Birty Dastards Jeep Club

Tech Forum => Workshop => Topic started by: mcbungie on October 15, 2007, 12:00:13 PM

Title: noisy heater
Post by: mcbungie on October 15, 2007, 12:00:13 PM
hi my heater seems to make a hissing noise when switched on (hot or cold)  noise comes from the passenger footwell. someone had said it could be a leak from my air con .... any ideas???
Title:
Post by: mack on October 15, 2007, 01:32:58 PM
If it's been doing it for a while it is very unlikely to be the air con, if it was all the gas would have escaped by now.

Does the heating/cooling work okay?
Title:
Post by: tim_aka_tim on October 15, 2007, 02:49:38 PM
Mine does that and the aircon is fine. I just turn up the radio.
Title:
Post by: Mike Pavelin on October 15, 2007, 03:43:22 PM
It's probably just the expansion valve in the A/C doing it's thing. Also check all the heater controls work as some of the bits are vacuum operated.
Title:
Post by: mcbungie on October 15, 2007, 05:19:05 PM
aye the heater works fine hot and cold and all controls seem too work fine too
Title:
Post by: greggmo on October 15, 2007, 07:37:16 PM
if the engine is off and you switch the heater controls to the off position and to cold, do you get a pshut noise? if so it is the air actuated stuff working. mine does it. 8)
Title:
Post by: mcbungie on October 15, 2007, 07:48:12 PM
yeh that sounds like mine. thatll do me not really bothered if aircon packed in as its hardly needed up hear in scotland  :shock:   cheers guys