5TQ Stalling

[auditude at cox.net]

On my '88 5kcstq, when I just bought it out of state and was driving it with my then-girlfriend, it was doing something just like this.  I found it quite frustrating.  Eventually, after driving it 400 miles home without a problem (thank God!), it died completely and wouldn't restart.

After replacing the fuel pump needlessly, searching for vacuum leaks, and finally breaking down and paying a mechanic some bucks to diagnose and fix that and other problems, it went away.

Supposedly the culprit was the fuel pump relay, and the connections underneath the fuse box.

I can't explain the relationship with deceleration, but there you go.

Ken

Dr. Ian McArthur sutul at telusplanet.net wrote:

<<One of my 5TQ's is stalling when decelerating to a stop.  The car starts
again just fine.
I have checked the decel valve and tried running the car with the decel
valve disconnected (electrically).  It still stalls.  Idle speed is 750 rpm.
Does anyone have any suggestions?
Thanks
Ian>>