1998 GMC k1500 5.7ltr starting

1998 GMC C1500
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HARLEYLR87
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Hi all.

I have a problem starting my truck.

Specs: 1998 GMC Sierra SLE 5.7 Auto Tranny 4wd
140k mi a/c

Symtoms: Engine will not start when it has been sitting for an hour or more. Once running its like new. No loss of power, gas miliage etc.... Will start up with just a short turn of key after shut off. On warmer days I can get it started after several cycles of turning key and fuel pump charging the system, otherwise I have to give a short squirt of starter fluid down throttle body and then every thing fine.

Recent repairs:(past year): fuel pump/ filter and pressure sensor at tank, distributor, intake manifold gasket, water pump, alternator, and recent general tune.

Any insight would be of help
Sep 14, 2007 at 12:36 PM
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DANIMALGMC
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  • 33 POSTS
If starter fluid makes it start up just fine then I think it is definitely a fuel delivery problem.
Check the fuel pressure regulator (50ish psi), change the filter again (I had one clog on me after 5000 miles).

This is a strange one.

Good Luck
Sep 19, 2007 at 7:49 AM