car runs rough at 45 mph

My audi a3 car is just starting to jerk while driving it I dont know if its because around my house it was flooded with water, after the water has dried off, I started the car and a lot of water came from the muffler, the jerking problem has started 3 days after the floodwater came from the muffler. Does your vehicle require premium fuel according to the owners manual? But dont worry its not always a sign of something serious. Was this resolved, am facing the same problem with my Audi A3. I limped into the he gas station in my 08 Altima and fueled up and afterwards it started jerking and running rough so I changed the spark plugs due to a mis fire in one of my cylinders and still doing it. The engine may also be much noisier than it normally is, sounding more like an aeroplane taking off than a car. This will probably require a mechanic to look at the car and give you an accurate diagnosis. If I accelerate fast, the car doesn't run as bad though. I drive a Polo vivo 2012 model. Basically - part throttle, light load, slight grade or hill. You must inspect all bushings, tie rods, and other parts that make up the suspension system. When car feels like its jerking, surging, bucking, or stuttering after you step on the gas pedal, its usually a result of inadequate fuel, air, or spark during the combustion process. It also lacks in picking up speed to when trying to drive from a stop light or stop sigh. Its job is to measure the amount of air entering the engine so it can relay this info to the cars computer. If I let it idle for a few minutes it would eventually pick up and would be OK for the rest of the day. please update Im facing the same issue. What can be the possible problem? I was told that it was 3-4 clutch and I need to have the trans repaired. A bad or dirty spark plug can prevent this proper ignition and will cause the engine to misfire. Was Told Why Is My Car Accelerating Slowly? It looks like you have a bad computer, the Quad drivers for cyl 1-4 failed, you're loosing injector pulse. What did the mechanic say your next steps should be if the transmission fluid change didnt help? Some drives itll do it barely once and others the engcaleine will pop, truck dies or it just keeps jumping around. I had two bad COP's (cylinder 2 and 3). Opposite the fuel side of things, is proper air intake. I am stumpped please help Posted by phyliciak on Mar 19, 2012 1 Answer Howard Pfeiffer Chevrolet Master 1,249 Answers. Any suggestions? Replaced throttle gasket, fuel pump, throttle body, & inertia switch. The brake pads and rotors will wear out over time and need to be replaced several times during the life of the car. the CEL will not trigger during start up or any in town sub 45 MPH driving. Oil reduces corrosion, helps to cool the engine, and Ignition Cable (Spark plug wires) Replacement, Car jerks forward at high speeds Inspection. I like the computer answer better because it is cheaper and makes a little sense but after 70 mph or so the car stops with the jolting and insted just shakes a tad. when I try to stay at 40 45 mph my car chugs jerks slightly, but when I hit the gas it goes away only usually at those speeds. If that doesnt work, youll need to take it to an auto repair shop to fix the problem which will likely include replacement of the catalytic converter. When I am in reverse and then stop and switch to drive the car bucks, it also does this when I come to a complete stop and slowly start to accelerate. Ive done a code check on it came back as vvt solenoid so bought it and replaced it but my problems still not fixed. What happened was I pulled mud threw my intake and went into the third cylinder and it started missing. At normal city driving speed, 45-55 mph, Big Red (that's her) tends to shudder a bit. Engine decompression helps your brakes last longer and car stop sooner. So I paid to have them replace. This will cause your overall driving experience to feel rough and you'll likely be bouncing a little bit in your seat from it. If you feel extra vibration when braking, but not from the steering wheel, it could be the rear brake rotors that are worn or damaged. Here is a more detailed list of how to fix a car thats shaking while driving. Any Suggestions Thanks in advance. How To Fix A Car Thats Shaking While Driving? I replaced the carburetor fuel pump plugs and radiator . The fact that it starts up is a good thing. Over time, this accelerator cable can wear out. Id take it to a shop to have it inspected. I dont know. 