Question about 2004 GMC Yukon

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HOW DO i GET THE heater hose coupling connection clamp off to replace the hose. I cannot figure out how the coupling clamp works. One hose hase a regular clamp. The other a coupling connection...

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Use a fuel line disconnect tool to disconnect the coupling

Posted on Jan 16, 2013


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic 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 repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

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SOURCE: replace factory radio on 2002 yukon xl

all you gotta do is carfully pry the dash panel off (prying from the far left end is easiest) completely remove panel. then there are 2 clips that hold the factory sterio in place. push on the both clips while pulling the radio out. simply disconnect the wiring harness from the back of the radio. using an adapter avaliable at your local radio shop (scosche p/n gm02, mdarb and gm1483b) wiring harness, dash install kit, and antenna adapter. then simply match the colors on the new radio's harness to the adapter harness, crimping each connection with a "but plug". then simply follow the instructions included with the dash install kit to assemble the kit.connect the antenna adapter to radio, plug in all cables. test to see if everything works properly before the final install. install sterio into dash install kit, re installing kit where origional radio was. then simply put the panel back in its place by firmly pushing on it untill it snaps into place. then enjoy your new radio!

Posted on Jan 04, 2009

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SOURCE: 2002 GMC Yukon blows cold air from the front, rear works fine

check you antifreeze level and make sure its full

Posted on Jan 26, 2009

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SOURCE: The Heater fan in my 2003 GMC Yukon XL will not turn off

I don't know if you already fixed it, but I had the same problem on my 03 yukon, TysonRicky is right. In my case it was the blower control module. You can find it right under the glovebox. It cost me close to $100 for a new one, but very easy to replace. Can't even imagine how much it would've cost me if I had a mechanic do it.

Posted on May 19, 2009

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SOURCE: 2004 Yukon XL Denali fuel gauge fluctuations

Your sending unit for the guage is part of your fuel pump in the tank. But first try your fuel pump relay, may be working intermittenly when you hit a bump or something. Or possibly a loose wire somewhere along the way. Much less expensive (worth a look).

Posted on Dec 18, 2009

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SOURCE: 2005 Yukon XL Denali: Heater

Does it work on any speeds? If it still works on high then the blower resistor is bad. On the passenger side under the glovebox is the blower motor and resistor.If possible try wiggling the pigtail plugs that attach to these two components.It is not uncommon to have problems with these pigtails.Also try tapping the bottom of the blower motor to see if it will start working again.If it does The connections are poor and need repaired. If the blower will not work at all check for power at the blower motor pigtail with a test light or dvm. Will be glad to assist further if more assistance is needed.

Posted on Oct 26, 2010

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We're the shut off valve on heater core 2004 chevy

Keep looking - there isn't a shut-off valve for the heater core. Water flows through the all the time. The only time you get heat is when you set the controls for it and then cabin air is routed through the core. All other times it bypasses it. If you have a leaking heater core, in most cases you can remove the heater hoses at the firewall and using a hose adapter available at any hardware store with a couple clamps, you can make a bypass loop of the core until you can get it replaced. Of course you have no cabin heat until you repair or replace the core. It is not recommended to stub off the ends of the heater hoses because on some vehicles, that loop provides other cooling functions such as cylinder heads, etc. That is why looping it is the safer choice.

Dec 06, 2016 | Cars & Trucks

2 Answers

How do i replace radiator hose connector into firewall for 2004 yukon

If you're talking about where the heater hose connects to the heater core and the metal is corroded away then you'll need to replace the heater core. You don't need any special tools, but it's a time consuming job.

Oct 29, 2014 | 2004 GMC Yukon

1 Answer

How to replace heater hose

2009-11-27_043351_98_chev_ven.gifHEATER CORE REPLACEMENT

J 38185 Hose Clamp Pliers


Drain the cooling system.
Remove the left wiper arm linkage nuts. Reposition the left wiper arm linkage for access.
Disconnect the vacuum hose from the brake booster and reposition.
Remove the air cleaner cover and intake tube.
Disconnect the throttle and cruise control cables from the TBI mounting bracket.
IMPORTANT: Disconnect the throttle and cruise control cables to prevent bending the cable housings.

Remove the transmission fluid filler tube.

Disconnect both of the heater hose clamps at the heater core using the J 38185.
Remove the heater hoses from the heater core.
Cap off the heater core pipes.
IMPORTANT: Cap off the heater core inlet and outlet pipes to prevent coolant spilling inside of the vehicle.

Remove the heater core cover.

Remove the heater core pipe retaining clamp screw.
Remove the heater core from the HVAC module.

