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About autohelp
Expertise
On hands professional expertise in all aspects of Cadillac diagnostics and repair mid 1970`s thru 2000 year vehicles. GM certified in electronic fuel injection, Automatic transmission, Heating and A/C, and onboard vehicle computer diagnostics.

Experience
Held over 15 GM certifications prior to retirement in 1989.

Organizations
Prior to retirement held several ASE certifications, numerous Factory certifications.

You are here: Experts > Shopping > Vintage Cars > Cadillac Repair > Car Heater

Cadillac Repair - Car Heater

Expert: autohelp - 10/10/2009

Question
My car heater runs awesome while im driving but when I go to stop and im ideling for a bit its freezing cold I have a 1990 Fleetwood Cadillac, what could it be???

Answer
Could be a stuck OPEN thermostat, Fault in the AC/Heater programmer, Faulty vacuum line.

IS or HAS the CHECK ENGINE light ever illuminated while driving the vehicle and or has any other lights illuminated or any messages from the message display center ?.

What work or diagnostics of ANYKIND WHAT-SO-EVER have been performed on the vehicle trying to fix this problem ?.

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