Not if its unfamiliar to the audience or needs to be disambiguated. I just recently acquired the car from a friend of the family. went to dealer. CarGurus has 44 nationwide S-Series listings starting at $3,688. It comes on as I get below 40. Robert, I have not yet found the answer. A forum community dedicated to Ford Focus owners and enthusiasts. The following problem occurred afterwards. Content will be removed if CarGurus becomes aware that it violates our policies. Any offensive, obscene, or lude comments will be ineligible to win the giveaway.8. Mechanics have been little help to this WHY DOES CAR HESITATE AROUND 40MPH AND STARTS TO JERK. fuel pump. Cheap Scan Tool: https://amzn.to/2D8Tvae3. the heater is only used during initial engine start up. Any ideas what it could be or where to . My car stalls when Im getting ready to pull of at a light and when I hit the gas I have hit hard for it to go and I have my fuel pump changed I have transmission leaks they were fix it just started doing it a few minutes and my car knocks while sitting a light and rattles when I take off sometimes, Any answers you described my issue to the T, I was wondering why does my car lose power/jerks and hesitates to accelerate when Im close to the E Ill have 60 miles of fuel left and it starts to act weird. That's also why a crack in the exhaust, even downstream of the O2 sensor element, will result in a CEL, oxygen can get to the sensor before it has time to cool. I would check all my connections, too. There's a wealth of information to be found in what you get from it. in the engine (youll need a pick set like a I've been an auto mechanic for the past 50 years and I'm here to share my knowledge with you.Here's our weekly video schedule:Monday: Tool giveawayTuesday: Auto repair videoWednesday: Viewers car mod show offThursday: Viewer Car Question Video AND Live Car Q\u0026AFriday: Auto repair videoSaturday: Second Live Car Q\u0026ASunday: Viewers car show offSecond Daily Upload Every Afternoon of Live Car Q\u0026A videos as well!Scotty Kilmer is a participant in the Amazon Influencer Program.#savagescotty either. Has the problem gotten worse since the mechanic changed those parts? the same problem and this is actually a deciding Scottys Top DIY Tools:1. looked at that yet? I replaced spark plugs all but number 3 today didn't change anything, change tps nothin, changed air . Well a few more miles down the road it started again. Tool giveaways every Monday to help you with your own car projects. Will try and let Hyundai Elantra 2012 MAF (Mass Air Flow) sensors Sorry, I find it a bit hard to accept that a defective MAIN O2 sensor in an engine with TWO sensors, would result in a lean misfire. I checked the PCV and it was okay so I reinstalled it. Vac leaks can cause or contribute to the symptoms you are having. It may not display this or other websites correctly. Car engine hesitation is a noticeable problem that can occur as youre driving. If you have not cleaned your fuel injectors for a long time, then theyre probably corroded with carbon deposits or other debris. I tried the MAF/MAP route but had no luck. Michael Davidson started writing screenplays in 2003 and has had a screenplay professionally produced. A good scan tool might reveal something but it may require that the car be hooked up to diagnostics while the actual event is occurring, so that data from various sensors and modules can be captured in real time and analyzed by a skilled mechanic. About a month or so ago, the car started hesitating, almost a sharp jerking, when it gets to around 40-50 MPH. We're a forum community dedicated to the Pontiac G6. The car seems to hesitate in 4th gear right around 43 mph. andbeyond, Nov 16, 2017 #20. 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. I would suggest having a professional from Your Mechanic come to your home to diagnose your mass air flow sensor. I have a '96 saturn sl1. If you purchased it locally and do not have the receipt, just take it back and they may have the sale on record. Isabella83 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. 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 have spoken to This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Fiberglass tub. I could see a faulty O2 sensor leading to a failed emissions test or lousy gas mileage but dramatic engine mis firing at a narrow band of speed seems something other than fuel trim is at fault. Doesn't appear to be overheating, and temp gauge seems to be working fine. Car runs great between 0-40 mph and from about 50 mph on up but the car jerks while eccelerating between about 40 - 50 mph. If you have an account, sign in now to post with your account. I have a 1991 Toyota MR2 with a 2.2 liter engine and 5-speed stick. What seems to make the problem better or worse? They are as follows: Bank 1 Sensor 1 - Driver's side (left front) on exhaust header. 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. Specifically, it will tell you what your TPS values are, then you can compare that to what they should be. http://www.g6performance.com/forum/showthread.php?t=22038. I had the same problem and it was the gas tank. The most honest and funniest car channel on YouTube. 03-30-2004, 11:11 AM. . Classifieds - Engine/Transmission/Transfer Case, BJ42 | FJ43 | BJ44 | FJ45 | FJ45LV | HJ47, North American Clubhouses - Central Region, CA.AB- Rocky Mountain Land Cruiser Association, CO/WY- Horsetooth 4 Wheelers Cruiser Club, TX- Lone Star Land Cruisers - Austin Chapter, TX- The White Trash of the Elwood Chapter, CA.BC- Okanagan-Similkameen Land Cruisers, NV- Battle Born Cruisers of Northern Nevada, Vendors: Accessories - Electronics - Recovery, http://forum.ih8mud.com/forums/pa-keystone-cruisers.77/. Any codes? ", Now I need help and I am not sure if I should start a new topic or not, This is related to error code 47 in traction control (When idle switch is ON, sub-throttle position sensor signal is 1.45V or higher), Any ideas if that means that I should replace the sensor or it can just be adjusted, Yes you are right but it seems that by chance the sensor itself was also out of order. this happened on one of my previous cars, it was the spark plugs and the distributor. The engine then stalled. