Having problems with your 2003 Chevrolet Blazer ?

I've got an 2003 blazer 4wd with a 4.3L. It idles rough once above idle its fine. Its not missfiring. The distributor, cap, rotor button, plugs, wires and crank sensor have all been replaced. Everything checks out fine. got any solutions please respond

Posted / edited by AnonymousUser on : 19-02-2018

Answers :

I would recommend having a fuel injector balance test performed as these injectors have a common problem with plugging up. Off idle the other injectors may be compensating for this fuel deprivation.
\015\012The air/fuel ration can also be reviewed with a scan tool. Good luck.
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