2001 Cadillac Deville Overheating And No Heat. It's prone to overheating and warping its heads and then overheating even more. A STRONG PERSONALITY In several people's mind, a Cadillac DeVille still remains as a typical large North American car, a somewhat clumsy vehicle that one loves to drive on wide boulevards and highways at cruising speeds.
Like a lot of advanced engines, you get more power but for a shorter than expected time. The look is sharp and smooth, if not exactly sporty. It's hard to keep one of these engines running for more than two to three years between major engine work.
I was told by a buddy that it could possibly be the "Heat Control Solenoid".
Misc clips in critical places are failing as the plastic decomposes or breaks down in the heat of the engine compartment.
Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. The DeVille features seating capacity for up to five, in addition to a long list of luxury equipment including auto climate control, cruise control, keyless entry, power accessories, heated seats and a leather-wrapped adjustable steering wheel with audio. The Cadillac DeVille was originally a trim level and later a separate model produced by Cadillac.