Im not sure. Step taken so far. 2004 Honda Civic - WHY DOES CAR HESITATE AROUND 40MPH? - RepairPal.com Unfortunately Im still at a loss for answers and I am darn close to rolling her down the quarry lol. around 40 mph. I'll see how the car runs as the weather gets warmer here in Chicago. Well, you gotta first check the basics. If there is a problem with your ignition system, such as with your spark plugs, rotor, or wires, then your engine will lose power at inconsistent times. I suspect you cleaned, as anyone would, the MAF/IAT sensors at the same time, more likely the actual "misfire" cause, as installing the O2 sensor. I had not tightened a clamp enough around the filter/pump area after replacing my entire fuel system. You can post now and register later. When I bought it they said Itd be best to bring your car to a shop you trust for a diagnosis. The only way I know to test those is to heat the element in our oxygen rich atmosphere and test for the output voltage to be in the proper range. Do you think its a sensor issue? mechanics. Hi all. Used to happen to me after wheeling when I would shake all the rust particles from the bottom of the tank. The car will jerk real bad when driving at a steady speed and also when slightly accelerating. Sometimes simply cleaning the MAF may do the trick, too. If the MAP sensor is not working, the engine control unit wont know how much fuel to inject in order to accommodate the given engine load. By The most honest and funniest car channel on YouTube. My car jerks slightly when I'm at a steady speed or tryin - YourMechanic Even if you purchased it online, you might be able to get a store credit at a local retailer like Autozone, Advance, Pep boys, O'Reilly's, etc. Made with in Silicon Valley. The fan motor itself is also a possible and common failure point. If it's been sittting, you may have condensation and/or rust in the tank making it's way through the system. The oxygen sensor is responsible for calculating the amount of oxygen that was not burned in the exhaust system. If that doesnt do the trick, you may need to have them professionally cleaned or simply replaced with new fuel injectors. 4. you posted. While driving the vehicle at constant speed (from 20-40 MPH) the vehicle begins to jerk upon acceleration. my car hasitate at 3000 rpm rpm fluctuate but at 2000 rpm it looks fine. Hesitation. Please refer to CarGurus Terms of Use. 2. I purchased my Torrent October 2014 and it had approx. I tried replacing the MAF and MAP sensors first. Fuel pump / pressure , cat is plugged , egr valve : All 4 are the same sensor its just the cable lengths which are different. I feel it if I accelerate quick or cruise, and feel it more when I coast. Here's an excerpt on the various sensor cross referencing (of part numbers): There are four O2 sensors in the LS430. Plugs are burning cocoa brown/tan. I was then told my throttle body needed to change and so I bought a new one. Then on the advice of a friend and car enthusiast, I had the transmission serviced at my next oil change. Very common problem on the LS400 specially 1995/1996. Good work ehabmarco. I have a 2014 vw tiguan and it seems to be hesitating only when its hot outside (85+ degrees) it will trip a check engine lean code but if I clear it and drive during cooler temperatures it drives perfect. Davidson has written articles for various websites. I dont know, youre probably going to have to have a technician take a look at it and see if there are any other problems. Battery Pack Car Jump Starter: http://amzn.to/2nrc6qRAmazon Version of Fuel Pressure Tester: https://amzn.to/2pDXiDsMechanic Monday Official Rules:1. I have a 1978 FJ40 which I've owned since 2007. 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. My car hesitates some times around 35 to 40 mph and is more - Fixya moving you to the technical section, should get more views there. The '90 and one of the '92's are now off the list. Alpine s10" dual 2 ohm voice coil Subs in a ported box JBL GTO-14001 1500w amplifier, tint, stock everything else! I have changed the spark plugs. Hey guys, went out and purchased a clear filter like Rudi posted up. This is because something is wrong within the engine bay - what could that be? It is really noticable when pulling out and gradually working up to around 40MPH. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Mailing Address:9169 W State Street, Suite 2867Boise, ID 83714. I have to shut off the engine in neutral and start again for it to move for a while and the same cycle happens again. The car has started jerking around 40-50 mph my wife said the a few weeks ago. wish to see you more in the coming days. I noticed that during acceleration onto the freeway or on inclines, the vehicle would start to hestitate or stutter as I referred to it. It ran What seems to make the problem better or worse? 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. Here's what you might discoverand what you can do to fix the problem: Dirty air filter. Ecu not sending signal to spark plug harness? Entrants that use computers, programs, or any other means of cheating by adding additional comments through more than one account, will be ineligible to win the giveaway.13. 4k Camera: https://amzn.to/2HkjavH4. I'm thinking it How to fix engine hesitation during acceleration. There are several reasons you might be getting backfires and hesitation. the heater is only used during initial engine start up. We have a 2008 G6 with a V6 engine. Quick edit: I confirmed the TPS was getting proper power voltage. but especially when "something" is wrong. Observe where they sit both when its hot and cold outside. ALREADY CLEANED INJECTORS AND CHANGED EGR GASKET. This is how the timing of fuel injections into the chamber is made. DIY car repair with Scotty Kilmer, an auto mechanic for the last 50 years.Thanks for watching! don't seem to think the crank/cam sensors could be the culprit. hesitates around 40 to 60 mph. I'm having the same problem and being discussed in another thread. Perhaps theres a lot of sediment at the bottom of your gas tank, perhaps your fuel gauge is reading incorrectly, or perhaps you need to change the fuel pump or fuel filter. If it is just a bit of dirt or some moisture, then the best thing to . How to Fix Car Hesitation - YouTube Change it out to a clear plastic one temporarily while you're sorting it out to see what kind of crap is coming out of the tank. Engine starts right up and idles smoothly. