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1998 Silverado 5.7 vortec No Spark?

Truck just wouldn't start realized no spark. Car MD says bad cam to crank position sensor so I changed cam position sensor, crank sensor, ignition module, coil, cap, and rotor. Still no spark and car MD still has same error. any ideas?

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
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Posted on Jan 02, 2017

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keemo68

Ronald Mueller

  • 1263 Answers

SOURCE: wont start

did you check the fuel pump relays?

Posted on Aug 29, 2008

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djicenova

Patrick Cowan

  • 319 Answers

SOURCE: NO START

Check the wiring to the coil, it may have an intermittent short

Posted on Feb 27, 2009

MNfisherman

Nate Stansfield

  • 11896 Answers

SOURCE: 1996 chevy truck 305 new rotor and distributor cap

did you test or replace the crankshaft position sensor? That is where the spark signal begins.

Posted on Sep 24, 2010

JOHN LAPIER

  • 2595 Answers

SOURCE: 1992 chevy blazer 4.3 vortec engine 2w dr have

Check the wireing to the pump they had problems with it it tended to over heat and corroad there is a service bulliton on the prroblem #25215705and a kit with new wires and connector to resist over heating Icould give you the kit # but i got a DELPHI pump and the connector dosn;t fit a chevy pump

Posted on Nov 23, 2010

Joseph Hoffmann

  • 1755 Answers

SOURCE: 1989 chevy truck, 5.7...will not start....no fire

Hi, I believe there is a computer problem. If possible check codes for no start condition. if you know the no.#1 cylinder at TDC (Top Dead Center) on engine then you will know no#1 distributor is. Good luck.

Posted on Jun 14, 2011

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