2003 Seville

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01-07-2016, 10:08 AM

DSawyer

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Join Date: Jan 2016

Posts: 7

2003 Seville

I have to add about a quart of fluid every month. I cannot find any leaks. Could it be a bad vac modulator valve? Does a seville have a vac mod valve? Any help would be appreciated. Thanks.

02-11-2016, 08:55 PM

Adams' Apple

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Join Date: Sep 2009

Location: Duncanville, Texas

Posts: 409

No modulator on the 4T80E. Check your cooler line hoses that go to the radiator...they will "weep" fluid, and not drip anywhere.

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