1990 GMC Suburban

Nov 23, 2004 3 Replies

HI All Thanks in advance



1990 GMC Suburban Vehicle has been running smooth no problems except it needs new exhaust from muffler out. I'm wondering if this has to do with my current problem. Started the vehicle yesterday and it ran rough, started down the road and it felt like it wasn't running on all cylinders. Very noticeable expecially when first starting out. I turned around and parked it after a 1/4 mile. Where should I start? Thankyou Ross

Just had a similar problem with my '90 Chevy burb. Replaced spark plugs, wires, and gas filter and it has run fine since.

"Sigwings" wrote in news:LOOod.76930 $V41.67531@attbi_s52:

Could be a malfunctioning injector.

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% There are two classes of pedestrians in these days of reckless motor traffic - the quick and the dead. ~ Lord Dewar 1933 ~

Climbing into a hot car is like buckling on a pistol. It is the great equalizer. ~ Henry G. Felsen 1964 ~

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