To answer your question, yes air pockets in the system can cause a leak. One of our daily drivers had a leak (coolant loss) internally, no visable loss and we had to replace the intake gaskets, and after we got the car, a couple of days later there was coolant everywhere, large puddles, small puddles, a real external mess. Well we brought it back to the dealer, they pressure checked the car for four hours, yes four hours, needless to say I wasn't very happy, and nothing, no leaks. And about two days after we got the car back again, it just stopped, nothing. No leaks, no more puddles, I called the dealership and they said it was more than likely, a air pocket, and it worked it's way out. And to make a long story longer, smiling, everything is fine. No leaks and the car is running perfectly. But now you could have either, a bad intake gasket, or an air pocket....You should have a pressure check done.
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91 LX Convertible Gray on Red B&M Shift improver kit,ASP red alum. underdrive pulleys, Richmond 3.73 gears, 1 5/8 Flowtech long tube Headers and off road h-pipe, Flowmaster 2-chamber cat-back with S.S exhaust, MSD 6A Ignition with coil,Cap and rotor, Taylor Pro wires, K&N 12" conical filter system, Jet stage 2 performance chip and just purchased some GT40P heads, looking at exhaust, Lentech Street Terminator plus on it's way...
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