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Join Date: Jul 1999
Location: Placerville, CA
Re: 99 honda civic overheating
I am a Tech for a local Honda dealership. Most of the time we never see any coolant at the tailpipe when there is an overheat condition, however the upper and lower radiator hoses will pressure up pretty fast and be rock hard, we use a gas analyzer and sniff at the top of the radiator neck to check for CO in the coolant. I'd pull the head and get the head pressure checked and inspected for warpage. If it's good then use a HONDA headgasket and also REPLACE the T-stat with a HONDA one. HOW many miles are on the motor and
T-Belt? It might be a good time to replace the waterpump too~ Blown headgaskets in Civic's are common, especially if the T stat has never been replaced and normal maintenance is NOT performed. What is the condition of the radiator?
After re-reading the post I see that you say the car is using water, look at the weep hole on the water pump to make sure there isn't a green crud buildup, if there is it's water pump time too!
'65 Maliblue 406SBC/PG TC #811
'97 HD Softtail Springer
'02 FORD Ranger FX4 Level-II 4x4
'05 Civic Si (had to due to gas prices)
'SFC, U.S. Army RETIRED (Feb 02)