car runs rough at 45 mph car runs rough at 45 mph

Replacing the fuel filter is a fairly simple and inexpensive process. Our certified mechanics come to you Backed by 12-month, 12,000-mile guaranteeFair and transparent pricing. Have Done A Full Tune Up And Changed The Fuel Filter. 2 days later when I picked up my car it drove good around town but when I got on the highway it started doing the same thing. Depends how submerged the car was. I have a 2004 Serena when i drive slow or fast i am getting a jerk. Trouble starting, misfires, dies when you let off the gas. It loses power once I step on accelerator pedal and it jacking. What happened was I pulled mud threw my intake and went into the third cylinder and it started missing. Worn Out Spark Plugs. But dont worry its not always a sign of something serious. Having the throttle body cleaned as and a fuel induction service may help as well. Its job is to measure the amount of air entering the engine so it can relay this info to the cars computer. The most common cause of why a car loses power when accelerating is a clogged fuel filter or engine air filter. I had the Plug and nusel changed a few months ago and the mechanic said there were no shavings in the fluid so the transmission is good. Cheapest and fastest thing to do first. You can also hear as the engine stutters from inconsistent fuel intake. It could be some weird transmission programming or it could be an issue with one of the internal components in the transmission itself. I will start the car again and it will move and same thing happens, is with the mechanic. Therefore, when it comes to issues like a shaking car, it is often worth taking your car to a mechanic instead of replacing all the parts in your car without doing a proper diagnosis. 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. I am lost. I have a Sharon VR6 although a Passat engine with sensor. After you have inspected the brake rotors and wheels, you need to inspect the suspension for any damage. I drive a Polo vivo 2012 model. My first thoughts were Fuel Filter, and Catalytic Converter. Flat rate pricing based on labor time and parts, Hand-picked, community-rated professionals, Trusted mechanics, rated by thousands of happy car This is a common and annoying problem that can be responsible for a variety of issues. I dont see how a bad radiator or thermostat would cause the issues youre describing. It only happens over 40MPH and sporadically. If one of the tires that do the traction is a different size or diameter on one side or the other, the car figures that you are losing traction on that side and reduces the engine RPM's as mentioned and does not let the car go any faster than 15- 20 MPH. It loses power once I step on accelerator pedal. If you pull each of the spark plugs, see if any of them look wet or burnt. Its most likely a misfire. One big thing to note is that water and electronics are a bad combo so there may be some electronics damage including sensors. It doesn't matter if the car is in 3rd, 4th, or 5th as long as it is above 80km/h 50mph. I had the injectors and throttle cleaned. (Updated on August 24, 2022) When your car is experiencing a rough idle, your engine may chug, vibrate, or shake while it's running. If any of your driveshafts are bent or damaged due to hard driving or just wear and tear, the car will start shaking. You made the right assessmentits not the octane. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? I have KIA CLASSIC its front wheel, no power steering in it. However the vehicle is still running roughly around 45 mph, when I normally increase the speed. Spark Plug. Over time, this accelerator cable can wear out. P0138 OBD-II Trouble Codes: O2 Sensor Circuit High Voltage (Bank 1, Sensor 2), P0412 OBD-II Trouble Code: Secondary Air Injection System Switching Valve A Circuit Malfunction, P2158 OBD-II Trouble Code: Vehicle Speed Sensor 'B'. 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. While not a common point of failure, its worth considering while you troubleshoot. Read on! 6 Symptoms Of A Bad Alternator and Replacement Cost, 5 Symptoms Of A Bad Car Thermostat and Replacement Cost. The only thing that worked, albeit temporarily was a spark plug replacement. A bad or dirty spark plug can prevent this proper ignition and will cause the engine to misfire. 3L with a misfire problem. Besides the jerking, other symptoms may include a rotten egg odor (hydrogen sulphide), a drop in the cars fuel efficiency, and the check engine light may come on. He said flow senors. This mainly occurs when you have the car parked outside overnight. Alternatively, you can purchase a reusable air filter such as a K&N which allows for future cleanings instead of replacement. First Id scan for codes to see if that gives you any indication of the issue right away. I'm afraid my tire is going to fly off or my drive shaft is going to drop. More information: 7 Symptoms of Bad Brake Rotors & Resurface Cost. about what this is associated with this notorious light, what it is used for and I was beginning to think I was losing my mind. However, more often than not, the problem is with the timing components. Luckily for me it was only spark plugsHope this help, Try premium fuel if your not using it. Therefore, if you experience that your car shakes while driving and at the same time you have a check engine light on the dashboard it is definitely time to read the error codes from the engine control unit. Blocked Fuel or Air Intakes. A damaged cable requires immediate attention, as the car can stop functioning when the cable breaks. The car is still doing the same exact thing. 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. Changed spark plugs, plug cables and trans filter. The next best technique is to use an arosol spray such as brake cleaner. If the brakes have been applied, heat will be conducted from the rotor to the wheel and thence to the lug nuts. Related: Car Jerks When Braking or Idling. Basically - part throttle, light load, slight grade or hill. It could just be an unbalanced tire, which is often not that serious to drive with, but it can wear out suspension parts in the long run. Now the vehicle is convulsing/shaking. My car shakes from 60kmh and below in a smooth road above that it's ok ,what could be the problem? Misfiring Cylinder after replacing the plugs three months ago. The fact that it starts up is a good thing. Fixing this problem is as easy as replacing the bad plug. Are you up to date on all of your maintenance? 