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1997 Chevy Suburban only fires when key's released

Tiny
HELPING YOU
  • MECHANIC
  • 1997 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 21,000 MILES
Only does it COLD! You can crank all day - nothing - 'till you release the key - then vrroom! Been getting worse, fires when key's released but may not "catch" until many attempts. All is fine/normal until sitting overnight or all day. Ignition module? Other ideas?
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Tuesday, February 10th, 2009 AT 9:22 PM

2 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,700 POSTS
Hi:

It doesn't sound like an ignition module, but rather more like the ignition switch itself. Is the check engine light on?
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Wednesday, February 11th, 2009 AT 6:49 PM
Tiny
HELPING YOU
  • MECHANIC
  • 100 POSTS
UPDATE;This AM I tried a 1 sec. Blast of ether in the PCV tube hole - it fired right off! (Fuel prob.).
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Wednesday, February 11th, 2009 AT 7:55 PM

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