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Filter by vehicle:. Filter Results. Enable JavaScript to use the part finder, or see our list of vehicles. In"Dodge Ram" was rebranded as "Ram". To add Ram trucks for and beyond: 1.

Select the vehicle year. Select Ram in the Make menu. Your Garage 0. You have no vehicles in your garage. To add a new vehicle, select the year, make, and model at left. We're sorry! We encountered an error while updating the page. Please hit the "Reload" button on your browser. Atwood Gas Control Valve with Thermostat. FREE Shipping on eligible orders. Ford F3TZA. Four Seasons Heater Valve. Only 10 left in stock - order soon. Haldex Height Control Valve. Only 3 left in stock - order soon.

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freightliner heater control valve location

Only 20 left in stock - order soon. Only 5 left in stock - order soon. Previous Page 1 2 Free Shipping by Amazon. Four Seasons.The heater control valve is a cooling and hvac system component that is commonly found on many road going cars and trucks.

The heater control valve is typically mounted near the firewall, and acts as the valve that allows coolant to flow from the engine to the heater core, which is located inside of the vehicle.

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Usually a bad or failing heater control valve will produce a few symptoms that can alert the driver of a potential issue. One of the first symptoms of a faulty heater control valve is a heater that fails to produce warm air. If the heater control valve breaks or gets stuck, the coolant flow to the heater core may be restricted or stopped completely.

Without coolant flow to the heater core, the heater will not be able to produce warm air for the cabin. Another common symptom of an issue with the heater control valve is coolant leaks. Over time the heater control valve can wear out and crack, which will cause coolant to leak from the valve. Heater control valves can also leak from excessive corrosion from contact with old or contaminated engine coolant. Usually a leaking control valve will have to be replaced in order to repair the leak.

A faulty heater control valve may not be able to properly control coolant flow to the heater, which may result in problems with operating the heater. The heater may produce hot air, but only at certain times, such as at idle, and the hot air may come and go.

Resetting the HVAC System on First Generation Freightliner Cascadias

A faulty heater control valve may also cause the temperature gauge to behave erratically, rapidly climbing and falling, which will make it difficult to determine the temperature of the engine. While replacing the heater control generally considered routine maintenance, as a vehicle approaches high mileage it can begin to have issues and require attention.

If your vehicle is producing any of the symptoms above, or you suspect that your heater control valve may be having an issue, have the vehicle inspected by a professional technician, such as one from YourMechanic, to determine if the valve should be replaced.

The most popular service booked by readers of this article is Vehicle Engine Cooling Inspection. Our certified mobile mechanics make house calls in over 2, U. Fast, free online quotes for your car repair. Schedule Vehicle Engine Cooling Inspection. Service Area. Average rating fromcustomers who received a Vehicle Engine Cooling Inspection.

Leaking coolant Another common symptom of an issue with the heater control valve is coolant leaks.

freightliner heater control valve location

Coolant Service Light. Home Articles. The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details. Related Articles. Related Questions. Car overheating You still could have a blown head gasket. Sometimes the compression blows into the radiator. A mechanic can check to see if pressure is pushed into the radiator from the engine having a blown head gasket or a cracked head I have a z71 Tahoe with no heat front or rear.

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Hello, thank you for writing in. The vehicle may not be allowing the hot coolant to enter the heater core. If the rest of the cooling system seems to be working well, the heater core is likely your problem.

You need to see if the mode door actuator is working.

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This actuator is on the evaporator case on the driver's side above the gas pedal. You have to remove the knee bolster for access. If this is the Recent Vehicle Engine Cooling Inspection reviews.Having trouble finding your part?

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freightliner heater control valve location

Freightliner Dash Control Module Parts. Refine your search results. Detailed Detailed View List View. Palmyra, Pennsylvania. Truck Year Truck Make Freightliner. Truck Model Cascadia. Call the following number for the part. York, Ontario. Truck Model Cascadia Auto transmission, DD15 engine. Call for details Freightliner Columbia Dash assembly with 5 gauges, 10 switches, parking brake and trailer brake, Call us today, we ship everywhere.

Bruceville, Texas. Good used pullout.Discussion in ' Trucks [ Eighteen Wheelers ] ' started by tedcohenNov 18, Log in or Sign up. Find Trucking Jobs.

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Nov 18, 1. I've read that this so-called "bunk air valve" can go bad and cause over-pressurization of my coolant system.

Anyone know where this valve is or what it looks like so I can find it and examine it? Thanks all. Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided. There is no charge for this service, but standard message and data rates may apply. Nov 18, 2. There are coolant lines running to sleeper heater.

Look for H-shaped valve. Pablo-UANov 18, Nov 18, 3. Nov 18, 4. It will have an air line to it, many times you have to remove the cover to see it, If it goes bad it will continue blowing air into the cooling system when the truck is shut off.

