IT CRANKS BUT WONT START

  • Tiny
  • john1227
  • 1995 Chevrolet Lumina
  • 100,000 miles

I HAVE THIS CHEVY LUMINA 3.4 IT JUST SOUNDS LIKE IF IT WANTS TOO TURN ON BUT IT DON'T

* I CHECK THE SPARK PLUGS AND IT HAS SPARK
* I CHECK THE FUEL PRESSURE AND IT HAS 55%
* I CHECKED ALL THE SPARK PLUS TO SEE IF THEY WERE WET AND NO THEY WHERE DRY
* I CHECKED ALL THE FUSES THEY ARE ALL GOOD
* I TRIED SPRAY IN STARTING FLUID BUT WONT START
**[PLEASE HELP ME WHAT DO YOU GUYS THINK THE PROBLEM CAN BE]

Monday, June 25th, 2012 AT 8:51 PM

11 Answers

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

There is only one thing, does it have compression?

3 things needed are fuel, spark and compression.

Roy

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Monday, June 25th, 2012 AT 11:28 PM
  • Tiny
  • john1227
  • Member

I HAVENT CHECKED THAT YET. BUT I HAVE CHECKED THE TIMING BELT AND THE BELTS IS OK ITS LIKE NEW.

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Tuesday, June 26th, 2012 AT 12:00 AM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

Does not have a timing belt. It has a chain.

Roy

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Tuesday, June 26th, 2012 AT 12:06 AM
  • Tiny
  • john1227
  • Member

IT HAS TO COVERS BETWEEN THE POWER STEERING AND ON THE SIDE OF THE WATER PUMP. IT HAS TWO SCREW SIZE 8, U TAKE OF THE COVER AND THERI LIKE A 1 INCH OR 2 INCH THICK BELT UNDER THOSE COVERS.

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Tuesday, June 26th, 2012 AT 12:12 AM
  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

Ok, you have the dual overhead cam motor. You need to check the belt. You are right at the time for replacing the belt. If it breaks, it will bend valves and complicate things.

Roy

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Tuesday, June 26th, 2012 AT 12:18 AM
  • Tiny
  • john1227
  • Member

OK SO WAT ELSE CAN IT BE?

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Tuesday, June 26th, 2012 AT 12:21 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

When the engine cranks, does it sound odd? If the belt broke, you most likely have bent some valves.

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Tuesday, June 26th, 2012 AT 1:57 AM
  • Tiny
  • john1227
  • Member

No it cranks up like a regular car. It has new alt new battery and starter. The car was working fine and while I was drivin it just turnd off.

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Tuesday, June 26th, 2012 AT 2:09 AM
  • Tiny
  • john1227
  • Member

And the timing belt is new.

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Tuesday, June 26th, 2012 AT 2:10 AM
  • Tiny
  • Jacobandnickolas
  • Expert
  • 68,287 posts

Have you checked the following: Spark (should be blue snapping spark)
Fuel and fuel pressure (should be within manufacturer's specs and
be getting a good pulsing power to each
injector)
Engine compression Should be within the manufacturer's spec.

If the belt broke, you could have bent valves.

Let me know what you have found.

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Tuesday, June 26th, 2012 AT 2:37 AM

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