Install the heater core to the HVAC module.
Install the heater core pipe retaining clamp screw.
NOTE: Refer to Fastener Notice in Service Precautions.
See: Service Precautions\Vehicle Damage Warnings

Tighten the screw to.1.6 N.M (14 lb in).

Install the heater core cover.

Install the heater hoses to the heater core.
Reposition the heater hose clamps to secure the hoses using the J 38185.
Install the transmission fluid filler tube.
Install the air cleaner cover and intake hose.
Connect the throttle and cruise control cables to the TBI mounting bracket.
Connect the vacuum hose to the brake booster.
Install the left wiper arm linkage.
Install the left wiper arm linkage nuts.
Tighten the nuts to.5 N.M (44 lb in).
Fill the coolant.

Jun 26, 2014 | 2001 Chevrolet Venture

1 Answer

Diagram for heater core replacement on 1986 elcamino

Best to get a repair manual. You will need to remove part or all of the dash, since the heater core is inside the car on the firewall. An Autoparts store would have a repair manual for your car. In The Meantime: 1. Disconnect the heater hoses, at the firewall in the engine compartment. 2. Connect the two hoses together using a piece of tubing and a couple of hose clamps. (This will bypass the heater core, until you can get it fixed.)

Jan 22, 2014 | 2000 Chevrolet Silverado

1 Answer

How to remove heater hose fitting clamps

They have a special tool that has a clamp on a cable. Some auto parts will loan or rent out the tool. Some times you can rotate the clamp by putting pressure on one end of the clamp and rotating it to a different position BUT be careful because if you break the heater connection taking out the heater core will cost you

Nov 02, 2013 | 1997 Buick Park Avenue

1 Answer

I have a 1962 ford falcon. The hose, from what i

Aren't there hose clamps on the two hoses at the firewall? That hose should come off right there-one is connected to the heater core inlet inside the heater case, the other hose is connected to the heater core outlet tube. While you are at it, replace both hoses. Heater hoses are standard sizes, like only two sizes, larger is 3/4 " diameter. Take an old piece of your hose to parts store for replacement. They have rolls of heater hoses, can cut you off just what you need for low price.
If the hose clamps are not on the hoses at firewall, they must be accessed from under the dash, but should be easily accessible.
Really, a 1962 falcon? 50 years old and still going? That was the year I graduated high school, driving a 1957 Dodge two door black hardtop, yes, the big finned clown car-lol.

Sep 25, 2013 | 2007 Ford F

1 Answer

I have a 2001 ford expedition my front heater core was leaking so i by-passed it. now its the rear heater core can someone please tell me how to by-pass it to. please

Just remove the heater hoses where they go in to the firewall, and connect them together with a short piece of copper pipe and a couple heater hose clamps. Or, remove the hose that goes from the water pump to the firewall completely, then remove the firewall end of the other hose and connect it directly to the water pump. If the relative sizes of the two heater hoses make this impossible, then revert back to my first suggestion.
For a video showing the basics of replacing heater cores go here.
Thank you for using FixYa.

Sep 20, 2012 | Cars & Trucks

1 Answer

How do i replace heater core in 1990 cutlass calais s 4 cyl 2.5L

Hi Ronald,

That vehicle is equipped with one of the easiest heater cores in the world to replace. Here are the instructions form the service manual:

Drain cooling system. Raise vehicle. From underneath, remove heater hoses from heater core. Remove drain tube. Lower vehicle. Remove right and left side sound insulator panels. Lower heating duct and hoses. Remove heater core cover and heater core. To install, reverse procedure. Fill and bleed cooling system.

HINT: I never drain the cooling system to replace a heater core. It is not necessary if you use a couple pairs of long-nose Vise-Grips to clamp off the heater hoses before you disconnect them from the heater core. That way, the only coolant you will lose is what is actually in the heater core itself.

Nov 25, 2011 | 1990 Oldsmobile Cutlass Calais

2 Answers

Leaking coolant into pass. side, need bypass untill heater core can be replaced.

to do this you need to remove the two hoses that go into the firewall (to the heater core) and figure out a way to join them-using a pipe and clamps is the most common method.

Sep 23, 2011 | BMW 7 Series Cars & Trucks

1 Answer

Leaking antifreeze inside car. i want to bypass heater core if could until we can get it fixed. how do i do it?

Trace the 2 water hoses going into the firewall from the engine. Remove 1 and measure the inside diameter, most but not all GM heater hose is 1/2 inch. Go to the hardware store and get a plastic 90 degree plumbing elbow the same size and a couple screw hose clamps. Remove the heater hose from the firewall and connect them to the elbow with the hose clamps. Make sure they can't rub on the exhaust manifold and top up the rad and you are good. Hope this helps.

Jul 13, 2011 | Chevrolet Impala Cars & Trucks

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