2003 Seville

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Jan 7, 2016 | 10:08 AM

DSawyer

Thread Starter

Junior Member

Joined: 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.

Feb 11, 2016 | 08:55 PM

Adams' Apple

Tech Certified Members

Joined: Sep 2009

Posts: 409

From: Duncanville, Texas

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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