Question about 2002 GMC Sonoma Extended Cab
I would suggest jacking the front of the vehicle as high as you can to get the trapped air in heater core out through the system and thats the only way I know of doing it air will rise to highest spot (radiator) when it is jacked up higher than heater core..........Providing you hooked up your heater hoses the way they were when you took apart.
Posted on Feb 10, 2012
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Posted on Jan 02, 2017
SOURCE: 2000 gmc sierra heater
the quick connect can be removed it requires a special tool thatr i dont seem to have and one can be picked up from the nearest parts store for about 6.00 dollars i cut mine off with a drimmal tool
Posted on Dec 09, 2008
If the dash is removed you've saved about 9 10ths of the job endurance. Look around, what you believe to be, the perimeter of the heater box. I cannot, and no one else can, tell you exactly where the bolts and nuts that mount the heater box are. Therefore you must viually sixe the box and check outide in the engine compartment and inside under the dash for the mounting bolts.You'll want to start by removing the heater hoses. Then starting at the passenger side engine compartment look for a group of 10mm or 7/16ths nuts retaining the housing and remove them. Do the same inside. The housing is usually held together with screws or clips, it changes year to year. Keep a log or pix of the wires and cables and hoses(vacuum) that are connected to the housing for reassembly. You'll need to "roll" the box out from under the dash depending on how much of the dash has been removed. The core is easy to spot for is has two hoses sticking out, and, is encircled with clips or screws . Also make sure you remove the bracket around the two entry hoses if it has one. Thank you, Dana
Posted on Oct 04, 2009
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