Pontiac Bonneville is taking on water in the rear passenger well. Where is it coming from?

Asked by pony2000 Aug 23, 2014 at 06:33 AM about the 2000 Pontiac Bonneville SLE

Question type: Maintenance & Repair

My car has water on the floor on the passenger side mostly behind the seat. I thought it
happened when I drove the car, but when it just sits int he rain water gets in.

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BoholMark answered 10 years ago

Look for the sorce by starting around the windshield.

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GuruL69FG answered 5 years ago

My '02 was doing the same thing. Learned from Pontiac club that probably from gutters in sun roof. Traced it to under dash behind emergency brake. GM had never connected sunroof drain tubes to duck lip drain in wheel well. Thus leak leak leak. back foot areas collected water water water. Big job to fix I did it real proud. Ck with Pontiac Bonneville club, pics etc available

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