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. Good evening! Luckily for me the new mech was cool enough to replace the misfiring plug for 10bucks. Was this resolved, am facing the same problem with my Audi A3. when i engage cruise control at 50 mph it smooths out. Sometimes it feel like the car is being pulled back when i am pressing gas. Luckily, the problem will go away once the water is gone, but repeated moisture buildup can tax your engine over time. Then you need to balance the tires and the only thing you can do is with a wheel balancer machine. To me a few times before but i titend my battery cables and it stopped jerking but this time it has not stopped only worsened and now my check engine light and a wrenh light is on also now I have to jump start my car every time I leave can someone help please? Make sure the terminals are free of corrosion and the battery cables are tight. Now the mechanic is out of ideas he says its an ECU. I am running out of ideas also when I hit the gas hard I get black smoke. So whether youre dealing with a shaking car while driving at high or low speeds, weve got you covered! However, if the car doesnt shake more when you press the brake pedal than when driving normally at higher speeds, it is not very likely that it is due to bad rotors. If the whole car shakes a lot more when you press the brake pedal, it is very likely caused by the rear brake rotors. A deficient spark plug causes the engine to misfire, making your car jerk when you accelerate. Your cars rear view monitor system is designed to provide you with greater safety in situations where you need to see behind the car when backing up. Faulty brake rotors are another thing that can cause vibrations and shakes while driving because the brake pads are always pushing slightly against the brake rotors. It could be a lot of things. Engine, transmission and rear end issues are usually more constant but can increase or go away under acceleration or decelleration. Have you gotten the car scanned for trouble codes yet? However, if your car still shakes when you let off the throttle or put the car in neutral at higher speeds, it is more likely that unbalanced wheels or a bad wheel alignment are causing the problem. Use a scan tool that gives you live data and check some of the engine parameters. No check engine light but they were able to find the misfires one at a time by looking in the memory. Flat rate pricing based on labor time and parts, Hand-picked, community-rated professionals, Trusted mechanics, rated by thousands of happy car Any idea what could be going on? 1999 Chevy Camaro 40 Psi Starts Butt Shuts Off Some Days Runs Rough 4 To 5 Mins Shuts Off Codes P0300 P1514 I Am Stuck Up The Creek With No My Car Runs Rough Between 1300 And 1500 Rpm's. However, seeing warped brake rotors with the naked eye is in most cases impossible, but you can still inspect them to see if they are very rusty which can be a strong sign that you need to replace them. Jerking or Bucking when accelerating of any Nissan is most often cause by a silent failure of the Crankshaft Position Sensor. Here well go over the most common culprits and how to fix the issue. A co worker of mine had her car jerking, and she wasnt able to get it over 15 mph, up hills it had trouble with the gas pedal floored. This may give you a clue as to what is going on. What I did was I cleaned the entire throttle body with a spray called throttle body cleaner and it runs like new. Having turned wrenches on vehicles for over 18 years, Mark has a passion for cars and writing about them. A car starts out rough and then smooths out because of any of these four reasons: Vacuum Leak. When the sensors detect the car is too low, they turn on a pump that fills the bags with air to bring the car to the proper height. My car has 163000 miles. Brlow 45 mph the car runs great. The fact that the car is jerking makes me thinking is was being driven through water. guides, Check cars for recalls, common issues & maintenance Lift the wheels up from the ground and try to pull the wheels in all directions to see if you can feel any play due to worn bushings or other suspension parts. Do you know where the noise is coming from? Ocassionally this problem begins to show itself after idling for a few minutes. The car looses power the more you press the accelerator and it jerk. It can also be caused by a damaged sensor disturbing the air-fuel mixture like the MAF sensor or O2 sensor. You want to find and fix the problem as soon as possible before it gets worse and costlier to fix. Make sure all spark plugs were torqued correctly inside the head. If so, what codes are stored? On this episode we reveal a common source of faults that can cause a rough idle or at times a stalling condition, and. Car out of cruise control flutters or runs rough from 45 mph to 55 mph and once over 55 mph runs smooth. You can usually see damage to the cables outer coating when examining it, making this problem easy to diagnose. I replaced spark plugs all but number 3 today didn't change anything, change tps nothin, changed air tempature sensor and no change. Hi I have a 1998 Honda Civic coupe dx my car keeps jerking at a speed to 30mph to 40mph and my car does not pick up the speed until about a good 20mins and still doesnt accelerate like its supposed to and cuts off in the middle of driving my car I put a new radiator in and I put new spark plugs in it and it just started to act like that after I drive from Marion to Columbus I got there and I went in the store and come back out try to start it it started but cut back off then I started it and I put it in reverse remind you my whole car is jumping engine is jumping crazy before i got there it was fine and it was fine when I purchase it 2 weeks ago then outta nowhere its been acting like now and only had my car for 3 weeks now.