Question about 2004 GMC Sonoma

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Dash removal 98 sonoma

I am trying to get to the heater core on my sonoma but i cant get the dash out.. all of what do i need to take out of the dash for it to come out?

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SOURCE: Replacing heater core in 2000 GMC sonoma. Dash is

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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SOURCE: having problem removing heater core cover cant get dash board out

i think under the glove box??

Posted on Feb 23, 2010

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SOURCE: 1995 gmc sonoma heater core

About the heater core, in the manuel I bought at Auto zone, it gives all the steps and bolts necessary to unloose. The dash will swing out at the bottom, don't forget to remove the bolts under the speaker covers.
R/ Randy

Posted on Apr 20, 2011

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1995 gmc sonoma heater core removal, replacement. i need help removing the DASH.


About the heater core, in the manuel I bought at Auto zone, it gives all the steps and bolts necessary to unloose. The dash will swing out at the bottom, don't forget to remove the bolts under the speaker covers.
R/ Randy

Apr 14, 2011 | 1995 GMC Sonoma

2 Answers

Replacing heater core in 2000 GMC sonoma. Dash is


Usually the whole hvac box has to come out of the vehicle to replace the heater core. Once the box is out it can be opened and the heater core removed. Be careful with all the vent doors and actuators, make note of how everything came apart. The last thing you want to do is have to remove the dash and box because something wasn't on just right. Good luck.

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The heater still won't work after I changed the thermostat on my


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Feb 12, 2009 | 1999 GMC Sonoma

2 Answers

NEED TO REMOVE DASH TO REPLACE HEATER CORE ON 1995 GMC SONOMA


yes you have to remove the whole dash assambly to replace the heater core..have fun i had to do mine twice.my new heater core lasted about 6 months.

Aug 01, 2008 | 1997 GMC Jimmy

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How to remove heater core in a 98 blazer


You have to remove the dash in layers. There's a whole bunch of screws to take out. The heater core is located in the middle of the dash near windshield when you get that far. There are a couple of brackets that hold the heater core in place, remove the heater hoses and pull out heater core. It's quite a long process so give yourself plenty of time.

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