My 1998 buick century is jerking and bucking very bad!!!
What is your question?
So at first my car started jerking very bad after a 2 hour trip right after replacing my starter which was never bad I just figured I'd replace it bc it was old when accelerating from 0-45 mph it would jerk very bad and then just lose power I had the codes for camshaft sensor and crankshaft sensorso I replaced the cam shaft sensor and both codes disappeared I also cleaned the egr valve passageways , cleaned the throttle body and maf sensor a month before all this I replaced the fuel filter, replaced spark plugs and wires and did a fuel system cleaner also dropped the trans pan and replaced filter and gasket it ran fine for a few days and now it's jerking at higher speeds and seems like it wants to cut out now I can't drive over 45mph without the car bucking and jerking all over the road what is my issue please I need help I work on cars but am not an expert
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Sounds like you do pretty well working on your Buick. I don't think the starter has anything to do with the bucking and jerking. I would check the spark plug wire connections, make sure the connect spark plugs are installed and then check for loose vacuum hoses.
All vacuum hoses seems fine, spark plug wires are tight and snug?? I just don't understand what it could be I love this car ... But can't drive it right now because I feel unsafe driving it I dont believe it's a fuel pump issue .. Could it be the fuel pressure regulator?, O2 sensor?, crank shaft sensor ? Bad maf? Transmission?
It is probably your mass air flow sensor. You can open the hood and unplug the sensor very easily. Once you have done this start and drive your car, It will amaze you that, that little part can cause such big problems. I only know this because I had the transmission rebuilt, changed the plugs and many many more things and then replaced the maf and boom, there it was.
Update on the situation I replaced the fuel pressure regulator and it ran fine for 5 days now the jerking is getting worse, while accelerating at low speeds car jerks and shuts off, I will unplug maf and see what happens
All vacuum hoses seems fine, spark plug wires are tight and snug?? I just don't understand what it could be I love this car ... But can't drive it right now because I feel unsafe driving it I dont believe it's a fuel pump issue .. Could it be the fuel pressure regulator?, O2 sensor?, crank shaft sensor ? Bad maf? Transmission?
It is probably your mass air flow sensor. You can open the hood and unplug the sensor very easily. Once you have done this start and drive your car, It will amaze you that, that little part can cause such big problems. I only know this because I had the transmission rebuilt, changed the plugs and many many more things and then replaced the maf and boom, there it was.
Update on the situation I replaced the fuel pressure regulator and it ran fine for 5 days now the jerking is getting worse, while accelerating at low speeds car jerks and shuts off, I will unplug maf and see what happens