Question about 1999 GMC Jimmy
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Posted on Jan 02, 2017
Disconnect the heater hoses from the water pump and the intake manifold. Get a compressor and blow out the hose (put the air hose into the the hose that came off the mainfold. then flush the system and replace the antifreeze.
Posted on Dec 12, 2008
SOURCE: ecm fuse keeps blowing
just fixed this problem, change your fuel pump module, fuel sending unit shorts out on fuel level swing arm blue wire... unfortinately you must replace it as unit because of the design, fuel pump and tank guage fuel level sending unit are a one peice item, fuel tank has to come out to change unit, about a $ 700.00 repair too... fuel pump module runs about 350 to 700 $ depending on aftermarket or factory, try to find one with a lifetime warranty even if it is $ 50.00 more worth it..labor is about $ 250 to $ 400 depending on shop labor rate... definate problem though I ahve no doubt, common problem on GM... please rate my help, thanks...
Posted on Aug 06, 2009
Let the vehicle warm up to normal operating temprature, touch the heater hoses going into the firewall to the heater core, they should both be hot, if only one is hot the heater core is stopped up. If this is the case you will want to try flushing it before you replace it. If you have to replace it be prepaired to spend $400.00 or more depending on shop rates. NOTE: BE CAREFULL WHEN CHECKING HEATER HOSES YOU COULD GET BURNED! Thanks and good luck with your repair.
Posted on Nov 06, 2009
Hey my name is Chris mine is doing the same thing and i cant figure it out blows the fuse as soon as i turn the key on? any help
Posted on Oct 30, 2010
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