1989 Pontiac Grand Prix LE
2.8-liter V6


My '89 GP has a strange electrical problem, here are the symptoms...


1. When you turn on the ignition, the cooling fans runs.

2. When the fan stops running, you're then able to start the engine.

3. If the hood is open, and you close the hood while the engine is
running, the engine will immediately stall.

I've consulted several people about this, and so far, I've replaced
the cooling temperature sensor, which seemed to work, until I closed
the hood. Another person suggested that the problem is the "electric"
or "ECT" relay (which is being affected when you close the hood).

Most people are totally stomped! Anyone here have any suggestions?

"Alan" <x@x.x> wrote

Does the fan still run with ignition on after you changed the sensor?

"Chevguy" <gro34wser (AT) hotmail (DOT) com> wrote

vibration. It could also be a broken wire. The only suggestion is start
doing a test to see which wire is broken or loose. Do you have an OHM meter?
This might take hours to track down.
>

Chevguy and Les Benn, thanks for the replies. I'm no longer repairing
that car because it's been sold.