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'98 Chev Truck: No start

Tiny
GORD BATTEN
  • MEMBER
  • 1998 GMC
A few weeks ago I left a friends house and went to start my truck and it just turned over. I had the truck towed home and started diagnosing. There was lots of fuel, and compression, but no spark, I replaced a few parts that I thought could have caused the problem. Cap, Rotor, Wires, and the coil. Still nothing, there is adequate voltage going into the coil, but nothing coming out. There is a good signal from the PCM also.I'm lost.
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Wednesday, February 1st, 2006 AT 3:51 PM

2 Replies

Tiny
CHEVY350GUY
  • MECHANIC
  • 109 POSTS
Check crank sensor. If it is bad the ecu is not recieving its signal. This will cause a no spark
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Thursday, February 2nd, 2006 AT 10:46 AM
Tiny
GORD BATTEN
  • MEMBER
  • 2 POSTS
Now i've replaced the crank sensor, and $175 later there's still no fire. Any other ideas?
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Wednesday, April 12th, 2006 AT 2:04 PM

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