A catalytic converter is responsible for reducing the amount of pollutants that exit out of a cars exhaust. Most apparent when coming up to speed on the highway or slight acceleration at highway speeds (>60 mph), engine revving between 2k to 3k rpm. It seems to happen when I'm just giving enough gas to maintain speed. The jerking and loss of power sounds like maybe not all cylinders are firing. You must also inspect the brake rotors and suspension parts for any damage. Now the vehicle is convulsing/shaking. Last night I was driving home and I heard this knocking noise, a minute later the noise went away and my check engine light came on. What you're gonna need is a real scanner, such as a Snap-on Soluus, have someone who knows how to use the scanner sit in pass. It reoccurs anywhere from 20 seconds up to a few minutes. A fluid leak can also cause your car to overheat, which can lead to even more problems. Therefore there should be two catalytic converters total on the entire vehicle. 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. SOURCE: when im driving about 45 or 50 mph my truck starts mcdevito75 here, It could be a dirty gas filter, weak fuel pump, fulty needle valve in the carb. Made with in Silicon Valley. It stands for: P0301: Cylinder 1 Misfire Detected. The wheel bearings are mounted on the wheel hub and allow the wheels to rotate freely. If the car shakes more when you press the brake pedal, thats a strong sign that the brake rotors are causing it. the CEL will not trigger during start up or any in town sub 45 MPH driving. 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 it's in neutral but I let off and touch gas pedal itll go but . . Just visually inspecting the axles is usually a no-brainer because the differences are too small to see with your eyes. 2006 Acura MDX 135,000 mi, Visitor Shuddering usually between 25-40 mph when slightly depressing gas pedal, cruising or slightly accelerating. I was beginning to think I was losing my mind. A dirty air filter will allow some particles to get into the engine, which in turn will affect performance and cause jerking. So, once in a month, it is vital to clean the gas tank. Can a car jump start with a bad fuel pump? It looks like you have a bad computer, the Quad drivers for cyl 1-4 failed, you're loosing injector pulse. 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 next best technique is to use an arosol spray such as brake cleaner. costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance, The statements expressed above are only for informational purposes and should be independently verified. Have you ruled out the possibility of a bad motor mount or transmission mount? My golf mk1 when l it shakes very bad it like it using a egg shape Tyre on the left front wheel and my steering shakes ,bad pushing the to the left. As you see, there could be a lot of different potential problems causing this issue, but its not all of them. I have a Sharon VR6 although a Passat engine with sensor. In an engine rebuild bearings, gaskets, and seals are replaced. Should I be worried if my car is shaking? The problem got progressively worse and dangerous to drive to the point where I would be going 60+ mph on a highway and the car went into neutral . If there are no codes, check the transmission fluid. He said flow senors. Don't notice any issues on the highway. Please see our. A clean filter can drastically improve the lifespan of your cars engine, including reducing or eliminating the acceleration jerks. Some drives itll do it barely once and others the engcaleine will pop, truck dies or it just keeps jumping around. Hi I just purchased a car friday was unaware of how the car jerks a little when I push on the accelerator!!!!! 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. This is so because the ohms or resistance, the voltage and the signal from the sensor all have to be at the correct Nissan Specifications to be recognized and accepted by the Nissan Engine Control Modules. The check engine light comes on ONLY above 80km/h, and it flashes. Related: Car Jerks When Braking or Idling. Another common cause is improper tire balance. Hi, my name is seun, my car is nissan almera 2013, just 4 days ago i was going to see my mum, immediately i drove out of my compound, i discovered that i cant accelerate, when Im on brake, my car will start a low jerking and after a little while it will stop. Im not sure. Carburetor Problems. This is a 2013 Hyundai Accent GLS 1.6 (July Manufacture Date Code) it has about 145,000 miles on the odometer. Car is running rough at 40 to 45 miles per hour 1994 Cadillac Seville Asked by Joej in Elkin, NC on October 31, 2009 The car misses at 40-45 in overdrive change to drive 3 and it quits any insight 1 reply Report Answer Popular Answer Oakman on November 03, 2009 A secondary ignition misfire can cause the conditions you are having. If you notice your car surging forward or jerking at high speeds, it may be due to a mass airflow sensor (MAF) that is failing. Transmission has supposedly been replaced. Good morning my Juke Techna is loosing power when I accelerate, and thereafter it will jerk and loose power even if its at a low speed and the engine light is on. Somewhere the fuel drop then suddenly rpm decrease better check the complete fuel system from tank to injectors also . Once it starts if I let off the gas or give it more gas it goes away. As the owner of Car Treatments, he works with a team of automotive experts (in their respective fields) to publish new content on a regular basis. Don't fret because with help from this article, you can find the cause and handle it. If your car jerks when accelerating, it can be an indication of several current or potential problems. However the vehicle is still running roughly around 45 mph, when I normally increase the speed. I replaced the tires and it is still shaking while driving. 