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AutoTechGuy
AutoTechGuy, Master Auto Technician / Trainer
Category: Honda
Satisfied Customers: 338
Experience:  ASE Master Certification, ASE Advanced Engine Performance Certification
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how do I change a thermostat for a 94 honda accord lx- ...

Customer Question

how do I change a thermostat for a 94 honda accord lx- thanks in advance
Submitted: 9 years ago.
Category: Honda
Expert:  AutoTechGuy replied 9 years ago.

Hi russell,

Here is the procedure:

Start with a cold engine.
Remove the radiator cap and drain the coolant from the radiator. The drain plug is in the bottom of the radiator about in the middle.
Close the radiator drain valve.
Follow the lower radiator hose up to where it goes into the engine.
The cover the hose hooks up to is the thermostat cover.
Remove the two bolts (you can leave the hose connected).
Remove the old thermostat and the rubber seal that is around it.
Clean the housing and the cover of any corrosion that may be present.
Install the thermostat with a new seal. The air bleed on the thermostat should point up.
Replace the cover and tighten the bolts snugly. They are small bolts so don't get carried away.
Open the cooling system air bleed on the top of the engine.
Fill the radiator with 50/50 water and coolant until the coolant comes out the air bleed.
Close the air bleed and continue to fill the radiator until it is full.
Put the radiator cap on tightly.
Run the car until the cooling fan cycles on and off.
Let the car cool off.
Fill the radiator to the top and the overflow bottle to the full mark.
Have a cold drink, you’ve earned it!

You can find a walkthrough on the draining and filling part here:
http://www.autozone.com/az/cds/en_us/0900823d/80/0c/ef/9f/0900823d800cef9f/repairInfoPages.htm#hd1-1-3


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