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1999 Silverado just quit
08-07-2016, 05:58 PM
Post: #1
1999 Silverado just quit
I have a 99 Silverado that I was driving down the street and it just died. I'm disabled and on a fixed income so I would really appreciate someone who could talk me through this. I can hear the fuel pump come on and pressure up but haven't checked for fire yet.
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08-08-2016, 06:17 AM
Post: #2
RE: 1999 Silverado just quit
You're on the right track. Checking for spark is the next step. Let us know what you find.

Thanks for using the forum,
Garner

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08-08-2016, 11:06 AM
Post: #3
RE: 1999 Silverado just quit
Just a few pointers...

A bad ignition module is common enough on the Vortec engine but a bad coil is even more common, along with an arcing coil wire. Be sure to inspect for spark at the coil while checking things because even a leaking / arcing coil (carbon track) will show at least some spark and that eliminates a bad ignition module. Coils are cheap enough but a good set of OEM wires will make your wallet shrivel, even from Amazon.com. (over $100) That flat top distributor cap is pricy as well but aftermarket caps fail early so avoid them.

That said, just because you hear the fuel pump run doesn't mean you have enough fuel, although a running pump will seldom make the engine quit on the road. Fuel pressure needs to be 55 psi if all is well, although once started the engine can run on anything over 40 psi, but it will start VERY hard cold.

BTW, if you are over 125,000 miles you likely have a fuel pump failure lurking. That "tank unit" comes complete with the gauge sending parts and retails for around $500 plus labor. Again, Amazon.com or Rock Auto (on line) may be your friend here at under $300 for the new part in Delco / Delphi brand.
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