HISSING DASH NOISE

2002 Ford Explorer

Tiny

budford02

November, 28, 2008 AT 1:21 PM

Noises problem
2002 Ford Explorer V8 Four Wheel Drive Automatic 104,000 miles

Passenger side of dash has a hissing noise that continues when engine is running. When the accelerator pedal is pressed and car speeds up, it stops for a short time, then returns. What is this?

FOUND 241 RELATED QUESTIONS

1 Answer

Tiny

Dave H

November, 28, 2008 AT 2:04 PM

Sounds like you have a leaking vacuum pipe on the heater controls

Heater Control Valve
The heater control valve is actuated by the heater control valve vacuum switch, if equipped (manual climate control), the recirculation door vacuum circuit (manual climate control) or the heater control valve vacuum control circuit (DATC). When the heater control valve is closed (full vacuum), coolant flow through the heater core is shut off and A/C cooling efficiency is increased.

Please login or register to post a reply.

Instrument Cluster Replacement GMC Yukon
Blend Door Actuator Replacement
Cabin Air Filter Replacement