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Cadillac Repair/98 cadi seville

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Question
my car has no heat though the vents but the defrost does work. it work the first night but when i drove it the next day it wouldnt work the blower moter still kicks on. what can i do to fix it?

Answer
Has there been ANY work of any kind performed in the engine compartment or on the inside of the vehicle.

If NOT, This sounds like a vacuum problem whereas you have a broken vacuum line and the AC/heater programmer is not getting any vacuum.

This will require more pictures than this website which is not mine allows. Therefore, E-mail: onlineautohelp@msn.com

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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.

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Held over 15 GM certifications prior to retirement in 1989.

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

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