The heater valve is integral to a vehicle’s cooling system. Replacing one needs a brand-new valve, some basic tools, and also fresh coolant.

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Step 1: Disconnect the battery. Ease the organize down nut and bolt indigenous the negative battery cable end and also remove the connector from the battery post. This will certainly prevent any kind of shorts from damaging the electric components.

Tip: If the automobile is an automatic with a shifter in the console, you may want to place the vehicle in short gear prior to disconnecting the battery to provide you an ext space to work.

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Step 2: advanced the vehicle. If you can not conveniently reach the reduced radiator hose, jack the vehicle up and secure that on jack stands come gain much better access.

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Step 3: location the drainpipe pan under the vehicle. In bespeak to capture the coolant that will certainly be drained, friend will must put the drainpipe pan underneath the reduced radiator hose.

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Step 4: eliminate the reduced radiator hose. Remove the lower radiator water tap from the radiator by very first loosening the clamp and then gently however firmly twisting the hose to ensure that it is not stuck on.

Tip: Oftentimes the hose will stick as if the is glued in place. Through twisting, you have the right to break this bond and make it much simpler to remove.

Remove the hose and drain the engine coolant into the drainpipe pan.

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Step 5: find your heater control valve. Part heater manage valves will certainly be located in the engine compartment in ~ or close to the passenger next firewall. Others are situated behind the dashboard close to the passenger footwell.

Refer to the factory company manual because that your automobile to determine the precise location. In this guide, the is assumed that the regulate valve is located behind the dash.

Note: for the steps that follow, girlfriend will require to continue referring come the factory company manual for details about what requirements to be removed and also the location and variety of fasteners that should be eliminated as well.

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Step 6: eliminate the glove box assembly open up the glove box door and also locate the attachments screws located along the outer edge the the glove box. Remove the screws through the appropriate screwdriver or ratchet and also socket. Gently pull on the glove box assembly to remove from dash and disconnect any kind of electrical connectors connected to the glove box assembly.

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Step 7: remove the dashboard. Situate the attachments screws, typically along the optimal edge and bottom edges. There might be other fasteners on the sides, escape on automobile design. Remove the attachment screws making use of an proper tool. Gently but firmly traction on the dashboard and also slowly eliminate it, making certain to disconnect any remaining electric connectors that may prevent friend from remove the dashboard.

Be cautious not to pull on any wire or control cables.

Tip: Take photos of how the wires and cables are routed and also where every the electrical connectors go. Later on you deserve to use the photos to ensure everything is put back together properly.

At this suggest you may see the heater control valve, yet in some cases you will need to remove the heater box to obtain access.

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Step 8: remove the heater control valve find the mounting bolts or screws that hold the heater control valve in place.

Remove the fasteners with an ideal tool and also remove the valve. Pay attention to its orientation.

Step 9: Prepare the hoses. To help prevent leaks, completely clean the interior of any hoses that were removed as well as the ingredient you room reattaching it to.

Step 10: download the new heater regulate valve. Download the new valve in the exact same position and orientation as the old valve.

Step 11: Reassemble the dashboard and glove box. Reinstall the dashboard, gloves box, and also any other components that were removed.

Refer come the photos girlfriend took earlier if necessary.

Step 12: change the reduced radiator hose. Reattach the lower radiator hose and also tighten the water tap clamp.

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Step 13: Refill the cooling system. Usage a 50/50 mixture the antifreeze and also distilled or demineralized water come refill the cooling system.

Step 14: Bleed every the waiting out. To acquire all the air out of the cooling system, friend will need to start the vehicle, revolve the heater ~ above high, and enable the automobile to accomplish normal operating temperature.

Keep topping off the coolant as required until the device is totally full, checking for leaks where hoses were removed and also installed.

Step 15: Clean up afterward. Dispose the the offered coolant in a path that coincides to regional laws and regulations.

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Each automobile model is draft differently; as such it is necessary to describe the manufacturer’s factory service manual for your car for added details. If friend would like a professional technician, such together one indigenous gimpppa.org, to replace your heater control valve because that you, among our cell phone mechanics can work ~ above your automobile at your house or office.