pretty much normal with a hesitation here and there (very subtle and very seldom) in park and neutral, however, when put into drive, reverse, 1, or 2, and just sitting with the brakes applied (like at a stop light) it hesitates very hard like it wants to stall and then when accelerating from a stop the whole car "stutters" for a few. Even the mildest of Harley-Davidson's aftermarket cams (Evo or Twin Cam) do their best work above 3000 rpm. If this isn't the exact Harley-Davidson you're looking for don't hesitate to go back and REVISE YOUR SEARCH. Jump to Latest Follow The truck downshifted and when it hit 3000 rpms it just fumbled and wouldn't continue accelerating. The engine didn't try to stall or feel like it bogged down when I hit the gas, it just doesn't seem to react without a delay. Engine spark knock, similar to pre-ignition, is basically an erratic form of combustion. A: When you see a white smoke from the exhaust while accelerating, it could mean that the problem is either with the transmission fluid or a burning coolant. He is the man that organizes and drives these well-run events, and is an all-around good guy. Replace intake boots and vacuum lines (cheap) and inspect and replace CCV system if necessary. Excessive amounts may mask the spark, causing misfiring and hesitation during acceleration. Right now, the city is a hub of all the latest blockchain solutions and since our company has a strong focus on this technology, from now on, we have a unique opportunity to stay on top of the latest innovations. I can be driving down the road and my truck rides fine. As you’re driving a misfire can cause the engine to lose power infrequently, or a brief hesitation in acceleration when the throttle is pressed. 97 - 08 Harley Davidson 1" Lowered Air Shocks. With that being said, some manufacturers are pushing the spark plug change intervals to 80,000 to 100,000 miles along with some high-performance spark plugs. To get the best power at full throttle / 5k-7k rpm, adjust the needle height, after you have already selected the best main jet. Traction controlcan be fitted to a front-, rear- or all-wheel drive vehicle and the principle is the same no matter which whe. Occassionally, it will bog down and I have to back off. SKU: 1010-0759 Categories: Performance, Performance, Raider, Roadliner / Stratoliner, Yamaha Tags: Free Shipping, K&N Filters. I went and bought a new battery immediately at the Auto Zone and rode for half hour. Robert recommends a replacement jet - size #98. With Mikuni's accelerator pump technology there's no hesitation from idle to WOT. It will literally smother the engine, hurting fuel economy and acceleration. Spray the ignition system with some water, use a spray bottle. Up front, a broad, deeply valenced fender wraps around a chubby 150/80-16 tire. 9-inch wheelbase is the longest in cruising, and the seat is a mere 27. Discussion Starter · #1 · Sep 5, 2008. Low compression inside the carburetor can cause fuel or air to build up and result in letting your motorcycle backfire. Pioneer700xmison said: I purchased a 2015 Pioneer 700 last year and after about 1000km of use I noticed that the transmission was missing when it was cold. Put the choke lever in the closed position (as shown in image2 with red arrow, the lever in the UP position). I had the same problem and it turned out that my converter was almost completely plugged. It's also worth cleaning the throttle body if your spark plugs are fine. Even better, pricing starts at. It's possible that your blue exhaust smoke is caused by simply having too much or too little oil. When you step on the accelerator pedal to get the car or truck moving, the throttle opens causing the TP sensor to increase its voltage signal. The line you choose around a downhill curve should have you entering wide to the outside. Possible reasons why car jerks when accelerating. original owner put V&H pipes on the bike and i am wondering whether the fuel supply should have been adjusted for the pipes. Stopped to put fresh high octane gas in it Rode it home and could feel some sputter/hesitation when accelerating and cruising at a constant . If you have spark plug problems, look for replacements from popular brands such as NGK, DENSO, Motorcraft, Autolite or ACDelco. If the engine just slows a little, the jetting is very close. After riding for a couple hours it will suddenly loose power and backfires and then slowly stall out - sometimes I can keep it running by pumping the throttle but most of the time it just dies. I normally take off before it reaches operating temperature and I do a slow temp rise. I can either add a little throttle, accelerating slowly, a Ducati or Harley twin where you need to tune each cylinder independently). James Gunn successfully rebooted a defunct franchise, and in the process may have laid out a …. Start by checking the spark plugs and either clean or replace them and the housing unit. However, overly worn out bearings tend to make a howling noise as well, when they don’t support the gears correctly. There might be a short hesitation when you press the gas pedal. 4 Most Common Problems with Yamaha Star Venture/Eluder. I have a 1996 Club Car DS with a custom body installed, a 1977 Harley Davidson DE, and a 2005 E-Z-Go. With his 2020 Trail Boss, which he already updated with a cold air intake, he noticed a pretty significant increase in fuel efficiency (16. Controlling the amount of boost in a forced induction engine is critical. The next time I rode was a 5 days later. dealers on HD Street Forum explains the issue affects models built from Jan. 4 cylinder heads have only one camshaft each. Hesitation is a classic symptom of a lean fuel mixture (too much air, not enough fuel) and can be caused by a dirty or misadjusted carburetor, or one with a weak accelerator pump or worn throttle shafts. It will get to about 30 mph no problem, but then immediately begin to loose acceleration and slows way down. If this condition remains undetected, under acceleration with the fuel level below 0. The check engine light is on and is showing a 1215 code, MAF fault. CanaRanger said: I have a 2014 570 Ranger Midsize with 5000kms on it. 2008 Harley-Davidson Dyna Glide Fat Bob pictures, prices, information, and specifications. Acceleration will stop suddenly after getting a small amount of power. The most powerful production engine in Harley-Davidson's history, the Twin Cam 110 is a big-bore variant of the new-standard TC 96 mill. On average, the cost for a Ford F-150 Engine hesitates during acceleration Inspection is $95 with $0 for parts and $95 for labor. replace with a smaller jet and repeat the process until the idle mixture screw is 2 turns out. PERFORMER SERIES THUNDER SERIES AVS CARBURETOR …. I then noticed that if I slowly rolled the throttle, it would eventually and slowly with some hesitation, get above 5-6000. Gently place the crowbar behind the clutch and apply pressure. 