I have a car that was recently re-done. It has a 383 stroker motor, holly carb, 2400 stall converter w/ lockup, MSD ignition/distributor, and a 200r4 transmission. There is less than 10,000mi on the motor/transmission. I'm wondering if you have some insight on this and could point me in the right direction to fix these symptoms:
1) When the car is started cold, the fuel pressure stay steady at 8 when in park. After the car has warmed up, the fuel pressure jumps from 6.5 to 8 (bounces from 6.5 to 8 every second).
2) Whether or not the car is warm. The RPM stays steady at 1,000 when the car is in park. When the car is in drive (w/ the brake engaged) the RPM stays steady at 500 when the car is cold. It jumps between 500 and 1,000rpm when the car is warm and in drive normally stays around 750 when 75% time. Every 10 seconds it'll jump to 500, the car will stutter like it is about to stall.
3) The car feels like it shifting to early for the speed, would that be a carb adjustment?
4) When shutting off the car, there is a sound that could be described as a cranking/knocking/grinding sound. This is as soon as I turn the key and it stops within 4 seconds. This sound only occurs when shutting the car off when warm. If the car's only been running for ~2min and I shut it off, there isn't a sound.
There isn't any weird sounds or problems when driving (except the feeling that the shifting is occurring about 5-10mph earlier than it should).
1986 Monte Carlo SS
have the same problem?
Tuesday, June 21st, 2011 AT 11:09 PM