Question about 1990 Ford F350

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I have a 1990 ford with a 351 and it doesnt have any power at all over 40 mph

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Check for a clogged Air Filter or, quite possibly, a plugged Catalytic Converter.

To check for a plugged Cat, either:
1. Take it to a muffler shop, where they can perform a flow test on the exhaust system.

2. TEMPORARILY unbolt the the exhaust where the FRONT of the converter attaches to the Y pipe coming from the engine. Make sure to suspend the exhaust before taking it for a ride, so it does not interfere with anything or drop to the ground.

Take it for a test ride and see if that cures the issue. Remember, it will be very loud, so try to head to an area that you wont bother too many people.

Posted on Jun 04, 2010

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Posted on Jan 02, 2017

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