wont start

GMC SIERRA
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KHONSCHEVY
  • MEMBER
  • 2 POSTS
i have a 1986 gmc sierra with a 305. engine rotates strong, but will not start. i sounds like its firing or almost going to start but will not. it has a new fuel pump and filter. it has all new ignition system(distrubuter, rotor, and cap). i think that the timing is not perfect but it should be close enough to start. it did this last week and i checked several things but didnt change anything, and it started and ran all day very well. the other day the engine just died wont start. any advice would be greatly appreciated.

thanks

khonschevy
Apr 21, 2007 at 6:32 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
When it refuses to start look for spark immediately -nonexistence-could be CPS/Cam PS. and a weak coil.
Apr 21, 2007 at 5:50 PM
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KHONSCHEVY
  • MEMBER
  • 2 POSTS
thanks, how do/can i test those items and where are they located? I checked the coil with an ohmeter and it seemed ok.

thanks
khonschevy
Apr 22, 2007 at 12:00 AM
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