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1998 Chev Tahoe Other - Windows & Glass
Question: When I accellerate or start up a hill I can hear water sloshing around. It seems to be coming from in front of the dash. With my ears it could be anywhere. I keep looking for a stopped up drain, but no luck so far.
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Technican: Hello, Does your a/c condensation drain for the HVAC case work? If the drain is blocked and you have been using the a/c the condensation will back up in the case. It can overflow onto your carpet.
Is the vehicle low on coolant and you may be hearing coolant circulate through the heater core?
Owner: I ran the car with the a/c going for 15 minutes and didn't see any condensate under the car. This makes me think that must be it. Next problem is that I crawled around under the car and couldn't find the drain. I am looking primarily just inside the right front wheel. Are there any diagrams available to show me where the drain is?
Technican: I may have trouble finding a pic of the drain location.
It is located at the bottom of the HVAC case and is routed through the firewall at the lowest point of the HVAC case. You'll find the drain on the base of the firewall passenger side. Not in the wheel inner fender.
The drain can be a 90 degree angle rubber boot or even a quarter sized round stopper looking plug with a split in the bottom to allow water to drain and help keep bugs out.
A 90 degree boot type drain can be pushed on too far and hinder drainage. It can be rotated up and not drain.
When you locate the drain be ready to get out of the way when you clear the blockage. You will get wet. If you should find the round quarter size diameter plug with the cross split in the bottom just pull the whole plug out and leave it out.
Please advise.
Technican: Have you located the HVAC case condensation drain? Was it plugged up?
Owner: I never did find it. I sold the car. The new owner didn't seem to be too concerned about it. I knocked a few bucks off the price because of it and seemed happy. I guess we can forget this one.
Technican: Okay, to obtain a refund write to, Site Administrator, .com.
Or, to accept my answer so that I may be paid please click on th "OK TO PAY MECHANIC" button. Here's How To Get Guaranteed Solutions In Minutes
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