Cold Start Problems... 96 C4
Thread Starter
Instructor
Joined: Dec 2003
Posts: 105
Likes: 0
From: manahawkin nj
Cold Start Problems... 96 C4
I have a 96 LT1 C4 at the shop that is having a cold-start problem.
At first the starter pinion was seizing on its shaft and not engaging properly, so the starter was replaced with a new GM unit. That problem solved.
However, even after the starter replacement I'm still getting a cold start problem.
The fuel pressure stays steady at 38psi on start up and the IAC goes from 155 and drops sharply to 90 counts...
Any other suggestions?
At first the starter pinion was seizing on its shaft and not engaging properly, so the starter was replaced with a new GM unit. That problem solved.
However, even after the starter replacement I'm still getting a cold start problem.
The fuel pressure stays steady at 38psi on start up and the IAC goes from 155 and drops sharply to 90 counts...
Any other suggestions?
Burning Brakes
Joined: Feb 2000
Posts: 824
Likes: 2
From: Camden SC
Re: Cold Start Problems... 96 C4 (steelwindmachine)
When a fuel injected car has cold starting problems, I usually head for things that measure temperature. The Engine Coolant Temp (ECT)sensor is supposed to send an accurate reading to the ECM. The ECM will then create and rich or lean condition based on that reading. I would connect a scanner and read the ECT reading. Assuming a cold engine, the reading should be close to ambient temp. The ECT and ECM act as a "choke" system for a carburated engine.
Let us know.
dlmeyers 90 coupe zf6 3 speed shocks
Let us know.
dlmeyers 90 coupe zf6 3 speed shocks
