Quote:
Originally Posted by Lee H
My heater will not blow hot air after just idling. It takes being driven a few miles and then it heats up slowly. After 3-4 miles it's really hot.
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You will have to have a system pressure test to see if there is a leak. in most cases you rad cap is weak. Systems need 15 - 16 lbs psi to work right when it's cold. Start by replacing the rad cap first.