10) Low Cylinder Compression. (Low & High Speeds), Car Shakes When Stopped or Idling? And how much did it cost if you were able to fix it? You may need a new EGR valve and other EGR components. I am running out of ideas also when I hit the gas hard I get black smoke. I have changed plugs, maf sensor, leads, coil pack and its no different, any ideas to point me in the next direction would be greatly appreciated. If there are any remaining codes, please post them here. Tire lug nuts are extremely hot after driving. It can also happen due to misfires caused by worn ignition parts. It loses power once I step on accelerator pedal and it jacking. Clogged Catalytic Converter. Engine, transmission and rear end issues are usually more constant but can increase or go away under acceleration or decelleration. Is there any solution please. Axle shaft issue man ur car will vibrate between 30km and 40. If the car vibrates more when you press the brake pedal with light force and if you feel the steering wheel vibrate, the problem is most likely in the cars front brake rotors. Your cars air filter is the first line of defense against dirt and other foreign particles. It jerks doing into 2nd gear I notice after driving for a while itll jerk when going into other gears . 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. You can also hear as the engine stutters from inconsistent fuel intake. What check engine light codes are you experiencing? 45 to 60 mph Engine will start getting to wear it is working, starts to sound "different" and run a bit rougher, then it will buck or hesitate. Looking for advice on what to do next, My Toyota corolla axio 2018 jerks after acceleration, looses power when uphill.what could be the problem, someone says i clean the engine throttle. The computer then instructs the fuel injectors to provide the right amount of fuel at the right time for proper air/fuel mixture. Any suggestions as to what it might be?? Cars have become increasingly complex over the years, and with that have been a growing number of symptoms that can mean multiple things. If that is not the case, let me know. Took it into the shop and the mech told me that 2 of my spark plugs were misfiring. There is also a loud running noise coming from somewhere that I only hear when ideling. Due to the fact that a shaking car is most likely caused by something out of balance, such as the wheels, brake rotors, or a drive shaft, it can be quite difficult to find the problem without the right tools. The engine is misfiring as well. Q: Car is running roughly at around 45 mph asked by Amelia C on July 27, 2016 My van has gone 180,000 miles. Even if I drive slowly , I f I go faster the sound became louder. What I did was I cleaned the entire throttle body with a spray called throttle body cleaner and it runs like new. Could be an issue with one of the accessory pulleys or belts too I suppose, or maybe even something inside the engine. 2000 Lexus ES 300 check engine light and traction off lights are on and the engine runs rough usually when I hit 45 mph . Don't forget, the boots are the culprit many times as well. Oil reduces corrosion, helps to cool the engine, and Ignition Cable (Spark plug wires) Replacement, Car jerks forward at high speeds Inspection. The older the truck gets, the more often it shows itself when feathering the gas between 45 and 55. If he cycles for 6 hours, how far does he travel? While most cars on the road use drive-by-wire electronic throttle control to accelerate, a physical accelerator cable (or throttle cable) are still found in many vehicles. A rough-running engine is a real drag because you generally have to deal with misfires, stumbling, poor idle, etc. It sounds like you have a real bad vacuum leak (https://www.yourmechanic.com/article/is-it-safe-to-drive-with-a-vacuum-leak). It runs fine when held at a consistent speed. when i engage cruise control at 50 mph it smooths out. Personally I think alot of our issues may have to do with the quality of fuel we are using. I noticed this issue is very prevalent in warmer weather. But dont change these components until they have been inspected and found to have problems. Sometimes first gear from a dead stop feels like a kick from behind but if I give it enough rpms its usually pretty smooth. 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. The Front motor mounts soak up most of the engine vibration and last for about 10 or 12 years before they start to get Hi there. The gasoline clot stuck inside the gas tank, impedes the fuel to reach the engine. Was Told Why Is My Car Accelerating Slowly? I notice from 45 to 55 the rpm guage moves with flutter or rough running engine. However, sometimes car jerks when accelerating is a common problem faced by several car owners. You will also often hear a loud noise when driving at higher speeds when your car is suffering from a bad wheel bearing. When you put new plugs on, make sure you got the firing order correct. It Also Runs Roughly And Has A Constant Squeaking Noise, Like Its Coming From A Belt Or Something. Any Suggestions Thanks in advance. Air Filter is clean. 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. I had the injectors and throttle cleaned.