How do you replace the heater core on a GMC Sierra?

Remove the case assembly by disconnecting the assembly-to-chassis screws/nuts. Extract the heater core from the case by removing the core cover screws. Install the replacement heater core to the heater case and reconnect the case to the chassis, tightening all screws. Reconnect all electrical connectors that you detached.

What happens when a GMC heater connector breaks?

The problem with this is that over time, the plastic becomes brittle and breaks off. Because the connector breaks in the middle, you can’t just simply slide the hose over the heater barb and toss on a worm-clamp. Instead, you have to remove the remaining plastic connector.

When did GM stop using heater hose disconnects?

All GM trucks and SUVs used plastic heater hose connectors (disconnects) for the heater hoses from 1999-2014. The problem with this is that over time, the plastic becomes brittle and breaks off. Because the connector breaks in the middle, you can’t just simply slide the hose over the heater barb and toss on a worm-clamp.

How do you remove a heater core from a car?

Step 4 – Using the hose clamp removal tool, loosen and remove the heater hoses from the heater core inlet and outlet fittings. Step 5 – After the heater hoses have been removed, locate and remove upper dash mounting screws.

Where is the delete cover on a Chevy truck?

Delete cover is manufactured from molded fiberglass with a black gelcoat and is designed to mount to the firewall where t he stock AC evaporator core and case are normally located. This cover will allow more space for large valve covers and headers as well as big block engines while keeping the heater unit intact.

Why do I need a GMC Truck a / C cover?

This cover will allow more space for large valve covers and headers as well as big block engines while keeping the heater unit intact. This product fits the following vehicle applications. Click to view individual years.

Are there any parts stores that sell GMC parts?

We know that when you’re shopping online for Auto parts there are many choices and we thank you for stopping in at GM Parts Store . We offer Genuine GMC parts at discount prices.

What kind of body panels do GMC trucks use?

With nearly 30 years of experience honing our product line, we’re confident that the GMC and Chevrolet body parts and replacement panels we provide will not only meet your needs, but exceed them. At Raybuck, we continually seek out the best-quality products and refuse to compromise on our high standards.

When to replace plastic heater hose connectors in GMC?

Replacing GM plastic heater hose connectors is often an emergency situation, where the hose has broken on the side of the road. It is not a bad idea to preemptively attack this problem and replace them before one breaks and leaves you stranded.

How does a Chevy Silverado heater core work?

The heater core has coolant lines which connect to it and produce the actual heat. A fan then pushes the heat through the ventilation system and into the cabin. If a heater core gets clogged or the blend door becomes jammed, the unit will need to be removed.

Where is the heater core in a Chevy Silverado?

It is essentially a mini radiator hidden deep inside the engine compartment behind the dashboard, which produces heat for the climate system. The heater core has coolant lines which connect to it and produce the actual heat.

How do you replace the radiator in a GMC Sierra?

Use a clean container, if you believe you can use the coolant again, although replacing it with fresh coolant may be best. Crawl under the GMC Sierra, remove the drain plug from the radiator, let the coolant flow into your container and then replace the plug. Raise the hood and take off the Sierra’s negative battery cable.

What to do if your Chevy Silverado heater gets clogged?

A fan then pushes the heat through the ventilation system and into the cabin. If a heater core gets clogged or the blend door becomes jammed, the unit will need to be removed. This task is not for the faint of heart and requires the complete removal of the dashboard, including the radio, airbags, and climate control system.

How do you replace coolant in a GMC Sierra?

Drain the engine coolant from the cooling system. Use a clean container, if you believe you can use the coolant again, although replacing it with fresh coolant may be best. Crawl under the GMC Sierra, remove the drain plug from the radiator, let the coolant flow into your container and then replace the plug.

Where is the heater core located on a GMC Sierra?

The heater core is stored within a case attached to the Sierra’s chassis You must disconnect the case assembly, if the core needs replacing. The case has multiple connectors and hoses you’ll have to disconnect.

How do you replace the heater core on a Chevy Silverado?

Replace the heater core. Once the deed is done, take your time and re-install all of the dashboard components. Be wary of the screws and bolts you use to re-install the components, as some are slightly longer and will not fit all the way in. After everything is back together, top off the coolant and reconnect the negative battery cable.

How is a heater core used in a car?

A heater core is used in the heating of the cabin of a vehicle. It is a radiator-like device that takes hot coolant from the vehicle’s engine and passes it through the winding tube of the core. The heat transfers to the tube, which then heats the air that passes through it on its way to the cabin.

How do you replace a hot water heater core?

