How do you change the heater core in a Chevy Blazer?

Drain the coolant system by turning the drain plug on the lower left corner of the radiator and allowing the fluid to fall into the drain pan. Uncapping the radiator can reduce the internal pressure. Remove the heater core hoses, on the upper left of the engine bay, by pinching their hose clamps with a pair of pliers and pulling them off.

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.

Where are the radiator hoses on a Chevy Blazer?

Uncapping the radiator can reduce the internal pressure. Remove the heater core hoses, on the upper left of the engine bay, by pinching their hose clamps with a pair of pliers and pulling them off. Some models will have screw-type hose clamps; turning them counter-clockwise will loosen them.

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.

Can a S10 heater core be replaced on YouTube?

S10 Heater Core Replacement – YouTube This is SO EASY!!! S10 Heater Core Replacement If playback doesn’t begin shortly, try restarting your device. Videos you watch may be added to the TV’s watch history and influence TV recommendations. To avoid this, cancel and sign in to YouTube on your computer.

How to change the heater core in a Chevrolet S10?

Tighten the drain plug on the radiator, then fill it. Crank the truck up with the heater system on its maximum setting and continue to pour coolant into the radiator until it will not take in any more. Use distilled water instead of tap water for added coolant stability. Do not allow coolant/antifreeze to drip openly, as animals may drink it.

Where is the heater on a Samsung S10s?

The heater core in S10s is behind the main dashboard, and it must be removed to access the core. The front dash panel can be removed by unbolting several screws at the bottom of the panel, then pulling the panel away from the dash.

Where is the heater core on a Chevy S10?

This core can become clogged or leak, requiring replacement. The average backyard mechanic can replace a heater core in about two hours. Remove the dashboard. The heater core in S10s is behind the main dashboard, and it must be removed to access the core.

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.

What should I do if my heater core is bad?

Steps Required to Change Your Heater Core. Disconnect the battery. Remove the steering wheel from the vehicle. Remove any outer doors or casings from things like the fuse box, speakers. and kick panels. Remove the glove box, radio, speakers, and any accessories. Remove any gauges (be careful if you have a speedometer cable back there!).

How can you tell if your car heater core is broken?

Your Car Smells Odd. Do you smell melons? Whether or not the car got all foggy when the heater core broke, an unmistakable sign of a leaking heater is a fruity, sickly-sweet smell inside the car. This is the smell of your radiator fluid and definitely a sign that coolant is leaking into your car.

How to replace the heater core in a 1997 Chevy S10?

Unbolt and remove the pencil brace on the heater core cover using a wrench and then remove the screws on the cover with a screwdriver. Remove the cover. Remove the screws that hold the heater core straps and the bracket over the heater core tubes.

How does a Chevy S10 Blazer heater work?

The heater core in your 1998 Chevy S10 Blazer is radiator-style unit, used to heat the interior cabin of your truck. Engine coolant flows, continuously, from the lower radiator hose to, and through, the heater core, causing the unit to heat. An attached fan forces heated air through the heater core fins and into the cabin when the heater is on.

How do you remove a heater cover on a car?

Remove mounting bolts holding the heater core cover in place, using swivel sockets and extensions. Take out the mounting bolts attaching the heater core to the interior firewall. Disconnect the electrical wiring harness. Maneuver the old unit upward and outward, toward the windshield.

Where is the HVAC core on a Chevy Blazer?

Chevy Blazer 1998, HVAC Heater Core by APDI®. The heater core is located in a case under the dash, and is connected into the engine cooling system. Consists of tubes to carry the coolant and fins to transfer heat to the passenger cabin….

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.

Is the Chevy Blazer HVAC blower by UAC?

Chevy Blazer 1998, HVAC Heater Core by UAC®. UAC’s line of electrical components includes the blower motors that are necessary for the proper function of an A/C System. They are produced at top tier facilities with strong quality… Chevy Blazer 1998, HVAC Blower Motor by UAC®.

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 do you remove the plenum from a car heater?

Step 13 – Locate inner heater plenum mounting bolts and screw and remove them. Step 14 – Inside the engine bay, locate the heater plenum mounting bolts and remove. Remove all mounting hardware holding the plenum assembly to the firewall, Remove all duct work including windshield duct and air distribution ducting.

What should I do if my heater core is clogged?

BTW, the product used in the video was CLR. If you KNOW you have a clogged heater core this procedure is a good thing to try to help fix the problem. However, if you are having heating problems I would suggest you check for air in the cooling system first before performing this procedure.

Can you replace the heater core on a Chevy Blazer?

This week I had the pleasure, or should I say displeasure of replacing the heater core on a Chevrolet Trailblazer. This is not the older body style Chevy S-10 Blazer, but the newer body Trailblazer.

Where is the HVAC case on a Chevy Trailblazer?

Once that is out, I must remove the HVAC case from that portion of the dash. The heater core is actually inside the case that bolts to the inside of the dash. Now since I have replaced a few of these heater cores on the Chevy Trailblazer in the past I thought there had to be a better way.

Why does my Chevy Trailblazer Heater get fogged up?

This is not the older body style Chevy S-10 Blazer, but the newer body Trailblazer. The customer’s complaint was the usual of the windshield and side windows get fogged up when the heater or the defroster is on, and the sweet smell of antifreeze through the vents.

What to do when your Chevy Blazer heater stops blowing hot?

If one is hot and the other is cooler, then the core is plugged up. Try this: disconnect the hoses and take two 3 foot lenghts of clear plastic tubing ( to see progress) and attach one to each of the core ends. Now pour a container of radiator flush into both sides and let it sit in the core for ten minutes.

Where is the cabin heater located on a Chevy Blazer?

The cabin heater in your vehicle produces heat from a heater core. The heater core is a small radiator, located under the dashboard of the vehicle and consists of conductive aluminium or brass tubing with cooling fins to increase surface area.

How do you remove the core from a water heater?

Remove the heater core intake and return hoses from the core nipple by releasing the squeeze clamps, using channel-lock pliers. Squeeze the clamp, and slide and twist the hose, as you pull them off. Remove mounting bolts holding the heater core cover in place, using swivel sockets and extensions.

What does it mean when your heater core is leaking?

Having a leaking heater core can be one of the most frustrating leaks you can have in your vehicle. Almost any leak in your car is an external leak, meaning the leaking fluid will just leak out onto the ground.

Can a car heater core leak into the cabin?

Even if you have an older vehicle with the heater core outside the cabin, leaking fluid can still find its way into the cabin through the ventilation ducts. Having coolant leaking into the cabin of your vehicle can cause all sorts of problems.

What happens if you have a steam leak in your heater?

The steam can also quickly spread through your ventilation system making it very difficult to remove the odor. Depending how big the leak is, the steam can cause fogging problems on your windows and leave you with no way to clear the condensation since it is your ventilation system that is spreading the problem.

What happens if your air conditioner has a leak?

Depending how big the leak is, the steam can cause fogging problems on your windows and leave you with no way to clear the condensation since it is your ventilation system that is spreading the problem. Lastly, antifreeze is a poisonous substance so breathing in its vapors can even be harmful to you and your passengers.

How do you change the heater core in a Chevy Blazer?