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1998 GMC Jimmy Died, no start no spark, have good fuel pre

Tiny
PESCADO63
  • MEMBER
  • 1998 GMC JIMMY
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 190,000 MILES
1998 4x4 jimmy 4.3 engine. For months would drive along and stall, wait a few minutes start back up on go on your way for few miles and do it again. Sometimes go for long distances without stalling. Then 3 weeks ago died and has not restarted since. Have replaced ign mod, crank sensor, tested coil. Still no spark. Have good fuel pressure? Could it be VCM or maybe a bad coil still. All terminals of coil read less than 1 ohm. No matter what I have done, coil does not produce spark. No trouble codes etc. Thanks

Terry
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Sunday, January 17th, 2010 AT 10:36 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
All terminals of coil read less than 1 ohm, what about the seconday resistances negative of coil to the coil tower, check also the distributor pick-up coil and the ignition control module.
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Sunday, January 17th, 2010 AT 11:25 PM
Tiny
PESCADO63
  • MEMBER
  • 3 POSTS
Secondary tower to primary 5.5 ohms as prescribed. Read in mitchel that pickup in dist for cam is for injection timimg and refernce only! I have three ign mods and all three run in Gmc van. I have been there with this one. Can it be the VCM?

Terry
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Monday, January 18th, 2010 AT 11:20 AM

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