I had a bad head gasket a few years ago --- or so my buddy (a 25 year VW mechanic with a dealer) was convinced. He begged me to take it to his favourite rad shop and have them put a sniffer on it to confirm. I did so --- the dude in the rad shop used a sniffer all right. He opened the cap to the expansion tank and put his nose to it. He said "yep give her a sniff" I did and, sure enough, could smell exhaust in the coolant. Pretty sophisticated equipment :-) Worth a sniff anyway :-) Cheers, Doug On Sun, Apr 25, 2010 at 11:31 PM, Karl Wolz <wolzphoto@q.com> wrote: > Don, > > I'm with Mark on this one. If you have a friendly mechanic, he can use a > "sniffer" to detect the presence of exhaust gasses in your pressure tank - > a > pretty sure confirmation of our diagnosis. > > Karl Wolz >
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