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Engine will stall at highway speeds. Usually will

Engine will stall at highway speeds. Usually will re-start. Sometime will go for day with no poblems. Sometimes my do it every 5 minutes or so.....

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Get you're catalytic converter checked it could be clogged or starting to fall appart from the inside... this would cause your described behaviour... second possibility: the signal receiver under the coil pack may have problems like water leaks or bad connections, alot of chevs seem to have this problem, the engins don't like water.

Posted on Jul 24, 2009

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Since the most fuel is used at highway speeds, that is when a mostly clogged fuel filter will show up the most. But it can also be a stuck vacuum relief valve that is supposed to let air into the gas tank. Cap will "whoosh" when removed if that is problem. Carburetor cars can ice up at highway speeds if air intake heater from exhaust manifold not working.

Posted on Jul 24, 2009

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