Q&A

This problem needs a diagnosis, not more guessing. Throwing parts at it is a waste of money and you actually may be adding new problems that will need to be addressed. I'm curious, how much money have you spent on trying to fix this problem?

Did you try pulling the trouble code get the diagnostic.

I konw for sure its miss fiering. The crank sensor is fulty, there is a tech tip when you replace the crank sensor to the up grade sensor the check light will blink, drive the vehical to 70 mph then let off the gas let it drop to 20 mph then stop. turn the key on then off twice with out starting the vehical that should stop the problem. this is to have the comp. to learn the miss fires........it happen to me .......hope it will make your problems a thing of the pass.

My 2000 SLT V8 was having the same problem until I replaced the ignition coil. Cost was reasonable at $157.00

If ur fixing urself and guessing then id change crankshaft position sensor 1st. Then id think about camshaft position sensor.