5 Symptoms Of A Bad Car A/C Condenser and Replacement Cost. Anonymous Nothing is coming up on my panel and I dont want it to get worse. You can also hear as the engine stutters from inconsistent fuel intake. $700 later til jerking. Theyll be able to diagnose the trouble code further in order to pinpoint and fix the issue. If there are any remaining codes, please post them here. Accumulated Moisture. Luckily, the problem will go away once the water is gone, but repeated moisture buildup can tax your engine over time. YourMechanic All rights reserved. Certified Automotive Diagnostic Technician. 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. Running lean (says codes also no backfires out exhaust) When it comes to unbalanced driveshafts, it can be very difficult to determine which driveshaft is causing it, and therefore it may be wise to get help from someone who has dealt with these problems before. If your car wobbles, it is usually due to bad suspension bushings or a bad wheel alignment. 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. This can happen due to an improper air-fuel mixture in the engine. I have a 99 Pontiac sunfire with a 2.2L. You may have some air trapped in the fuel lines which should work itself out. I took it to the mechanic's and he found and fixed a leak in the intake manifold. I Changed The Air Filter Changed The Oil And Did Spark Plugs With Wires, Car Was Running Nice With Good Power No Why is my check engine or service engine soon turned on? YourMechanic All rights reserved. Check the condition of your air filter. I had two bad COP's (cylinder 2 and 3). RELATED: Wheel Bearing Noise Causes & What Does It Sound Like? Unless you are constantly watching your speedometer (instead of the road), your speed is probably going to drift up and down a bit. Shut the engine off, even just long enough to fuel-up, and it starts up and runs fine again in every respect. Comment Flag If you drive an automatic transmission car and notice your car jerking or bucking right around the time your transmission changes gears, you may have a faulty transmission controlmodule (or solenoid). Unit 18 Section 2 : Calculating speed, distance and time - CIMT Thats an interesting problem. Always endeavor to refill the power steering reservoir and tighten any loose steering component. Typically for each Bank of exhaust there is one catalytic converter. The scan test showed code P0989. The fact that it starts up is a good thing. 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. It will eventually. Lets find out! I would find a new mechanic and get the car scanned to see what exactly is causing the engine light to come on. What are the common problems for this to happen is it normal!!! 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. It might be blocked; you will need to take it to the mechanic. 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. This will also make your drive rather rough, as you'll feel every bump and crack in the road. That would be a great place to start. It is certainly possible that the (pre-cat) O2 sensors were leaning the engine out. It can also happen due to misfires caused by worn ignition parts. 9 Causes of a Rough Idle (or RPM Running Too High . Generally oil in the coolant is a sign of a blown head gasket. Here is a more detailed list of how to fix a car thats shaking while driving. Dirty Fuel Injectors. SOLVED: 1996 buick LeSabre runs rough at 50 mph - Fixya Hesitation at around 45 to 50 MPH when you go to accelerate Hello, I started getting a hesitation/bucking in my 2001 F150 SCREW 5.4L 96,000 miles. In fact, there are many possible causes of car shaking. From what others have said the CEL is a little slow to throw a code for misfire. Could be an issue with one of the accessory pulleys or belts too I suppose, or maybe even something inside the engine. We will be happy to assist you. 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. This is a quick and inexpensive repair. Can you describe the noise youre hearing? If it wasnt running at that time and water just got in the exhaust system, you should be fine after a while. Read on! Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. Be sure to take it to a trusted mechanic to ensure the replacement is done right. If you dont remember the last time you replaced your spark plugs, it may be a good idea to get them all changed out. Therefore there should be two catalytic converters total on the entire vehicle. Anyone have an idea what else it could be? Hesitation at around 45 to 50 MPH when you go to accelerate Your cars air filter is the first line of defense against dirt and other foreign particles. Posted by Anonymouson Sep 28, 2008 Want Answer0 A dirty air filter will allow some particles to get into the engine, which in turn will affect performance and cause jerking. For instance, look at fuel trims and air fuel ratio to see if youre running excessively rich or excessively lean. 