I have a 1988 gmc truck 4.3 engine and about 2 weeks ago I pulled up to
a stop sign and it quit running it was about half way warmed up, so I
turned the key off and it restarted but it was running kind of
I noticed the voltage was kind of low so because the battery was
kind of old I got a new one and installed that and did not have any
more problems that day or evening and I started it many times.
The next morning I went to start it and it would start and run for
a few seconds and quit, so I had a can of starting fluid and had my
son turn it over and when it tried to stall just gave it a
tiny squirt of starting fluid and after it warmed up a bit it ran
I kept having the starting problem so I took it to the local
mechanic and he found the alternator was not producing enough
voltage so he put on rebuilt.
Voltage is now normal still had the starting problem.
Then checked the fuel pressure and found that is as going below specs
intermitently and so I had another valve body that he put on, that
fixed the fuel problem at the time and it started good.
Went to pick it up and it ran kind of funny and the next morning same
I drove it yesterday and was going down the freeway about 70 mph and it
just quit but restarted again, and I am still having the starting
It takes about 5-6 times starting before it will run and if it sits
longer than about 2-3 minutes
it takes about 2 times to make it run.
I have put on a new temperature sensor, and I tryed a used computer
from a junk yard same problem.
I had a new fuel pump put in about 70,000 miles ago. because of lack
Code readers do not show anything and the light does not come on.
Can someone please help!!!!!!