7L V8 TPI (1990 and later)" The schematic indicates wire color for each enable wire, but does not have pin numbers. John Ferrell says: April 24, 2017 at 10:39 pm. Discussion Starter · #1 · Jul 20, 2017. The MAF monitors the amount of. Simply plug the chip into your car’s OBD2 port, start the engine, and drive to unleash hidden power! Ultimate Horsepower and Torque Gains. Arctic Cat Wildcat Trail 700 Motorcycles for sale. The six speed seems to be all you would ever need. Let's see what the problem might be. White smoke can either be very light, just like a vapor, or it can be dense and heavy smoke. The issue occurs most generally due the air/fuel mixture is going lean or isn’t being enriched properly. Laura Lemco is an incredible asset to the motorcycle industry, whether establishing a dealerships value, or giving sound business practice advice, her years of industry experience and knowledge are simply among the best out there!" " ". I'm having issues with my 97 Fatboy Evo, when cruising at 1/8-1/4 throttle in any gear and roll-on the throttle, it hesitates/stumbles, . F150 Harley Davidson Idle and Hesitation problems. Your fuel pressure should be somewhere in the neighborhood of 15-18 with TBI. Our Zero S review take a look from a new rider's perspective. My hat goes off to Triumph for making the world's best motorcycle! Again. Harley Sensor Position Crank 2000. A bad mass air flow sensor won’t reliably measure the amount of air coming in through the air filter, resulting in a delay in the fuel delivery during sudden acceleration and a temporary lack of power. 97 Gary Jun 2nd, 2010 at 8:21 pm I don't have the money for new cams or high cost exhausts so I am stuck with screaming eagle air cleaner (ventilator) and kerker slip ons. I noticed at speed below 25MPH - sometime it lost power for a couple seconds, then suddenly kick in (jerking) hard like someone hit me in the rear. Acceleration lag/hesitation in 1st and 2nd. You don't even have to reach a high speed, but going from 0 to wherever in a couple of seconds is a real rush. Engine spark knock happens when, the fuel mixture is subjected to either, too much compression heat or both. However, the final drive differs. Caution: Make sure the fuel is below the maximum gauge level. I wouldn't say the vibration is violent but you can feel it through the seats and body of the car, don't really. I'd like to see a big change in OD like 25% or more. Designed to protect the clutch adjuster mechanism from dirt, water, and particularly juicy airborne arthropods, the clutch cable cover (or "boot") is the accordion-looking piece of rubber that resides. powered by a new twin cam 96 v-twin engine. Davidson Through Harley Backfiring Exhaust. For about the first 7k miles everything has been fine, but in the last week and half or so I have noticed a problem that has me fairly worried. If you let off of the gas coming to a stoplight and it stalls for a second or two and recovers itself, it very well could be a dirty throttle body that is causing the problem. Is this because of the short exhaust. 5-Up TXT 36/48-volt series models. Added the touring seat right away. If I don't let up on the accelerator it will backfire and take off. Hesitation when accelerating from rolling stop. Harley Davidson Twin Cam Engine Problems Solution. Okay this is my suggestion when dealing with GM. This is a dangerous situation, as it will be difficult to drive your vehicle. 4 volts, the power decreases dramatically. The combustion chamber and the exhaust pipes and wiring are all part of a Harley Davidson exhaust system. On Sputters Off Take Harley. My recollection is that moderate (not snail's pace, not gun it) acceleration is likely to produce the best results. Harley Single-Fire Ignition: Dynatek's Dyna 2000 Contributor: Anonymous Harley-Davidson's do not come stock with a single-fire ignition but instead have a dual-fire ignition. Hesitation, tip in surge, engine pinging, no torque converter lockup. When driving in 5th gear in D, DS, and M modes, the car has a slight hesitation when accelerating, particularly in the range of 1600 rpms and up. Immediately let off about 1/8 turn and note the feel of the bike. Search: Harley Starter Grinding Noise. For hours of operation, please see our contact information page. (WMC) - A federal lawsuit filed against Shelby County Environmental court claims the court illegally forced two homeowners out of their own homes that they'd live in for decades. Third, while strange, you might experience the revving of the engine without the gas pedal being pressed. there was a break in a vaccum hose from hyper charger to front carb- replaced. The engine warning light may also come on, and the engine could hesitate when you accelerate. Step 8 - Replace throttle position sensor (diesel) A bad TPS can …. Consider cleaning the air filter or replacing it with an air kit to see if the problem is resolved. On start up and for the 1st 4-5 mins until it gets hot, it revs without any hesitation and. Please use the four digit model year in your subject as prompted. This is the computer that determines the ratio of fuel to air that enters the engin. com Member Today! In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups. The Most Common Causes of Hesitation: Bad throttle position sensor Ignition system problem Fuel system problem Vacuum leak Bad accelerator system (carburetor models). I edited the white background sides off your photo so it appears larger in the feed.