Plug the hoses when they are disconnected. Remove the mounting bolts from the heater core with the socket wrench set. Remove the heater core next. Install the new heater core in the place of the old one and reattach the bolts. Replace the modular duct and the hoses.

What to do if your Chevy heater isn’t working?

If the heater core in your 1998 Chevy Pickup isn’t working properly, it is an easy enough fix that can be done in less than half an hour. Use the open-end wrench to disconnect the negative battery cable from the battery.

How long does it take to change a Chevy Blazer heater core?

This heater core can become clogged and leak, as it is usually the lowest point in the coolant system and debris settles into it. Replacement of the heater core will take the average backyard mechanic about two hours to complete.

Do you need to remove the dashboard to get to the heater core?

The factory manuals will tell you to remove the dashboard to gain access to the heater core. Actually, the absence of the dashboard is not necessary. It would make the heater core easier to reach, sure, but it would make the job much harder overall! I did this job on a 1992 968 so this procedure should apply to any late (1985.5-1991) 944 or 968.

https://www.youtube.com/watch?v=SZFsKtS9NPI

How to install a heater core in a 1999 Grand Am?

How to Install a Heater Core in a 1999 Grand Am. Drain the antifreeze from the coolant system into the drain pan by opening the valve on the bottom of the radiator with a wrench. If you keep the coolant clean, you can reuse it after completing the repair. Place wheel chocks behind the rear wheels.

Do you need to remove the glove box when replacing a heater core?

Use caution when installing the heater core, these units are made of thin metal and plastic and are easily broken. Use a digital camera/phone to take pictures during the dis-assembly process, this will aid in reassembly if things get complicated. The glove box will need to be removed in most cases to allow access.

How do you replace an A / C heater core?

Pull the heater core from the A/C-heater housing by tugging slightly. Pull the two coolant lines out of the heater core and remove the old heater core entirely. Replace the old heater core with a new core, installing new clamps and O-rings at all connections. Insert the coolant lines back into the heater core during installation.

How to remove a heater hose quick connect on a GM?

In this video I will show y’all how to remove a heater hose quick connect on a Chevrolet Silverado. Also applies to suburban, Tahoe etc… with the simple use of a quick connect tool this is a simple job. Just make sure the coolant is not hot. Make sure the coolant is cool. Loading…

How do you remove the core from a gas heater?

Remove the glove box. Disconnect the rubber hose for the thermometer (if equipped) and also remove the plastic air duct. These two plastic duct pieces must now be removed. The lower piece is secured with one screw. Undo it, and remove the piece. Cut this zip-tie holding a wire to the upper duct piece.

Where is the heater located in a car?

How do you replace a heater in a Silverado?

Disconnect the negative battery cable. Remove the I/P trim pad. Refer to Instrument Panel Upper Trim Pad Replacement . Remove the center console, if equipped. Refer to Console Replacement . Remove the I/P extension, if equipped. Refer to Instrument Panel Extension Replacement .

How to replace a heater core in a Silverado Sierra?

The entire dash needs to come out of the vehicle. I’ll post instructions below…. Caution:Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component.

How does the heater core work in a car?

The heater core is similar to a radiator and is a part of the vehicle’s coolant system. Hot coolant that has passed through other parts of the engine is run through the heater core as air is forced past it and into the cabin of the vehicle to heat it.

What causes a heater core to stop working?

If your vehicle’s heater isn’t working as well as it used to, or has stopped working entirely, it may be the result of a clog in your heater core. The heater core is similar to a radiator and is a part of the vehicle’s coolant system. Hot coolant that has passed through other parts of the engine is run through…

How do you get coolant out of a heater core?

Point the inlet hose down toward the container. In order to clean the blockage out of the heater core, you will need to force either air or water through the system. As you do so, the coolant, water and grime within the system will be expelled through the inlet hose.

How to replace an automotive heater core step by step?

Step by step guide on how to replace an automotive heater core, though each car is different in complexity, these steps outline the basic procedure. Begin with the vehicle on level ground, engine cold, with the emergency brake on.

What kind of Dash covers do LMC trucks use?

The …1987-91 F100 F150 F250 Bronco Dash Covers The …1973-79 F100 F150 F250 1978-79 Bronco Dash Covers The …1992-96 F100 F150 F250 Bronco LED Instrument Panel Bulbs … Gives You Longer Bulb Life Dash Protector Prevents Fading and Cracking Shelf-It™ … The Ultimate in Organized Convenience Dash Protector …

How do you replace the heater core on a GMC Sierra?