89 GTA 5.7 TPI cold start stumbles
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Joined: Dec 1999
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From: Chicago, IL
Car: 1989 Trans AM GTA
Engine: 5.7 TPI - Stock
Transmission: 700R4
89 GTA 5.7 TPI cold start stumbles
Hello, I have a 1989 GTA 5.7 with a cold start hesitation and stumble problem but the car is fine when its warmed up or after 15 minutes of driving/idling. This problem happened 4 months ago and went away but now its back.
Here is the scenario, I will start the car and it will be fine but all sudden the RMP will be jumpy from 600-1200. As I start to pull away, the car will quit. As I am rolling at 30mph, I give it gas and the RMP will go down and I have no power like I am coasting. The car will quit if I dont put it in park at a complete stop but everything is fine once its warmed-up. All the problems gone.
It has a new fuel pump, fuel filter, new spark plugs/wires, fuel pump relay, ignition cap/rotor and EGR valve. Distributor and injectors are 6 months old. TPS and timing adjusted.
All thanks to those that can help.
Here is the scenario, I will start the car and it will be fine but all sudden the RMP will be jumpy from 600-1200. As I start to pull away, the car will quit. As I am rolling at 30mph, I give it gas and the RMP will go down and I have no power like I am coasting. The car will quit if I dont put it in park at a complete stop but everything is fine once its warmed-up. All the problems gone.
It has a new fuel pump, fuel filter, new spark plugs/wires, fuel pump relay, ignition cap/rotor and EGR valve. Distributor and injectors are 6 months old. TPS and timing adjusted.
All thanks to those that can help.
Last edited by CC; Jun 20, 2003 at 03:49 PM.
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