richthofen
11-07-2009, 06:47 PM
I had a thread last week about the hesitation but I figured, different issue new thread---the hesitation issue was fixed by disconnecting the O2 sensor (will replace when I can get one, on order) but the car still runs like total crap. I have replaced, at this point, the plugs, plug boots, coil housing, and fuel filter, as well as run some seafoam through it today (only got 1/4 can down the intake before it cut off--that should be enough to help, right? 1/2 can in the tank as well).
And still, it idles really rough/shaky and feels like it wants to die at stoplights. Holds around 600 RPM but it shakes and bucks; also, often times when braking to approach a stoplight, just before I come to a complete stop the RPMs will dip down to about 400 and the car will shudder really hard, before coming back up to idle. It's worse once the car is warmed up, and worse in drive, though still not good in neutral or park. It has kind of a chugging sound to the idle that makes me think it could be missing still, but the coils were voltage tested when we had it apart and tested good. I used bosch plugs without knowing any better--should I yank them and replace with better plugs, and if so what? Thanks...
And still, it idles really rough/shaky and feels like it wants to die at stoplights. Holds around 600 RPM but it shakes and bucks; also, often times when braking to approach a stoplight, just before I come to a complete stop the RPMs will dip down to about 400 and the car will shudder really hard, before coming back up to idle. It's worse once the car is warmed up, and worse in drive, though still not good in neutral or park. It has kind of a chugging sound to the idle that makes me think it could be missing still, but the coils were voltage tested when we had it apart and tested good. I used bosch plugs without knowing any better--should I yank them and replace with better plugs, and if so what? Thanks...