Heater not working?
Hey Guys,
I live in Canberra and for those who have been here during winter, its not the most idealistic temperature.
I recently flushed my coolant (if you could call the old stuff that, brown sludge), as my car was always running very hot. Also replaced the thermostat etc.. Now my car is running cold and rarely gets over 1/4 on the temp gauge, and as the engine is cold, the heater is not blowing hot air.
I recently replaced the heater tap around the same time as doing the coolant as it was leaking like hell, and yeah, no difference.
Any help appreciated.
It could be that the new thermostat is faulty and has stuck open.Which wont let the engine get up to operating temperature.Was the replacement thermostat the standard heat range.It could also be a colder range thermostat.
Donating Member
Double check you put the hoses back correctly on the heater tap. I'd also check that the 2 brass pipes under the steering wheel and to the left near your left ankle are getting hot - if not this means coolant is not flowing through the heater. Have you checked that previous owner has not blocked the heater hoses to "fix" a leaking heater? With the gauge on 1/4 the coolant temp will still be very hot....like over 95C.
"If anyone disagrees with anything I say, I am quite prepared not only to retract it, but also to deny under oath that I ever said it." --T. Lehrer
"The secret of success is sincerity. Once you can fake that you've got it made." -- Jean Giraudoux
Cheers Guys I might check both of these.. If someone would be able to get a pic of their heater tap it would be great so I could check. Cheers
The Wagon on Wheels..
Sounds like the heater tap is not opening. If it was working before replacing this and now not working, then its a fair guess. The heater tap is vacume operated, and you should be able to operate it with your mouth by blowing/sucking hard into the vacume ports. If it checks out then re-install it and check theres vacume on the lines and they are not leaking.
Theres a small possibility that the core is fully clogged because of the crap that may have gotten flushed through it. I have never had to back flush a heater core, Im not sure how to backflush a heater core but i could imagine it being a little bit of a pain.
Originally Posted by Blown V6 Hatch
It's cheap and half arsed - perfect fit for a Commodore
Reaper
Donating Member
This is the heater tap. Note the position of the actuating arm in pix one and two - these show the tap on/off.
Last edited by hako; 17-07-2010 at 12:06 AM. Reason: explain.
"If anyone disagrees with anything I say, I am quite prepared not only to retract it, but also to deny under oath that I ever said it." --T. Lehrer
"The secret of success is sincerity. Once you can fake that you've got it made." -- Jean Giraudoux
Ah thanks alot mate, I just got back from the coast but will check this out tomorrow and report back. Cheers for the pics!
Holden special vehicles
**** no heater in the act
My VL Walkinshaw replica project
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