1990 Chevy Silverado Engine will not crank/will not start

Tiny
CH122417
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 4WD
  • AUTOMATIC
  • 19,600 MILES
Hello all,

I was hoping you could help me out. Recently my 1990 chevy silverado 1/2 ton blew a head gasket. I took it down myself and had my mechanic change everything out and get her running again. New parts included head gaskets, intake/exhaut manifold gaskets, new water pump and gaskets, new starter, new plugs, wires, distributor cap and rotor.

Took her home and all was well. She always started hard (4-5 cranks before motor running) but started none the less.

A week after the repairs I had problems. Started the truck and drove it about 15 miles, no stall, no idle issues, no hesitation. Stopped for a bite and came out 10 minutes later, engine cranked twice upon ignition then would not crank at all. The only thing I heard was the solenoid clicking. Got a jump and still would not start.

Had it towed to the shop where a heat shield was installed over the new starter. Started up cold fine, ran her 10 minutes and shut it off, could not start again. Engine cranked once than only the solenoid clicked, no start.

My battery was checked while it was running and it was being charged by the alternator. I bought a new battery however and returned the new starter for another remf. Installed both and checked cables (battey to starter and block ground), all good with no corrosion. Cranked 5 times and kicked on! Ran for 10 minutes, shut off and same problem. It cranked 2 times than only the solenoid clicked.

I tried turing the engine by had on the harmonic balancer. It turned tightly but did move on all occasions.

Today I tried to start it dead cold and it wouldn't even crank once, just solenoid clicking. My father thinks it might be an engine seizing issue (bearings/rings heating and expanding) but I'm not certain. Fooled with shimming the starter in place but still did not help. Don't think the flywheel teeth are shot but not sure.

Please help! I don't have a cent more to spend on this vehicle and need it for my work (contracting).

I appreciate any and all info/advice!
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Friday, September 12th, 2008 AT 12:58 PM

5 Replies

Tiny
RASMATAZ
  • MEMBER
Have helper hold key in cranking position -you look for power at the purple wire on the starter solenoid do you have it? If not test out the ignition switch and the neutral safety switch on the transmission.
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Friday, September 12th, 2008 AT 1:16 PM
Tiny
CH122417
  • MEMBER
Hi Rasmataz.

Thanks for yor insight, it was very helpful.

I am still having problem however. Today I pulled my alrenator and had it check at auto zone. It passed! When I put it back in my truck however the charge at the alternator (volts) only read what the battery was putting out, no more. As thg truck ran and the battery deceresed so did the voltage at the alternator.

There is a small boot that raises concern to me. On the back side of the alternator there is a slot with four small prongs. I only have one wire connected to the larger of the 4 prongs. The boot has been lost. Should I look around for a boot which could accomodate all four prongs? The wire I have hooked to the large prong currently is providing power. Do you think a specific 4 prong female boot will "excite" the alternator enough to have it release a current?

If the alternator test good at auto zone, then its working. Why isnt the charge being delivered to the battery?

Thanks again.
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Sunday, September 28th, 2008 AT 6:43 PM
Tiny
RASMATAZ
  • MEMBER
Review below charge system EWD


http://www.2carpros.com/forum/automotive_pictures/12900_c1_13.jpg




http://www.2carpros.com/forum/automotive_pictures/12900_c2_10.jpg

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Sunday, September 28th, 2008 AT 10:37 PM
Tiny
CH122417
  • MEMBER
Thanks once again for the schematic Rasmataz!

Im still having a dilema in finding the proper harness connector for the brown wire. The alternator (delco/remy-100 amp) has a female port with 4 male field prongs. I only have the one brown wire hooked to the larger of the 4 prongs. I need to purchase an adapter to compensate all 4 prongs.

Would you know where I could find one? Is there a special type I need or can I by a generic one that will fit. Ive looked through the internet, autozone and napa and still cannot find a specific adaptor.

Thanks again, Im going nuts here!
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Tuesday, September 30th, 2008 AT 7:53 PM
Tiny
RASMATAZ
  • MEMBER
Might want to check the local junkyard
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Tuesday, September 30th, 2008 AT 9:17 PM

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