help guys, I got off the highway and stopped at the gas station to get a Pepsi, I walk back out to the truck and try to start it, it turns over but won't start, I didn't notice anything before I shut it off, any ideas?
the truck is an '88 GMC fullsize longbed, 305 with 109,000 miles
09-05-2003 01:14 PM
See if it's getting gas at the carb and if it is try seeing if it has spark at the plugs.
09-05-2003 01:15 PM
Did you try sarting the truck after the engine had ample time to cool??
09-05-2003 01:21 PM
1) its got EFI
2) I let it sit and tried to start it 5 different times
09-05-2003 01:58 PM
as nasty as the stuff is, spray some starting fluid into the throttle body and try starting it, if it kicks like it wants to start then it's fuel related (pump, filter, no gas) if it does nothing but turn over then it's ignition (no spark) or mechanical (timing chain)
09-05-2003 02:06 PM
Like the others have said, you’re not getting a spark, gas, and air. It is one of those three.
Pull the air filter completely out. If the filter is clogged it will choke a warm car.
Check for spark at a plug. Ether you have it or you don't.
Shoot some starting fluid where the air intake is. If it starts, you know the issue is fuel.
Once you know which of the three it is, let us know and we can trap the issue.
09-05-2003 02:31 PM
If you have spark Have someone crank it and hit the bottom center of the gas tank with a hammer , may get the fuel pump running long enough to get it home , if it is the pump, we do this all the time to move vehicle's in to the shop and this is the first thing we check on a no start like this, sounds funky but it works most of the time if its the pump. If no spark check the coil we change a lot of coils on the GMs .
09-05-2003 03:07 PM
Try changing the module in the HEI distributor,I had just the same problem and doing that worked.
09-05-2003 03:44 PM
one of three things most likely. fuel pump, coil, or module in the distributor. One of these three things should work
09-05-2003 04:29 PM
we towed it home, and it started right up :eek: so we're befuddled!
09-05-2003 05:26 PM
I was thinking module as well;)
09-05-2003 08:39 PM
Since it started after you got it home, I would suspect the fuel pump relay. Had an Oldsmobile that had the same problem then mysteriously started the next day. Happened a few more times before I discovered the bad relay.
09-05-2003 08:43 PM
we're just gonna replace the whole pump and call it good, thanks for all the help guys