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Omega General Help / Re: Another Heating Question
« on: 18 November 2007, 18:00:17 »
hello geezer.if it is the vacume unit you can remove it after the glovebox has been removed and it can be checked with a mitivac or some sort of vacume holding devise that you can see pressure drop off on,but as somebody else has said do check the vac pipes under the bonnet as well and you do have a water cut of valve at the back of the engine that shuts off the water to the matrix when you select cold settings on the heater panel this stops the hot water from the engine entering the matrix so the ac evaporator can work at max cooling without fighting the hot matrix beside it,these do leak and once in a while get stuck but by discriptions ie (gets warm then cold)im sure its an air seeping unit on the hot cold flap.i could be wrong but that has always been the problem when ive came accross it,hope you get it sorted mega 
....ffcgary1 thankyou for the nice comment m8 and im a master tech not just gold,,come on get with it,22 years all total on vauxhall how sad am i
....ffcgary1 thankyou for the nice comment m8 and im a master tech not just gold,,come on get with it,22 years all total on vauxhall how sad am i