teddy_dc2

for a while now the teg takes forever to warm up. driving to work like 15 miles away the temp only reads a little past the starting point and car doesn't seem that powerful at top end. could it be a bad thermostat like stuck open? is this bad? car is turbo and using an aftermarket civic radiator btw.

mouab18c1

iTrader: (5)

could be a bad theromstat...you could also have air bubbles in your coolant system.try replacing the thermostat with a new one..their cheap

teddy_dc2

haven't replace the thermostat since i got the car like three years ago and haven't change the coolant for almost a year and a half. will this cooling problem affect the engine? seems my vtec doesn't work properly when it is cold.

mouab18c1

iTrader: (5)

yes your coolant systems affects your vtec alot...vtec only engages to full potential when your car is at normal operating temps...like i said best way to go on this is replace the thermostat...and bleed your coolant when you install the new one...check for leaks anywhere...that could also be a cause

honda1982

I thought for sure Vtec engage when there's good amount of oil pressure not COOLANT temp..Maybe I'm wrong...

alteclansing

nope V-tec only engages once the motor has warmed up.

mouab18c1

iTrader: (5)

correct vtec only engages when the motor is at normal operating temps...if not it will cut off

ekb16

iTrader: (1)

ur tstat is stuck open..happen to my car a few months ago