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Topic: Heater Cold - Air Lock? (Read 726 times) |
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TomP
Junior Member
I'm a YaBB newbie!
Posts: 67
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Heater Cold - Air Lock?
« on: Jan 11th, 2009, 9:47pm » |
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Scorpio 2.9 12v - No Air Con, No Climate Control
Drained radiator (by removing lower hose) and re-filled tank with new anti-freeze. Heater only blows out cold air, although engine temp guage does reach 'normal'.
I don't think the heater did blow out very hot air before but sure was a bit warmer.
Been reading on the forum about the heater matrix. What are the things to try before thinking about replacing the matrix?
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Heater Cold - Air Lock?
« Reply #1 on: Jan 12th, 2009, 1:00am » |
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Check that the matrix in & out pipes are the same hot temperature when the engine is up to normal running temperature. If the outlet is cold, then you either have an airlock or a blockage 
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hopper
Junior Member
GRIMREAPER
Posts: 78
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Re: Heater Cold - Air Lock?
« Reply #2 on: Jan 12th, 2009, 6:57am » |
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HI,
If it is the Climate Controlled type with the digital display the unit may need to be reset there is a guide how to do this in the fault finder section.
Regards Chris
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Scorpio 24v Cosworth Estate 1995 M reg
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NiceMan
Full Member
I am Real NiceMan.
 
 
Posts: 131
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Re: Heater Cold - Air Lock?
« Reply #3 on: Jan 12th, 2009, 10:16am » |
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Or motor termostat is open all time... Check pipe temp... if out is cold its them maybe warm"radiator" is stuck... I have it stuck and i neen change it to new before start come warm to inside.
Sorry my poor english.
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TomP
Junior Member
I'm a YaBB newbie!
Posts: 67
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Re: Heater Cold - Air Lock?
« Reply #4 on: Jan 12th, 2009, 10:30pm » |
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Thanks for replies.
My car does not have air-con or climate control.
Sorry for such a basic question but where exactly are the matrix in and out pipes?
If the outlet is cold, what is the recommended way for clearing the air-lock or blockage?
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gozz
Senior Member
Been around awhile
Posts: 3475
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Re: Heater Cold - Air Lock?
« Reply #5 on: Jan 12th, 2009, 11:22pm » |
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Tom.
They go through the bulkhead on the offside near the back of the engine,awkward if you need to remove em.You can sometimes force the coolant through the matrix by leaving the filler cap off and giving the engine three or four thousand revs,if you hold the pipes and rev it from the engine you will feel the coolant come through as the pipes warm up.
GOZZ.
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