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I would say it would be unusual to see exhaust without hearing a leak. If the car is warmed up, then you would not see it. It may be oil or ATF burning off on the cat or pipes. I had the rear cam plug on my 94 spring a leak a couple of weeks ago. It dumped oil down the back of the motor, and then blew onto the exhaust pipe making some smoke. Speaking of which, a Stanley 6 inch flat mending strap form Home Depot makes a great ready made cam plug retainer. The pre-drilled holes line up perfectly with the drilled and tapped holes in the head.
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Gary Gilliam Sumerduck VA, '94 940 Regina 169k '86 240 198k
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