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. I've been dealing with this issue since last week. If it happens mainly with acceleration, even slight acceleration, you may have a plugged catalytic converter. Changed Fuel filter. After. The b-body EGR was designed to work with a certain amount of back pressure and has a tendency to fail early when used with a cat-back. Just wanted to make you aware of a potential problem, and to include it as part of your search. It is basically stock and has been desmogged. Doesnt using an abbreviation only to then state what the abbreviation stands for really defeat the purpose of aforementioned abbreviation? Still my is not starting smoothly. was? So if you are handy with a soldering iron and shrink tubing you could adjust the cable harness length to suit. In any case, you will likely find the problem relates to an imbalance in fuel and air mixing in the chamber. I noticed that. Changed Fuel pump 3 times within 2 weeks 2. This comes and goes but happens enough that I have a service appointment scheduled for tomorrow with the dealership. When a engine is hesitating it will cause the car to lunge or surge which will cause a sudden jerk as the car slows down. It is possible for you to mistakenly think your gears are slipping when in fact it is your engine hesitating. I am truly stumped. Help? Have you taken it to a local mechanic for an inspection? This helps the engine control unit determine the right amount of fuel to inject into the chamber. Any type of miss, or lean condition, like a clogged injector will cause a code to be set. This was traced back to a light film of corrosion on a coil wire. The mass air flow sensor is a unit in the intake system that monitors air intake as it is mixed with fuel prior to being injected into the motor. Sometimes this can be a quick, cheap, easy fix for initial stumbling and hesitation when you step on the gas. I tested mass air flow harness and I get 6.1 volts at PCM wire. describing the symptoms (which are extremely Do I need to get a specific tool, or take it somewhere to get tested? What could be the problem? The car will jerk real bad when driving at a steady speed and also when slightly accelerating. What causes a car to hesitate when you accelerate? Im not sure I understand the question. Check and change the starter relay on the inner fender near the battery. I am going they the same issue with my sons 99 If you're driving 40 miles per hour and think the transmission might be going bad, check for these several symptoms. At that moment, a bad transmission can cause the car to jerk, and that could be accompanied by a loud "slamming" noise. Must be 18 years or old at the time of entering this giveaway OR have your parents permission.6. At exactly 40 mph. I have a 2012 traverse. This started around may 2012 with 99,000 miles on the car. 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. 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. Billy from United States 7 years ago BI Comment Same issue here 17 reports 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.. The car may be pulling timing for some reason when its hot. We took the car to the dealer where we purchased it and they were unable to find anything because there were no codes present. help please! It has been a work in progress, and around April I finally got it running after rebuilding the carb. Good work ehabmarco. a colleague today regarding the potential 2007 About a 90 min drive from where I live in Virginia. I took several days before reseting the CEL "took". 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. Flat rate pricing based on labor time and parts, Hand-picked, community-rated professionals, Trusted mechanics, rated by thousands of happy car Steve. Why your car may be jerking, bucking, hesitating, or shaking in town or at highway speeds! EPB, BMS for Specific Vehicles, Software Lifelong Free Update, NOT Support All Cars $199.00 . Could be some debris in the secondary jet. 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. See Also: Drive-By-Wire Throttle Pros/Cons. Entrants that do not comply with YouTubes Community Guidelines will be disqualified: https://www.youtube.com/yt/about/policies/#community-guidelines16. This along with using 87 octane or higher gas solved the issue entirely. Youll probably need to take it somewhere to have the issue diagnosed. Sounds like something got messed up at the last service, if those problems have only occurred since you were in the shop. Standard mailing time from the win date and the date received, will depend on the winners geographic location.14. wish to see you more in the coming days. Thanks for the suggestions so far. To help you pinpoint the cause of this problem, below are 10 of the most common causes of engine hesitation while driving. At this point in time, I'm thinking it could be my 13 Answers 805 richksiny answered 7 years ago i would say fuel filter , pump as well. Yes it is an automatic. Faulty Transmission Control Module And to make it worse I had to sell a bunch of my tools when I moved so I dont have the same diagnostic abilities I once had. Also, a loose motor mount, or rear diff'l mount, might result in a tugging feel due to the resulting "in and out" action of the lockup clutch, at those speeds. It did great going down there and throughout the week that we stayed.