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. One of the most obvious signs that your engine has a problem is stuttering while. P02240 oxy sensor P0300 random misfire. I notice from 45 to 55 the rpm guage moves with flutter or rough running engine. When turning left,then back straight after a minute or more the left wheel turns right on its on,then straight again.it Only when I turn. 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. I dont know. It Seems To Make A Clunking Noise Through That Rpm Range When Slowing Down. While driving approximately 45mph the car suddenly started running rough and lost all power. Any suggestions? Having the throttle body cleaned as and a fuel induction service may help as well. But it still does the same. It looks like you have a bad computer, the Quad drivers for cyl 1-4 failed, you're loosing injector pulse. The dreaded engine surge | 2012-06-20 - Auto Service Professional [SOLVED] Car Starts Rough Then Smooths Out - The Grumpy Mechanic Please what can I do after changing airflow meter and theres no change. I am running out of ideas also when I hit the gas hard I get black smoke. Youll also want to make sure the power steering fluid is full and look for any leaks around the driveshaft boots, which could be a sign of a bad CV joint. My neighbor's trick to get the CEL to go is to hold in the brake and give it gas (almost as if you were to do a brake stand) and the truck will start the missing under load so you can get the codes. It is also possible there is a fuel supply issue: clogged fuel filter, weak fuel pump, fuel pump relay with burned contacts, or a fuel pressure Hi there. Vibrations that come in and go out repetedly at the same speeds or conditions are normally drive train related and the most common are drive shaft or U joint issues. 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. V8. I was told that it was 3-4 clutch and I need to have the trans repaired. Seat with scanner hooked to the car, as your driving he can monitor all outputs and inputs to the computer, when the problem shows up he can use the scanner to take a snapshot of the readings, and you will be able to see whats failing.I have never had 3-4 clutches do what you're describing without failing altogether shortly thereafter.I have a 90 Z-71 pickup that the 3-4 clutches shuddered upon entrance to a highway 15mins later I was calling a towtruck and it only did it once. Tires need to be replaced occasionally because they are made of rubber that will get old with age and begin to crack. Few things are more annoying than a car that shakes when driving at higher speeds, especially when going for a long road trip. 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. If they are too high, they may warp out of shape, will wear away faster at the tread, and, if high enough, may actually blow out. Air filter tune up this and tune up that. I bought a new fuel filter, spark plugs, coil parks. Im not sure I understand. Balancing the wheels is often not that costly and will solve a shaking car in many cases; however, you may want to inspect the other things first also. 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. Car jerking is a common problem with many different factors that can contribute to the cause. when i put in cruise control it smooths out. Over time, they will wear out, and this will create play in the bushings and ball joints. Check for codes and see if you have one that says Cylinder X Misfire, where X is a cylinder number. You may need a new EGR valve and other EGR components. Sometimes first gear from a dead stop feels like a kick from behind but if I give it enough rpms its usually pretty smooth. Thankfully, many of these symptoms can be diagnosed and remedied without specialty equipment. Oil lubricates the engine, and is an essential part of your vehicle. If I let it idle for a few minutes it would eventually pick up and would be OK for the rest of the day. 5 Reasons Car Won't Accelerate but RPMs Go Up Automatic i took the car to auto zone and the device gave codes saying all 4 cylinders were miss firing. Q: Car is running roughly at around 45 mph - YourMechanic Are you saying the jerking occurs when you hit 3,000 RPM? . I found my 02 beginning this same problem intermittently at about 37k. 5. 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. Just visually inspecting the axles is usually a no-brainer because the differences are too small to see with your eyes. 6. A rough-running engine is a real drag because you generally have to deal with misfires, stumbling, poor idle, etc. Over time, your car tires lose balance, causing vibrations. Hesitation / Misfire / Bucking at highway speeds - no codes