what is the purpose of the following (15650497) PRESSURE VALVE - 1999 Chevrolet S10

Asked by Sep 15, 2016 at 09:49 AM about the 1999 Chevrolet S-10 2 Dr LS Extended Cab Stepside SB

Question type: Maintenance & Repair

1 Answer

60,835

My guess is that it relieves the air pressure inside the cab when you close the door with the window up. This makes the door easier to close. It could also be part of the HVAC system as a vent. It is listed as a pressure relief valve.

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