Posted by RobMD on October 20, 2007 at 18:35:31 from (64.12.117.74):
In Reply to: Not enough heat posted by 135 Fan on October 20, 2007 at 18:16:38:
I know on SOME vehicles there is a vacuum diaphragm valve in which lets the heated fluid pass through when you turn the heater. It will stop flow when the heat setting has been met.
HOWEVER, on the newer 1998-up vehicles, i would assume these proportioning valves are electronic. Check along your heater hoses for this valve. Chances are it is plugged up. You may need to replace the heater hoses as well.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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