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

1998 GMC JIMMY
190,000 MILES • 6 CYL • 4WD • AUTOMATIC
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PESCADO63
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  • 3 POSTS
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
Jan 17, 2010 at 2:36 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 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.
Jan 17, 2010 at 3:25 PM
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PESCADO63
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  • 3 POSTS
[quote:f830e4eeeb="rasmataz"]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.[/quote:f830e4eeeb]

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
Jan 18, 2010 at 3:20 AM
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