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor. One thing is for sure, you wont be able to drive safely if your engine keeps hesitating while youre on the road. Started February 16, 2022, By The odds of winning are based on how many people enter the giveaway.9. November 27, 2011 in 90 - 00 Lexus LS400, I am sharing my experience with this chronic problem of misfire at a certain speed when cruising that I see repeatedly in this forum, First I admit that this forum helped me a lot to find the cause of my problem but unfortunately after spending lot of money in changing many parts, First thing I want to say is that many issues can lead to the same symptoms of hesitation or misfire between 40 to 60 mph, Hesitation at this speed does not mean that the engine is only hesitating at this speed and THIS IS THE TRICK, The misfire is clearly felt at this speed because the torque converter clutch is engaged that means the engine and transmission are considered as 1 unit so any slight misfire in the engine will be felt in the transmission and this is happening only when cruising. Any offensive, obscene, or lude comments will be ineligible to win the giveaway.8. 1 Answer Engine V6 is hesitating when accelerating over 40 mph Engine hesitates and almost misses when accelerating over 40 mph. Mark helpful 60 ESBJr answered 7 years ago Thanks for the help.I'll try those. If you do not agree to these terms, then do not enter the giveaway.Things used in this video:1. 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. 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. Lexus # 89465-50140 / Denso OEM # 234-4167 / Denso Universal # 234-4209 / Bosch OEM # 15272 / Bosch Universal # 15733, Bank 2 Sensor 1 - Passenger side (right front) on exhaust header. Bad spark plugs, sensor failure, and bent valves can all cause engine loss of power, thus . It's often difficult to discern the difference between an ignition misfire and a torque converter malfunction. She kept it well maintained from what I was told. Transmission hesitation at 40 mph. When this is not working properly, you may also notice a strong smell of fuel. point. wrong gear for the right speed or vice versa . Mechanics have been little help to this Come join the discussion on performance modifications, accessories, troubleshooting, maintenance and more! 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. Disclaimer: Links on this page pointing Drive it long enough that way & a CEL will appear, prob. Put the clear filter on and we are up and running past 40-45mph without the sputtering, hesitation and stalling. Hyundai Elantra Questions - Transmission hesitation at 40 mph - CarGurus Please see our. My stabilize traction control light came on but went off now check engine light is on and my car hesitates when I step on the gas and go up a hill I got a 2011 Chevy cruze. The vehicle may even stumble entirely during these seconds. I am truly stumped. Doesn't appear to be overheating, and temp gauge seems to be working fine. I just recently purchased my 00 Focus SE with 96,xxx mi. Take the fuel line off at the carburetor, put it in a glass bottle and see how much fuel you're getting and how strong a flow. Car hesitating while driving. 2023 I tried the MAF/MAP route but had no luck. Changed my spark plugs new valve cover gaskets oil on dip stick looks clear though had fuel in oil but tried igniting the oil on dip stick , nothing . If the car is traveling 40 mph and the speed suddenly falls while the engine continues to rev, the transmission probably is to blame, especially if pushing the accelerator has no effect and the car continues to slow down. Our technicians tell us this condition is commonly caused by a failed automatic transmission torque converter. Specifically, it will tell you what your TPS values are, then you can compare that to what they should be. However, there is a long list of other reasons which could be the cause of this hesitation problem too. We changed spark plug, fuel filter, transmission fluid, engine oil, engine filter, and clean throttle body, change air flow sensor. Much appreciated. Car jerks when accelerating between 40 & 50 mph - CarGurus It is possible for you to mistakenly think your gears are slipping when in fact it is your engine hesitating. It hesitates for a second and then takes off. I had it flashing CEL for 10 seconds but it never stored a code (trust me, I have the stuff to find out). 1970 FJ40 Grey, 4 inch lift, Winch, Aussie rear, ARB front. You cannot paste images directly. Anyways, I took the kids for a road trip down to the Outer Banks in NC. replace if needed . The problem persist. This did not fix the problem, just made it worse when driving. I would check all my connections, too. If your car is moving at 40 mph but is unable to accelerate any further, the transmission probably needs service or replacement. ESBJr, have you ever found out what the problem So I called and had it towed home the remainder of the way. I had suspected such for quite some time and just recently tested the theory by heating a new sensor on an electric stove element. Let me know and I will post them. The engine control unit depends on the MAP sensor to determine the engine load. The radiator fan operates on a fused circuit with high amperage relays to drive them. Recall the primary O2 sensors are to trim (fine tune) the fuel map. Timing could be out. It was the plug and wiring for the plug. Several years ago, having a Olds Intrigue 3.8 L, that smillar jerking effect happened and around this speed, car on top gear. We may earn a small commission from affiliate links and paid advertisements. Car hesitation whi Shop the Scotty. To help you pinpoint the cause of this problem, below are 10 of the most common causes of engine hesitation while driving. My 2007 Ford Edge hesitates/ jumps at 60-70 mph. Fuel filter. Misfire is due to ignition, or lack thereof. Why your car may be jerking, bucking, hesitating, or shaking in town or at highway speeds! I have the same thing on mine but hasnt changed with all new coils and plugs. Releasing my leg from the throttle and it picks up speed for a while but when I press the gas pedal it hesitates. https://goo.gl/CFismNScotty on Social:Facebook https://www.facebook.com/scottymechanic/Instagram https://www.instagram.com/scotty_the_mechanic/Twitter https://twitter.com/Scottymechanic?lang=enThis is the people's automotive channel! Vacuum leak will affect idle before anything else and certainly not at 40-45 mph and nowhere else. My mustang hesitates 40mph and gives me hill starts assistant not available ! A clogged fuel filter can cause the engine to get too low fuel pressure or cause a clogged fuel injector. Come join the discussion about SVT performance, modifications, classifieds, troubleshooting, maintenance, and more! 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..