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First Post need help

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Chevrolet Forum >> Chevy Trucks, Vans & SUV's >> S-10 & Blazer >> First Post need help

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First Post need help - 6/2/2008 11:08:32 AM

CamaroJake

Posts: 1
Joined: 6/2/2008
Status: offline

Hello!

I have a 94 GMC Jimmy with the vortec 4.3 (same drivetrain as a blazer)
It is 4 wheel drive and runs like a champ, but here lately everytime there is increased load on the engine from towing, or heavy 4 wheeling, the EGR keeps going bad. The engine sputters and stumbles and blows out black/blue smoke. I know this is the EGR because I have replaced it 3 times now and it fixs the problem. However this last time I used some gas/fuel injection cleaner after i replaced the egr. It ran just fine, but when I pulled into the parking lot of work, it done it again.

Why is my jimmy eating through EGR's???

Post #: 1

RE: First Post need help - 6/4/2008 8:21:45 AM

EvansBlue

Posts: 2379
Joined: 7/12/2007
From: Princeton, NC, USA
Status: offline

There is definately something wrong.

Have your EGR Electronic Vacuum Regulator Solenoid and your EGR Control solenoid checked.

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2000 Blazer LS
1981 Z28 Camaro
1994 Toyota truck