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. On the other hand, the cause for a misfire can be as simple as a loose vacuum hose. If your car wobbles, it is usually due to bad suspension bushings or a bad wheel alignment. Jerking could be caused by all sorts of different failing components, but you may be able to narrow down the problem with some careful observation. That button can be inside the glove compartment or on the dashboard on a Lincoln. If the whole car shakes a lot more when you press the brake pedal, it is very likely caused by the rear brake rotors. Use a scan tool that gives you live data and check some of the engine parameters. When going on speed 20-30 miles speed that's when my car vibrates, over 30 it stops vibrating, I was told the dealer that its the axel. Since it also mentions your EGR, this is a good place to begin since EGR systems can develop restrictions that keep the valve stuck open. Does my 2001 Mercedes need Motor mounts? Are you up to date on all of your maintenance? OBD scans often do not detect the failure which is only a partial failure of the component in addition to the lack of the appearance of a check engine light. New flow senior installed.did dianostic. I have a Sharon VR6 although a Passat engine with sensor. The only thing that worked, albeit temporarily was a spark plug replacement. Aside from the EGR system, the best way to inspect for a vacuum leak is with a smoke machine. You will want to liberally and selectively spray it in suspected areas. Always endeavor to refill the power steering reservoir and tighten any loose steering component. The check engine light comes on ONLY above 80km/h, and it flashes. It will eventually. Therefore there should be two catalytic converters total on the entire vehicle. It wasnt a hard fix I just cleaned the sand and mud out and gave it a tune up right then while it was all apart. Immediately goes away if you let off the gas pedal. I replaced spark plugs all but number 3 today didn't change anything, change tps nothin, changed air tempature sensor and no change. YourMechanic All rights reserved. Drain your gas tank and examine the whole area for rust, gasoline gel stuck on the walls, and scale. My car started shaking while driving and hitting 40-45 mph. How long ago was the vehicle in the shop? Typically for each Bank of exhaust there is one catalytic converter. In this case it would be the cars fuel pump. The computer then instructs the fuel injectors to provide the right amount of fuel at the right time for proper air/fuel mixture. However, it can be disabled both temporarily and permanently (it can be enabled You can get a key for the vehicle at a dealer or a locksmith, just be sure that it's a PASS-key III+ which is denoted by a plus symbol in a circle. Trouble code P0455 (https://www.yourmechanic.com/article/p0455-obd-ii-trouble-code-system-gross-leak-evaporative-emission-by-john-nelson) is for the emissions system of the car and the only effect it will have on the car is the fuel economy may go down slightly and the car will pollute the air a little Engine misfires can be caused by a list of problems, but there are a few suspects that occur more than others. When you put new plugs on, make sure you got the firing order correct. This can happen due to an improper air-fuel mixture in the engine. Rebuilding a damaged engine may be a more economical option than full replacement. If your accelerating won't go past 40 mph, then there might be a problem with your exhaust pipe. So I used my scan tool to get a list of codes. No rotten Egg smells, Overheating, or low exhaust pressure and No Code PO420. 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. Are you saying the jerking occurs when you hit 3,000 RPM? Its been doing this lately !!!! My Car Was Running Great. Cars have become increasingly complex over the years, and with that have been a growing number of symptoms that can mean multiple things. The most common reason why a car is shaking when driving is due to damaged or unbalanced wheels. Hi I just purchased a car friday was unaware of how the car jerks a little when I push on the accelerator!!!!! Sometimes it feel like the car is being pulled back when i am pressing gas. If the brakes have been applied, heat will be conducted from the rotor to the wheel and thence to the lug nuts. Elantra GT 1.8L Dohc Inline 4 Cycle Automatic transmission 45,676 miles Rough idle issue has become more frequent and worse and impossible to ignore. To find out if warped brake rotors are causing the shaking while driving, you need to pay attention to when the shaking occurs. No expense things to look at would be to see if any moisture is in the plug area and that it has plenty of dielectric compound between coil and plug. Why a car won't accelerate past 40. Because I done almost every thing from plugs, maf, filter, pump nozzles but still jerking. 