1990 Chevy Silverado missing

Tiny
SCHIFF62
  • MEMBER
  • 1990 CHEVROLET SILVERADO
  • V8
  • 2WD
  • MANUAL
  • 116,000 MILES
I am having a problem with my truck when I first go through the gears. It seems like it is missing unitill I go through the gears the first few times. Once I go through about three or four times it seems to even itself out and run fine. I have already changed the plugs, wires, cap, rotor, fuel filter, and also the air filter. I thought it might just be some bad gas or possibly the injectors so I have put some injector cleaner in the fuel tank but I still have had no relief. Not sure what the problem is. I was wondering about the timing but I figured it would be doing it all the time if it was the tming. Also do you think it could be the fuel pump?
Monday, September 22nd, 2008 AT 9:04 AM

3 Replies

Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Not very likely. Does it smoke on start up? Use any oil? Coolant? Could be bad valve seals oiling a plug or two overnight and causing it or a very small head gasket leak putting a small amount of water into the cylinder overnight
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Tuesday, September 23rd, 2008 AT 7:52 AM
Tiny
SCHIFF62
  • MEMBER
  • 2 POSTS
Im sorry to waste your time. I feel extremely stupid right now, after changing the plugs and wires I didnt think at that point to check the coil. When I pullled the air cleaner assembly off to attempt to check where I would test the fuel lines on the truck I noticed the the coil was discolored and had been arcking. Sorry guys spark this one up to stupidity but thanks for the help anyways.
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Tuesday, September 23rd, 2008 AT 9:23 PM
Tiny
2CARPRO JACK
  • MECHANIC
  • 11,533 POSTS
Im just glad it was something simple and not where this could have headed.
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Wednesday, September 24th, 2008 AT 9:34 AM

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