Question about 1996 GMC Jimmy
I just changed my 1996 jimmy heater core. Its not that bad. It took about six hours.
Remove all panels below the dash. There are three nuts to remove under the dash, One in the center and one on each side at the side panels. I did not remove the park brake, I just let that panel hang loose. Remove the two nuts holding the steering wheel bracket top allow the steering wheel to rest on the seat. Remove the speaker covers on the top of the dash and remove the defroster grill. You'll see four screws on the top of the dash. When you remove them, the dash will start coming down. Where you removed the nut under the right side you will see the dash hangs on a pin right next to the bolt, lift the dash off this pin and you'll have more room to work. I loosened wire straps and tape as needed for more room to work.
The heater core cover is nearly rectangle on the right side. There are six screws holding in on. he first five are easy, number six cannot be seen without a mirror and light. I had an extra pair of hands to help with this part. The screw in the top left corner of the heater core cover is hidden. Use a mirror to see and place socket on it. Remove the cover. The heater core itself has four screws and two brackets that come off easily. Where the tubes go through the fire wall there is a bracket with one screw into the fire wall. Its hard to see and is not the screw mounting the clamps on the tubes. Go under the hood and remove the heater hoses. The heater core will slide right with some maneuvering. Reinstall the same way. It takes less time to assemble now that you have seen it.
I'm just a weekend garage mechanic and it really wasn't that bad, just take your time.
Posted on Dec 27, 2008
NO, BUT THE COMPLETE HVAC MODULE NEEDS TO BE REMOVED. THIS IS BASICALLY THE LARGE BLACK AIR DISTRIBUTION BOX LOCATED UNDER THE RH SIDE OF DASH. THE RH BODY MOUNT BUSHINGS ARE ALSO GOING TO NEED REMOVAL & THE BODY SLIGHLTY RAISED TO GAIN ACCESS TO CORE UNDERHOOD.
Posted on Nov 08, 2008
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