2006 Acura MDX 135,000 mi, Visitor Shuddering usually between 25-40 mph when slightly depressing gas pedal, cruising or slightly accelerating. Comment Flag If it wasnt running at that time and water just got in the exhaust system, you should be fine after a while. It developed a intermittent problem where it would start OK but wouldn't pick up when the accelerator was pressed, the engine would run rough, emit loads of smoke and have no power. like for my issue car runs good but when I press the gas pedal itll go but once at a certain speed like after its warm 20 mph itll act like its in neutral but I let off and touch gas pedal itll go but get to say 45mph it does it again Now I thought mayb the valve cover being bad and me having oil and coolant tanks smelling like gas could also cause it to do that but not sure Ive thought bout throttle body sensor as well but I know plugs didnt have no oil on them as in they were tanish color when I pulled them so Im in a issue and dont know what else could cause that to do that Does anyone have any type of advice to help me out here I need to get issue fixed I blew motor up n my 99 honda civic ex coupe few days ago my 04 is my girls car and our back up car that we have to daily drive plz and ty. To fix this problem, take your car to a tire shop to rebalance the tires. I have the same problem dont d yet u find a solution? From what others have said the CEL is a little slow to throw a code for misfire. Wheel Bearing Noise Causes & What Does It Sound Like? The problem might also be from the timing or floating of the valve. It loses power once I step on accelerator pedal. Having high cylinder compression is critical for giving the engine enough power to get the vehicle up a hill. I notice from 45 to 55 the rpm guage moves with flutter or rough running engine. I consulted so many mechanics and they told me that its from the timing, electrical contact, airflow meter, brain box or pulley for timing. If you havent changed your tires in a while or you know you had a minor accident with a curb its definitely time to do a thorough visual inspection of your tires and wheels. Make sure all spark plugs were torqued correctly inside the head. Any idea what could be going on? Also when I put on my air-condition the engine goes off. It Also Runs Roughly And Has A Constant Squeaking Noise, Like Its Coming From A Belt Or Something. when i engage cruise control at 50 mph it smooths out. How did u get helped and where cos am having the sameproblem please advise me. Is there anything you can do to more easily replicate the problem, or anything you can do to make it go away? Engine, transmission and rear end issues are usually more constant but can increase or go away under acceleration or decelleration. To help you pinpoint the cause of this problem, below are 10 of the most common causes of engine hesitation while driving. GTHOMASIV. You can also test your fuel pressure or try to do a compression test. On average, car brake rotors should be replaced every 70,000 90,000 miles. This procedure involves adding small amounts of weight to each wheel, and it is done with the help of a tire balancing machine. 1996 buick LeSabre runs rough at 50 mph The engine loses power and runs rough at 45 to 50 mph. In this guide we talk See Also: 9 Reasons Your Car Makes a Rattling Noise While Driving. OBDII code was o2 pre-cat bank 2 (cyl 4,5,6), and paid $400 (200/200 pt/lbr) to replace. Local minivan operates a bus from Hat Yai to Songkhla hourly. Even if I drive slowly , I f I go faster the sound became louder. my car is a 2008 honda stream and I felt a bucking sometime ago I took it to the garage and the plugs was changed and the mechanic uses carburetor cleaner to clean the injector since then im feeling a jerk when driving slow or when I am stopping. More than likely, PH Jr. is enjoying the false high of thinking that treating his vehicle to premium fuel is actually working. However, sometimes car jerks when accelerating is a common problem faced by several car owners. NONE of them, because it would cost them NOTHING to let their customers know, yet would cost them a new future sale if the owner hates how the vehicle runs. If so, what codes are stored? I noticed this issue is very prevalent in warmer weather. Fuel should have been inside the filter once you removed it. it runs fine but when I try to get up to speed it starts running rough and I can't keep it at 45 mph it starts to idle bad at 2500 rpms the Car had new plugs and wires. Do you. Now the mechanic is out of ideas he says its an ECU. What you may have be thinking the problem is, please? Just had spark plugs,coil pack etc. A vacuum leak is when there is air entering the motor from unwanted paths. A deficient spark plug causes the engine to misfire, making your car jerk when you accelerate. So, once in a month, it is vital to clean the gas tank. Kind of feels like you're driving on a very rough roadit happens when you're driving around 35-45mph with your foot barely on the gas. A clean filter can drastically improve the lifespan of your cars engine, including reducing or eliminating the acceleration jerks. I had the transmission fluid changed a few months ago and the mechanic said there were no shavings in the fluid so the transmission is good. Related: 5 Symptoms of a Bad Driveshaft (& Replacement Cost). But what could be causing these shakes, and do you need to fix the problem immediately? Just visually inspecting the axles is usually a no-brainer because the differences are too small to see with your eyes. Like Bill said the CEL isn't easily tripped with a slight miss, experienced this many times. Thankfully, this process is