Question about 1996 Chevrolet Blazer

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1996 chevy s-10 blazer 2wd with 4.3 vortex engine.will not start if it sits for any lengyh of spray of starting fluid in the air filter and it starts right up and will run great until the engine is turned off.after the engine has been off for a few minutes it will not start unless the starting fluid is used.

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Jeff Armer

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Could be the fuel pump is not providing the proper fuel pressure !
Fuel psi less than 50 psi no start GM CPI Vortec

Posted on Dec 10, 2017


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Ronny Bennett Sr.

  • 6927 Answers

SOURCE: my 95 chevy blazer 4.3

The cam sensor,or pick up coil in the distributor is at fault,witch ever it has.

Posted on Aug 04, 2010


Harvey N Tawatao

  • 3854 Answers


The Fuel pump is is in the gas tank. 
The Fuel relay is in your glove compartment behind a panel on the left corner and the realy i believe is the middle one.
The Fuel filter is on the inside of the frame rail under the driver's door.
Note: the fuel pressure for the 4.3 I think is 66 psi and drops 6 to 10 psi at idle.
Good luck and hope this helps

Posted on Apr 09, 2009


  • 2 Answers

SOURCE: 2000 chevy blazer (4.3 engine) has a hard time starting in the

on your next fuel up add 93 octane fuel and a bottle of Fuelinjecto cleaner (not Octane Booster). This did the trick on my 95 blazer

Posted on Feb 18, 2010


  • 6 Answers

SOURCE: low fuel pressure

its also possible to have a blockage in your fuel tank.

Posted on Mar 23, 2010

Linh Thanh

  • 784 Answers

SOURCE: My 1999 Chevy Tahoe wont start unless i spray

It is not a fuel pump problem.
It a cold start valve problem. It didn't open. There are 2 things to check.
1- The cooling thermal sensor is not sending the proper signal to the ECU to turn on the cold start valve.
2- The bad solenoid inside the cold start valve causing it not operational.
Case 1 you can easily replace the thermal sensor.
Case 2 checking this requires professional skill to confirm if there is a signal at the valve during the start.
Good luck

Posted on Aug 04, 2010

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Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at!

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