I would say it is a "T" shape the coolant makes a 90 degree turn threw the valve. To test it without dismantling it I use to put an air line in the system from the heater control in the sleeper dash, with a guage in it put in the air, close the ball valve, if it leaks down and there is no leaks at the fitting it is Junk Just a thought!

JohnP3Nov 18, Nov 18, 5. It's right at the heater core only about 3 inches of hose between it and the core and it has an air line and wires going to it. Need any help finding the heater core?

It's under the bunk, passenger side.

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Need directions to the bunk? I re-plumbed mine and used a Kaiser valve like on the cab heater line and tossed the electric over air valve. Semi CrazyNov 18, Dec 3, 6. Dec 4, 7. The air valve is right next to the bunk heater core. Just lift your bunk, the heater box is on the passenger side. You will see a little plastic valve in the heater core hose with an airline going to it.

I believe it is the only airline in that area. You can see if it's your problem by taking the airline off and plugging it. GrapeApeDec 4, Dec 4, 8. Show Ignored Content.Discussion in ' Trucks [ Eighteen Wheelers ] ' started by mrbamcclainNov 5, Log in or Sign up. Find Trucking Jobs. Nov 5, 1. I have a '98 Century with an N I'm not getting any heat to the front of the cab. I opened the valve and the sleeper has heat. Am I missing another valve somewhere? Yes, let employers and TruckersReport text me with new opportunities, job alerts and other career information to the number I provided.

There is no charge for this service, but standard message and data rates may apply.

Freightliner Century Heater Valve

Nov 5, 2. Nov 5, 3. I only see one valve in the lines. Nov 5, 4. Is your coolant level up? Have you tried moving the cab control back and forth a few times?

Problems like this are common this time of year the first time we need heat. Nov 5, 5. Yes, coolant level is in the normal range. I've tried the control but nothing helps.

Would there happen to be a vacuum operated blend door behind the dash like in my four wheeler? Nov 5, 6. Nov 5, 7. I've tried it set to recirculate and fresh. Both lines feel warm to the touch. Neither too hot to hold a hand on. Nov 7, 8. The coolant does not have a flow control valve it regulates the preasure with the blend door of the heater.

It is posible you heater core is plugged, especially if you do not have a water filter. The blend doors are air operated same as the vacuum ones, only backwards, cars have vacuum trucks have air.Our new search experience requires JavaScript to be enabled. Please enable JavaScript on your browserthen try again. Save freightliner heater to get e-mail alerts and updates on your eBay Feed. Unfollow freightliner heater to stop getting updates on your eBay Feed.

You'll receive email and Feed alerts when new items arrive. Turn off email alerts. Skip to main content. Refine your search for freightliner heater. Refine more Format Format. Items in search results Vehicle finder tool Find parts for your automobile Select a vehicle:.

Where is bunk air valve on 2000 Freightliner FLD 12064ST ?

Search refinements Categories. Automotive 2, Consumer Electronics Format see all Format. All Listings filter applied. Buy It Now. Brand Type see all Brand Type. Aftermarket Branded Unbranded Genuine OEM Not Specified Brand see all Brand. APDI Gates Spectra Premium WD Express Warranty see all Warranty. Unspecified Length Condition see all Condition.The purpose of a heater control valve is to control the flow of engine coolant to the heater core, located within the passenger compartment.

When the heater or defroster is turned on, warm engine coolant passes through the heater core. Here a fan forces air across the surface of the heater core and then into the passenger compartment where the warm air is felt.

During times when the air conditioner is in use, the heater control valve closes, preventing engine coolant from entering the heater core. The result is less heat in the passenger compartment, allowing the air conditioner to work more efficiently.

Follow the step-by-step guide below for directions for replacing a faulty heater control valve. Step 1: Disconnect the battery. Loosen the hold down nut and bolt from the negative battery cable end and remove the connector from the battery post.

This will prevent any shorts from damaging the electrical components. Step 2: Raise the vehicle. If you can not easily reach the lower radiator hose, jack the vehicle up and secure it on jack stands to gain better access. Step 3: Place the drain pan under the vehicle. In order to catch the coolant that will be drained, you will need to put the drain pan underneath the lower radiator hose. Step 4: Remove the lower radiator hose. Remove the lower radiator hose from the radiator by first loosening the clamp and then gently but firmly twisting the hose to ensure that it is not stuck on.

Step 5: Locate your heater control valve. Some heater control valves will be located in the engine compartment at or near the passenger side firewall. Others are located behind the dashboard near the passenger footwell. Refer to the factory service manual for your vehicle to determine the exact location. In this guide, it is assumed that the control valve is located behind the dash.


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