Question about 1998 GMC Jimmy
Guys....I have an 89 S15 w/ a 4.3 v6, it has 340,000 + miles on it, without the valve covers ever being off. The old girl runs great, but overheats....the radiator seems clean, a new fan clutch, new water pump and still, without the thermostat, it still over heats. Could it be the catlytic converter?? (It still has the original.) Does good on cool days, but days over 75 degrees.....she'll boil. Many thanks, Bruce
Do you hear the converter rattling?? and you can start the truck and feel the end of the exhaust and see if it feels like it is blowing the exhaust out
Posted on Apr 15, 2009
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Posted on Jan 02, 2017
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