Hedge
New Member
- Joined
- Sep 2, 2005
I have had my 87 GN for about a year. I just had the tranny rebuilt which works great but now that I can floor the gas pedal I am noticing another problem. The car seems to run fine until about 4k rpm then it seems to hit a brick wall. The RPMs don't climb and the car will not shift into 2nd. When I let out of the gas about 25% the RPMs climb a little and it shifts into 2nd. Then the same scenario repeats itself for 3rd gear. It sounds like the car is trying to go but it is not actually going anywhere. So far I have replaced the plugs, wires, air filter, and fuel filter. Any ideas on what I migth replace next? I can't tell how much boost the car is running because the stock boost gauge maxes. However the problem starts to occur at about 11 - 12 psi on average. Thanks for your suggestions.