Question about 1983 GMC S-15 Pickup
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
you need to remove the glove box disconect the heater hoses look behind the glove box some heater boxes are two pieces and you can remove the heater half some you need to remove the whole piece if that is the case let a garage do it because they need to disconect the a/c so it needs to be evacuated and recharged if it is a two piece box just remove the bolts that hold the heater core under the dash and pull the box strait back good luck
Posted on Dec 22, 2008
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
THE STEERING COLUMN (DO NOT ROTATE THE STEERING WHEEL AFTER THE INTERMEDIATE SHAFT IS REMOVE, YOU WILL BREAK THE SIR COIL), WINDSHIELD MOLDINGS, AND DASH HAVE TO BE REMOVED FIRST. UNDER THE HOOD THE BLOWER RESISTOR, R/H INNER FENDER WELL, HEATER HOSES TO THE HEATER CORE AND SEVERAL NUTS AND BOLTS HOLDING THE HEATER PLENUM TO THE FIRE WALL INCLUDING THE HIDDEN BOLT UNDER THE BLOWER RESISTOR IN THE EVAPORATOR CORE AREA. THEN FINALLY THE BOLTS ON THE INSIDE OF THE TRUCK HOLDING THE PLENUM TO THE FIREWALL.
NO DISRESPECT INTENDED BUT IF YOUR NOT A TALENTED MECHANIC I WOULD FIND ONE OR HIRE ONE THAT CAN DO THE JOB FOR YOU. THIS IS QUITE INVOLVED FOR A NOVICE.
Posted on Jun 01, 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
Tips for a great answer:
Dec 13, 2016 | GMC Cars & Trucks
Jan 21, 2016 | GMC Cars & Trucks
Feb 20, 2015 | GMC Cars & Trucks
Jan 04, 2015 | 1997 GMC Jimmy
Feb 14, 2013 | 1994 GMC Suburban
Sep 07, 2011 | 2000 GMC Sonoma Extended Cab
May 23, 2011 | 1988 GMC S-15
Oct 12, 2010 | 2004 GMC Envoy
Oct 17, 2009 | 2000 GMC Sonoma Extended Cab
50 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: