Question about 1999 Chevrolet Blazer

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1999 Chevy Blazer dies after it reaches operating temp. fuel pump is still running but no fuel to motor?

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The only thing You can do is take a test light and check the grey wire at the fuel pump to see if you have power while someone cranks the engine. If so replace the fuel pump. If not replace the fuel pump relay. Hope this helps , leave a comment.

Posted on May 28, 2010

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I have a 99 Chevy blazer, it will start but as soon as I press the gas it died. I have already changed the fuel pump.


Did you change the fuel filter also? Look at the air filter. If you have throttle injection, make sure both injectors are working. Might want to clean throttle also. Check for codes? Idle air control motor stuck could cause this. Tune up maybe. I would check compression of the cylinders before putting any more money in it.

Sep 15, 2016 | 1999 Chevrolet Blazer

1 Answer

1993 S-10 Blazer runs great then dies at temp


If you have Code 15, you need a volt meter or you will run into a wall. You measure the coolant resistor ohms when its cold then measure it when the engine is warm.You also have to measure one side for a 5 volt reference.Or better yet when the vehicle reaches operating temperature and begins to stall take the leads of the coolant temperature and jump it together.This tell the ECM your temperature is 266F. If its stays running and doest stall replace temp sensor

Mar 10, 2012 | 1993 Chevrolet S-10 Blazer

2 Answers

I have a 1999 chevy blazer that died and will not start


Looks like you've covered the basics, make sure the firing order is correct with your spark plug wire replacement. Hope this diagram helps.
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Mar 01, 2010 | 1999 Chevrolet Blazer

2 Answers

1996 Blazer w/V-6 Vortec dies at op-temp. will restart. ongoing


I WOULD STILL CHECK THE FUEL PRESSURE.IF ALL IS GOOD.ENGINE GETTING TOO HOT WILL SHUT OFF.ALSO A LEAKING INTAKE GASKET WILL CAUSE STALLING WHEN HOT.

Jul 26, 2009 | 1996 Chevrolet Blazer

1 Answer

1999 chevy blazer wont start


THE FUEL PUMP IS BAD.

if your losing fuel pressure after the pump runs the drain back valve in the pump has failed.

and i doubt that you are seeing enough fuel pressure to run a vortec engine.

low fuel pressure equals a non running vortec

Apr 11, 2009 | 1999 Chevrolet Blazer

1 Answer

I Have a 1999 blazer that starts but motor dies right away.


Check the fuel delivery, first. It could be fuel pump or an obstruction. The best way is to start the car in park, then run over to the engine compartment and rev up the throttle. Keep idle higher than normal. If it wants to die, rev throttle higher to compensate. If it makes no difference, verify fuel pressure when engine dies. Usually ignition related wont even allow the car to start. Any service engine indication?

Mar 02, 2009 | 1999 Chevrolet Blazer

1 Answer

2000 chevy blazer starting issues


swng,
1) Is the service engine soon light ever on when engine is running?
2) Per your description I would look at the ECT sending unit. It sends coolant temperature information the the Engine Control Module for proper fuel delivery for cold engine start. It may have lost its calibration.
Let me know.
Regards,

Feb 24, 2009 | 2001 Chevrolet Blazer

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