Question about GMC Sierra
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Posted on Dec 12, 2014
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Posted on Jan 02, 2017
SOURCE: 1991 s10 heater core
HI, not to long age i replaced my heater core in my 1991 Chevy S-10. Its not as hard as you mite think it would be, but its no a walk in the park.. :) There are a few things you need to remove. First the glove box door, ash tray, the panel that surrounds the stereo and stereo, also the tray that holds the ash tray and last inside the glove box there is a small plastic panel at the back remove that and that should do it if I remember right. Ok now the fun part, be prepared to get your hands a little bite beat up, you are going to need a lot of extension for your wratches, some antifreeze and lots of pattions also about three hours. Injoy Blake.
Posted on Nov 29, 2008
SOURCE: heater core replacement
You do not have to do anything with the air conditioning, its all inside car under right side of dash. 1. go under hood and unhook heater hoses and bracket( if equiped) from core tubes. 2. go under dash right side remove 13mm bolt far right under dash thats so you can pull dash out a little ways to get cover off heater where heater core is.3. 1/4 in. socket set and 1/4 in. socket take screws out holding cover on look close there is one hidden top far right can't remember how maney 5 or 6 i think, screws all out use a little finess and remove cover and there will be your heater core. Good luck.
Posted on Apr 14, 2009
SOURCE: changing a heater core
here is a step by step diagram to replace your heater core
NOTE Removal of the heater assembly may require the help of an assistant.
View of the front heater assembly—Chevy/GMC C/K-Series, Blazer, Jimmy, Sierra, Suburban, Tahoe, Yukon
Click to Enlarge Location of the front heater assembly-to-chassis fasteners—Chevy/GMC C/K-Series, Blazer, Jimmy, Sierra, Suburban, Tahoe, Yukon
Click to Enlarge
NOTE Installation of the heater assembly may require the help of an assistant.
Posted on Apr 16, 2009
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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