1994 GMC Jimmy knocking noise

1994 GMC JIMMY
135,000 MILES • 6 CYL • 2WD • AUTOMATIC
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CYRUSWM
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my jimmy is make a loud knocking noise its pretty consistant with the revs of the engine. it is even squiels when im coming to a stop i am trying not to drive the truck too much but i need to get back and forth to work and this is my daily driver can you give me any help, im unsusre wheather the knock is internal or external and everthing around the drive belt is tight the fan is tight the things i can see and think it would be are all ok
Jun 28, 2010 at 10:51 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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