I have a 1997 GMC 1500 series pickup with A/C installed. For the past couple
of months there has been water on the rubber floor mat on the passenger side
when it rains.
I have not used the A/C as it is winter here in NJ so this is not
condensation. It appears like there is a leak. I took the outside plastic
trim grill off the air intake around the windshield wipers but could see
nothing out of order.
Is this a common problem? Any one experience similar problems? Any
speculation as to what is going on and how to fix it?
Yes window was replaced about 3 years ago. Diamond Auto Glass did the job.
What do you meant they "scratch the paint"? I could see no rust or holes
under the plastic trim piece over the air intake at the windshield wipers.
Since it seems to be coming from the heater box/fan area I assume that is
where the leak would be. Is there any way it could be a hole on the side or
top of the windshield frame and traveling through the frame to get into the
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