|
Re: 01 blazer heat issue
Things to check for.
Auto or manual controls?
Make sure rad is full of coolant.
Make sure temp is up tp 195 degrees.
Make sure heat setting is switching good from cold to hot.
Good engine vacuum to heater controls.
Does all vent switching work good?
Check coolant flow to and threw heater core.
__________________
Remember proper testing gives us the answer to many problems.
MT
|