If Hello - from your symptom description, you have a worn out or damaged Constant Velocity joints (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-damaged-cv-joint) on one or both front axles. Low fuel pressure will cause the engine to run very leanly, and therefore it may cause the engine to sputter. 1 Answer Engine V6 is hesitating when accelerating over 40 mph Engine hesitates and almost misses when accelerating over 40 mph. Very common problem on the LS400 specially 1995/1996. We're a forum community dedicated to the Pontiac G6. It did seem to help with the cars overall performance. a sticky valve . Could be a number of things. How bad is it, and does it prevent you from driving the car normally? VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I have done this before and it worked out beautifully. Jeff1104 Its the Bank 1/2 post CAT sensor. Car advice. This may cause a hesitation, loss of power or jerking reaction when this sensor is malfunctioning. Is your question about how to test the oxygen sensor? Codes won't tell me and the mechanics I've been to Wrench Set: http://amzn.to/2kmBaOU5. It is possible for you to mistakenly think your gears are slipping when in fact it is your engine hesitating. BEST Place to SELL 1994 LS400 LEXUS with 166,000+/- miles. This generally will happen at the same speed with consistency as the transmission continues to corrode. Continuing attempts to accelerate can result in severe engine damage. The f-body EGR was designed to work with a low restriction exhaust and thus will typically last longer. I purchased my Torrent October 2014 and it had approx. As the car approaches 40 mph, the RPMs will increase in the engine. 1) Bad Throttle Position Sensor The throttle position sensor monitors the throttle valve's position and then relays this information to the engine control unit. Changed Fuel filter. 3) Throttle Position sensor can play havoc with the ECU if there is a dead spot on it such the ECU gets an erroneous reading at certain pedal positions. Several years ago, having a Olds Intrigue 3.8 L, that smillar jerking effect happened and around this speed, car on top gear. I think Then on the advice of a friend and car enthusiast, I had the transmission serviced at my next oil change. We have a new video every day! If yes, what happens at 40 to 45 mph ( with light throttle) is your car is going into 4th gear. Never any sponsored content, just the truth about everything! I just recently purchased my 00 Focus SE with 96,xxx mi. Check and change the starter relay on the inner fender near the battery. That rules out 2, 3, and 4 of your theory. Doesn't appear to be overheating, and temp gauge seems to be working fine. We took the car to the dealer where we purchased it and they were unable to find anything because there were no codes present. Vacuum leak will affect idle before anything else and certainly not at 40-45 mph and nowhere else. Billy from United States 7 years ago BI Comment Same issue here 17 reports Hi all. Vehicle is a NON ecoboost AWD Customer complaint is hesitation while accelerating. 1. Always check your fluid levels, -then check your car. Recall the primary O2 sensors are to trim (fine tune) the fuel map. This happen with a Pontiac 6000 , 2.8 L. hey guys, same issue here, I have a manual tranny 06 gtp. So if you are handy with a soldering iron and shrink tubing you could adjust the cable harness length to suit. The battery has a battery temperature sensor that can fail if the Check Engine Light comes on, the battery voltage is low, or the RPM curve surges. Here's what you might discoverand what you can do to fix the problem: Dirty air filter. Amazon Version of Fuel Pressure Tester: https://amzn.to/2pDXiDs2. Especially around 45mph. My 2001 Acura TL is starting to hesitate when accelerating, then starts slowing down. Prior to EFI there was no feedback loop on fuel trim (remember those things called carburetors?). wish to see more in the coming days. Sign in or register to get started. Make sure youre putting the correct octane in the vehicle. Ive been lurking this forum for a while and tried to read every forum post related to this problem Im having. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. Half cab. Youll probably need to take it somewhere to have the issue diagnosed. I have a 1996 Saturn SC2. Actually I called it misfire based on the link below which explains that misfire can be caused by one 3 things: 2- the air/fuel mixture is too far out of balance to ignite, http://www.autotap.com/techlibrary/diagnosing_misfires.asp, In my case a random misfire (hesitation) was happening every 4 to 5 seconds and was caused by a bad air/fuel mixture (lean misfire) due to the bad oxygen sensor, This sensor was causing a rough idle too, after changing it, no more hesitation when cruising and idle became much smoother, the link below helped me to test the sensor, http://www.lexls.com/tutorials/EFI/mainoxygensensor.html. Right around 40 in what I believe were the car is shifting into 4th gear or overdrive the car starts to jerk (RPM's do not fluctuate/MPH do) If I give it some gas at this point the jerking stops but may return at higher speeds. