90 BLAZER 5.7L AUTO STALLS ONCE WARMED UP

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90 BLAZER 5.7L AUTO STALLS ONCE WARMED UP

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Blazer Forums >> Mechanical & Maintenance >> General Tech Help >> Full Size K5 Tech >> 90 BLAZER 5.7L AUTO STALLS ONCE WARMED UP

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90 BLAZER 5.7L AUTO STALLS ONCE WARMED UP - 3/11/2008 6:18:27 PM

donnieib6ub92

Posts: 9
Joined: 3/9/2008
Status: offline

HI HOPING FOR SOME HELPFULL TIPS ON MY ENGINE ISSUE. WHEN I START IT IT WILL STALL AT FIRST BUT IF I START IT AND REV IT A FEW TIMES IT WILL STAY RUNNING, THEN ONCE WARMED UP STALLS I'LL RESTAR IT AND WILL STALL A FEW MINUTES LATER . THE WEIRED PART IS IT ALSO SEEMS TO HAVE SOME THING TO DO WITH THE BRAKES IF I PUMP THEM A FEW TIMES WHILE DRIVING/ STOPING IT'LL STOP IDILING FUNNY BUT IF I DONT IT'LL STALL.
I'VE NEVER SEEN IT HOPING SOME ONE ELSE HAS,
ENGINE 5.7L
REBUILT WITH 50,000
NEW PLUGS WIRES DIST CAP
2 NEW INJECTOR CONNECTORS (ONE WAS BROKEN/REPLACED BOTH)

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RE: 90 BLAZER 5.7L AUTO STALLS ONCE WARMED UP - 3/11/2008 6:38:36 PM

swartlkk

Posts: 15304
Joined: 5/1/2005
From: Waterloo, NY
Status: online

Sounds like you may have a vacuum leak. Try this, spray some carb cleaner around the base of the throttle body while the engine is running. If the idle changes, you have a leaking TB base gasket.

It is possible that you have an EGR problem as well. But start with a vacuum leak check..

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Kyle-