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Old 10-05-2009, 02:40 PM   #10
MT-2500
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Re: 92 blazer starts but shuts off immediately...

Quote:
Originally Posted by Dr. Strychnine View Post
It's a Z...
Put in 5 gals fresh gas and a bit of Marvel added to the 1/4 tank that was already there. Fuses are all good. Changed the fuel filter today and still same result. Looks like good spark from the plugs and the wires are about a year old.


I have no clue how to test fuel pressure I read it in my haynes manual but frankly i just don't think I can do it. Is there a possibility that this could be a vacuum issue?
No on vacuum unless the cat is plugged solid.

The Z engine is turbo engine.
You need around 40 lbs fuel pressure to run it.
Make sure you check fuses.
See if you can find someone to help you check fuel pressure.
Also check for codes.

Also see if it will run on carb cleaner spray.

Does you ign key have a pellet in it?
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