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Much appreciated. The '90 and one of the '92's are now off the list. Made with in Silicon Valley. Have no idea why. This giveaway complies with all applicable federal, state, and local laws, rules, and regulations, including U.S. sanctions.15. gas mileage has also tanked. What could be causing this? They're only slightly more than the OEM types, but you can dissassmble and clean them out on the fly in less than four minutes. Once the exhaust is supplying HEAT the sensor will provide good outputs. looked at that yet? Yours is a very difficult problem to diagnose without seeing the live engine data. I have a 2012 traverse. Do Not Sell or Share My Personal Information. Is there any downside to having two gas filters in a fuel system? Fix the admin first, then fixing the website becomes so much easier. Is there an easy way to check for vacuum leaks that you know of? The contact stated while driving approximately 40 mph, the vehicle began to shake and decelerated to 10 mph independently. I've been dealing with this issue since last week. This made the hesitation MUCH better in low gears and speed but it still hesitated around 40-50MPH almost feels like a fluttering or dead-spot in the pedal. 2. Thanks for all your input. Step taken so far. I have a2016 Nissan Sentra my car flutrate sometimes like it wanna kill ,put it on a machine and no codes come up,Can u tell me whats wrong. At this point in time, I'm thinking it could be my It happened to me a couple weeks ago. plugs are OK. It looks like you're new here. Car runs great between 0-40 mph and from about 50 mph on up Are you asking if oil on plugs could cause a bad fuel pump? In any case, you will likely find the problem relates to an imbalance in fuel and air mixing in the chamber. If still having issue after that let me know. 3. fuel filters, etc. After. My car has 33000 miles. In my case, that was a defective wire (cracked or burned..) A cracked or broken sparkplug would make run the engine very rough right away at any gear. If it happens once, it is likely to happen again, and the car should be serviced before the transmission is damaged further by wear and tear. Turns out the spark plugs and wires were just worn. I can barely discern a vibration in the vehicle, but if I have my foot just over the accelerator pedal, I can feel it vibrate in unison with the noise. Come join the discussion on performance modifications, accessories, troubleshooting, maintenance and more! It ran They have rewired the sparkplugs (after a major tune-up at another place), put in a fuel injector and . If you aren't going to deal with the tank immediately start carrying around fuel filters to swap out as they clog. Sometimes simply cleaning the MAF may do the trick, too. Can you describe the hesitation in a bit more detail? Hesitation on acceleration. They are as follows: Bank 1 Sensor 1 - Driver's side (left front) on exhaust header. Scottys Top DIY Tools:1. The car hesitate when i step on the gas. Car hesitation. This will cause hesitation as you accelerate. There are a lot of things that can cause this. The oxygen sensor is responsible for calculating the amount of oxygen that was not burned in the exhaust system. Can you narrow down when it hesitates? If i slowly and accelerate and do not push the pedal with force and try to keep the speed constant around 35 mph and then slowly accelerate from that speed it almost hesitates, feels extremely sluggish.. Those cars ran fine as well. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. It does it most often when you are barely on the gas at 45 to 50 MPH and then you press the gas to accelerate. but wouldnt that throw a code? Car hesitation whi Shop the Scotty. If I start below those RPMs or above there it shifts and goes fine, no bogging down either. Thanks for the thoughts and suggestions. The car may be pulling timing for some reason when its hot. Misfiring might be occuring. The transmission sometimes can prevent the car from maintaining proper speed. cant maintain a speed over 50 . Take off exhaust manifold and clean the So, when next you notice the car hesitates and jerks when accelerating, it may be due to a dirty air filter. Itd be best to bring your car to a shop you trust for a diagnosis. Misfires can be related to wrong plugs being used. Had one of my U joints replaced. I did not mean to ask you to start searching for a vac leak. Many times, while driving the Drive (D) indicator & Reverse (R) indicator appear on the dashboard at thesame time, after sometimes it returns normal. ALL have result in a CEL but NONE exhibited any physical indication of fault. factor. If it's less than 2k rpm, then you have the old programming, and should get the upgrade flash to the transmission (by a different dealership if need be). Best bet would be to take it to a local shop to see what they would charge you to replace the plugs. If it is just a bit of dirt or some moisture, then the best thing to . Btw jeep likes NGK ZFR6F-11G spark plugs only. Either the engine is cool or hot. If you let your fuel injectors continue to be dirty, then it will impact how much fuel gets injected into the chamber. Hesitation/Stuttering While Driving Between 40-50 MPH vicjrblue Member Posts: 1 January 2016 edited January 2016 I purchased my Torrent October 2014 and it had approx. I have the same thing on mine but hasnt changed with all new coils and plugs. What could be the cause? I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor. Upload or insert images from URL. Immediately after entering 4th, at that speed, the engine is experiencing a high load/high torque/low rpm condition and this is also where the car is most likely to exhibit a performance problem. No redline, just a steady acceleration. CLEARED CODES AND CAR DRIVES FINE. This can be a chronic problem, or it can only last a few seconds before the transmission works properly again. Unfortunately Im still at a loss for answers and I am darn close to rolling her down the quarry lol. similar to what you describe) he didn't even andbeyond, Nov 16, 2017 #20. could be the crank and/or cam sensor(s). You are using an out of date browser. At exactly 40 mph. By Either there will be too much air or fuel, or too little. 