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1997 Chevy Blazer Car turns over but won't start

Tiny
PROSPECT15
  • MEMBER
  • 1997 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 131,000 MILES
Car was running fine but the next day won't turn on. Car was towed to the house, fuel pump was replaced, car still won't turn on. I checked for spark, no spark. I changed the cap and rotor still no spark. Changed battery, alternator, and ECU still no spark and the car wont turn on. I looked online and they said to check the purge valve while having the key on the ON position and no fuel sprays out. What else can I do in order to start the car?
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Sunday, May 16th, 2010 AT 7:29 PM

4 Replies

Tiny
INTERNETMECHANIC
  • MECHANIC
  • 700 POSTS
Are you saying it cranks good, but, won't start? Check for rpm signal. Use a gage and check fuel pressure, engine cranking, there should be fuel pressure even without rpm signal.
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Friday, January 29th, 2021 AT 12:46 PM
Tiny
PROSPECT15
  • MEMBER
  • 3 POSTS
Thanks for your feed back. But yeah it cranks good but wont start. How do I check for rpm signal? I am going to check for fuel pressure today.
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Friday, January 29th, 2021 AT 12:46 PM
Tiny
INTERNETMECHANIC
  • MECHANIC
  • 700 POSTS
A scanner that shows live engine data, should show rpm when cranking. You could use a noid lite on injector plug, if there is a pulse, you have rpm signal.
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Friday, January 29th, 2021 AT 12:46 PM
Tiny
PROSPECT15
  • MEMBER
  • 3 POSTS
Again thank you for the info. I will try what you have told me when I get home.
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Friday, January 29th, 2021 AT 12:47 PM

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