Blazer runs then dies

Asked by GuruXVWVP Oct 15, 2018 at 06:46 AM about the 1998 Chevrolet Blazer 4-Door 4WD

Question type: General

I have a Chevy Blazer 98 it we'll start run for about
15 mins then die  I have changed the mass
air,map,fuel pump,and the fuel pressure is good I
even changed my crack shift sinser and it's stall
doing it.i had a scan done and it's not bring
anything up I'm at a lose here can anyone help can
afford a new car

6 Answers
42,880

Hornet_2497 answered 5 years ago

You have done all the right things I would have thought of. Might be a relay heating up and cutting out. The most likely one would be the fuel pump relay. A failing camshaft sensor should set a code like P0340. Maybe it won't.

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GuruXVWVP answered 5 years ago

Yeah I don't get it I'm good with truck but I don't know what to do if I'm not mistaking I f I changed that awhile ago to

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42,880

Hornet_2497 answered 5 years ago

Don't give up. It's usually something really minor that drives us nuts. New fuel pump malfunctioning, loose ground wire to engine, loose connector to pump. When it stalls, try to determine if the fuel stopped or was it the spark. Good Luck.

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Hornet_2497 answered 5 years ago

Soon as it stops, try cranking it back up and test for fuel pressure and also check for spark. If you find one missing, it will narrow down your search. Either it's lack of fuel or spark that makes it stall.

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