2023 CarGurus, Inc., All Rights Reserved. It never stalled and otherwise drove great. Will try and let Used to happen to me after wheeling when I would shake all the rust particles from the bottom of the tank. If you're driving 40 miles per hour and think the transmission might be going bad, check for these several symptoms. If you are still having trouble, From what you've described, it sounds like you have a head gasket leaking into the engine cylinder and then out of the exhaust. Faulty Transmission Control Module If I should need to change out the metal fuel lines, does anyone know the correct size for rubber tubing to connect from the gas tank forward? When was the last time the spark plugs were changed? Shudder or Vibration While Driving at Speeds Between 35 and 40 MPH on Acura MDX Problem Description A shudder or vibration may develop while driving at speeds between 35 and 40 MPH. This could be accompanied by a hesitation in the motor when driving. Jump to Latest Follow Follow At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. Sounds like your car is entering limp home mode. Actually you can probably get your purchase price back very easily w/o reselling. Thats about the speed when a bad fuel pump gives up. then fill with ethanol free fuel. CarGurus has 44 nationwide S-Series listings starting at $3,688. 1D10CRACY 60.2K subscribers Subscribe 3.1K 583K views 5 years ago My 1999 Lincoln Town Car developed. When the air/fuel mixture in your engine is too rich, a blockage can develop in the catalytic converter over time which disrupts the airflow of the exhaust system. If you click them and The winners full name and address will only be used to mail the giveaway prize to the winner and nothing else. don't seem to think the crank/cam sensors could be the culprit. Saturn SL with 169450 miles.. about 50 miles ago she started stuttering from front to back while in 4th gear going about 35 mph also in 5th gear going 70mph. year amongst other things. My car is a "beater" but now the problem has become a challenge. Plugs are burning cocoa brown/tan. Cheap Scan Tool: https://amzn.to/2D8Tvae3. My next step will probably be to install a new fuel Hesitation will be the beginning of your troubles so look at it as a warning sign if you notice your engine hesitate when you accelerate from a stop. Just for giggles try putting in a water-remover fuel additive to the gas tank and see if there is any difference. When this happens, the traffic lights indicator works abnomally (blink faster). If you have not cleaned your fuel injectors for a long time, then theyre probably corroded with carbon deposits or other debris. but especially when "something" is wrong. During the week in the Outer Banks, I did notice one time that there was a slight hesitation and sputter during one of our evenings out. I was then told my throttle body needed to change and so I bought a new one. Ignition, fuel system, vacuum, or torque converter issue would be my guess, but any of the above will set a code! How many miles? Saturn SL with 169450 miles.. about 50 miles ago she started stuttering from front to back while in 4th gear going about 35 mph also in 5th gear going 70mph. This should be checked out by a professional mechanic immediately to avoid being stranded or causing further damage. Hello there, a variety of faults that can cause your 2001 Honda Civic to overheat (https://www.yourmechanic.com/article/can-a-car-battery-overheat-in-hot-weather). What causes a car to hesitate when you accelerate? Thank Heavens for my wonderful mechanic who found and fixed this! 03-30-2004, 11:11 AM. If so, I can post the diagnostic procedures from the '92 Repair Manual. I had the same problem and it was the gas tank. Lol old_mopar_guy April 29, 2019, 10:52pm #9 The only thing your 09 Nissan has in common with a 99 Mercury is that they both have 4 wheels. Is it just on cold start, certain ambient temperatures, etc? It did great going down there and throughout the week that we stayed. Any suggestions? I'm still thinking it could be the fuel pump or the crank and/or cam sensor. Common issues include: Lexus # 89465-50120 / Denso OEM # 234-4138 / Denso Universal # 234-4209 / Bosch OEM # 13441 / Bosch Universal # 15733, Bank 1 Sensor 2 - Driver's side (rear) near catalytic converter. When this is not working properly, you may also notice a strong smell of fuel. Affiliate. It makes a shooting sound (pow) many tyms. My car was jerking as well. My front end shakes when I accelerate at low and high speeds 2003 Pontiac Grand Prixh, A Buyers Guide to the 2012 Mercedes-Benz ML350 BlueTec, A Buyers Guide to the 2011 Mercedes-Benz ML450 Hybrid, How to Replace a Car Battery Temperature Sensor.
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