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1994 Cadillac Deville 4.9L
I am at a wits end and so are the mechanics. I bought this 94 Deville for $2500 in great condition. I have something draining the battery. I had reconditioned batteries replaced 3 times and they died after 4 to 7 days. I had a new battery that matches my caddy and it died 2 weeks later. The trunk motor is taken out and has to be closed manually. The alternator checks out fine. Please help me.
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Tony92.
GM mechanic cannot find any leaks. Car shifts fine runs good 48,000 mi.
Anyone have an idea where trans fluid may be going?
1) Tranny fluid is cooled by running it thru a small tank inside the radiator. If this leaks inside the radiator, the tranny fluid mixes with the coolant. If this is your problem, you are probably also getting coolant into the tranny, and this is very bad.
2) I'm not sure about a Caddy. But most older trannys have a vacumn controlled modulator valve on the tranny. Look for a vacumn hose running to the side of the tranny somewhere, and it goes into the modulator valve. This valve can be removed. It has a diaphram inside - if the diaphram ruptures, tranny fluid can be pulled up the vacumn line and into the intake and burned like gasoline.