2003 f350 water leak on passanger side what is that

Asked by Jun 20, 2013 at 11:14 AM about the 2003 Ford F-350 Super Duty XL 4WD Crew Cab SB

Question type: Maintenance & Repair

2 Answers

233,145

Most probably your AC drain is clogged or another water drain, like the sunroof (if you have one). If it's coolant, then you need a new heater core.

23,835

Normal AC operation and condensation will make a puddle of clear water under the passenger side. If you're seeing an excessive amount of clear water (enough to make a big puddle), you should check to see if the AC compressor is always engaged. Ford stopped putting a diode in the AC clutch circuit and it tends to burn the contacts on the AC relay and make them stick closed. Will run the battery low after sitting for a day or so too. Make sure that it's clear water and no more than about a 1 foot puddle. If it is - enjoy your properly operating AC.

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