a_a91

is there a DIY for a thermostat on an 04 civic on this forum, or does anyone know how... POST it up

xRiCeBoYx

iTrader: (22)

Drain coolant from radiator
remove thermostat housing
remove thermostat
replace with new thermostat
replace thermostat housing
fill radiator with coolant
bleed coolant system
take a nap

That's more or less it. I think I used my haynes manual as a guide when I did it. If you don't have one, you should grab one. It's a great guide to have.

Mad Dog Tannen

^ Agreed. The first thing you should buy for any car is a service manual.

lazlong

Thermostat DIY:

1. You can either drain the coolant or disconnect the lower radiator hose and put it to the side. You'll lose a cup or two of coolant but, not a lot.

2. Disconnect the connector:


3. Unbolt the housing bolt:


4. Unbolt the other housing bolt:


5. Remove and replace the thermostat (it only goes in one way).

6. Replace the bolts, the connector, and the hose.

7. Bleed the system.