quite easy using a fuel injector or fuel system cleaner. With a faulty MAF sensor, you may experience your car unexpectedly jerking or surging forward while driving at higher speeds such as on the highway where it would be most noticeable. If I let off the gas pedal, the vibration will stop. I also had a VR6 years ago and ran into the same issue. If you find there Hey thanks for writing in about your 2005 Jaguar XJ8. If its dirty, replace it. Always keep an eye on the engine temperature, as running with a hot engine is likely to cause serious permanent damage to a car. If your steering wheel shakes when you press the brake pedal, it is likely because of bad front brake rotors that need to be inspected and replaced. Can you describe the noise youre hearing? Can you tell if that kick is coming from the transmission? It doesn't matter if the car is in 3rd, 4th, or 5th as long as it is above 80km/h 50mph. We will discuss the causes of this problem and how to fix it. Hi I have an issue with my toyota belta when I press on the accelerator paddle the car jerks for a while and becomes stable during the third gear upwards. Axle shaft issue man ur car will vibrate between 30km and 40. Could be bad fuel. Spark Plug. My car has an automatic transmission. However, if you're facing the issue of your car starting out rough and then staying that way (never smoothening . Hi I have a 1988 ford f150 5.0 5 speed just got it out of the shop and when I was driving home it started jumping and then would run fine then jump again badley just had new distributor new sensor relays so what could be causing this. The most common cause of your shaking car is damaged tires or rims. baseball, fishing | 2K views, 10 likes, 0 loves, 0 comments, 2 shares, Facebook Watch Videos from 800 Pound Gorilla Media: Robert talks about fishing in. Also, he had the second cylinder replaced, as it was misfiring. A rough-running engine is a real drag because you generally have to deal with misfires, stumbling, poor idle, etc. Few things are more annoying than a car that shakes when driving at higher speeds, especially when going for a long road trip. My car is doing the same thing right now. Flat rate pricing based on labor time and parts, Hand-picked, community-rated professionals, Trusted mechanics, rated by thousands of happy car If the wheel bearings wear out, the wheel can move freely from side to side at any speed, causing disturbing vibrations. This can be a chronic problem, or it can only last a few seconds before the transmission works properly again. This did not help same problem came back one month later, misfire on cylinder #3 and all spark plugs fouled. It has double exhause, six plug and twenty two pin. Magnus is the owner and main author of Mechanicbase. The leveling system on your vehicle works much like filling balloons. Im not sure I understand. One of the most obvious signs that your engine has a problem is stuttering while. These keys are coded and must be learned You may have a bad tire or something that is loose on the front end. What is the cause and remedy? Sometimes first gear from a dead stop feels like a kick from behind but if I give it enough rpms its usually pretty smooth. This will cause the car to respond more slowly when you press on the gas and it lurches instead of providing smooth acceleration. Hi,I have a 1.3 Avanza 2008 it was involved in accident and sent to machenic now is jerking when am driving not easy to change gears,no power please help. Car runs rouhg at 50 mph When I reach speed of 45 mph to 50 mph the car starts to run rough - when I put on diagnostic machine the engine shows no sign of problem with injectors or plugs. However, the injectors can be so fouled up with carbon deposits that even the best fuel injector cleaner may not do the trick. The most common cause of why a car loses power when accelerating is a clogged fuel filter or engine air filter. lexus es 300.. with 220k 0n it.. the prolblem is check engine is on.. codes po 300 200 400 600 mis fire codes . V8. A failing fuel pump would struggle to keep up with fuel demands and cause your car to jerk or surge forward while driving. Make sure the terminals are free of corrosion and the battery cables are tight. The correct sensors can be recognized with the imprints similar to A29-662 L41 SGI B002 1707A4. Alternatively, you can purchase a reusable air filter such as a K&N which allows for future cleanings instead of replacement. Eish I tried everything in my power on my Golf5 2.0fsi dsg. My 2000 Toyota corolla jerks and sometimes switches off while driving. I recently got the cars transmission serviced by the dealer they reset the ecm and flushed the trans and it felt good for a week then all the same things started coming back. It is possible that all of the spark plugs and spark plug wires need to be replaced in order to fix the problem on your Plymouth Grand Voyager. Have you ruled out the possibility of a bad motor mount or transmission mount?

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