Quote:
Originally Posted by MosH
So back to the mechanic today, my temperature guage is still taking forever go up on the morning and never goes up beyong 1/4 when on the highway. He called me and said everything looks good, no error codes this and that the thermostat is working perfectly. I'm not sure how he knows this but I still refuse to believe this is a faulty temp sending unit. What is the best way to troubleshoot this? How can I convince him to change the thermostat again?
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While this may be time consuming, you can always test it the old fashioned way my putting your hands on the upper and lower radiator hose. If both hoses gradually increase in temperature till the motor is completely heated, then your thermostat has failed in the open position...which is better than the closed position that happened to me on a roadtrip in my 7. If the thermostat is functioning the way it's supposed to, which it won't open till around 103*C on the OBC, you should feel a sudden rush of head when it opens up finally. If you can have someone reading the OBC while you're standing there holding the hoses, it couldn't hurt.
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