would my 1989 Ford Bronco be losing power if the exhaust manifold has a crack in it? and it's making a whistling noise when trying to get up to speed?

Asked by Jun 12, 2014 at 11:41 PM about the 1989 Ford Bronco XLT 4WD

Question type: Maintenance & Repair

the mechanic working on it is saying
that there is a crack in the exhaust
manifold.....

1 Answer

77,905

The common Ford cracked manifold will not cause a loss of power unless you have the 300 cid 6 cylinder engine and the crack has progressed far enough as to negate the manifold hold downs, then there could be a power loss as well as a rough running engine. I would check the exhaust backpressure, that could be your whistle.

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