Question about 2000 Ford Windstar

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I know there is a leak on the exhaust before the cat converter. If big enough will it cause bad proformance and stalling with or from low RPMs?

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It can cause engine performance to bad, but an exhaust leak should not cause it to be real bad or stalling. It would usually get louder as you accelerate. Sounds like you have a vacuum leak from the intake area, or one that is stopped up. The vacuum hoses get brittle from the engine heat and start unseen cracks. The rubber hoses are worse. Check each rubber hose going to the intake or off the intake. Look at the ends where it will connect to a connector. If you apply pressure to the hose and you see cracks anywhere on these hoses, it a good idea to replace any that have cracks. A lot of people overlook the maintenance part of the hoses, which should be changed 75,000 - 100,000 miles because these tend to break down. But the hoses will break down quicker just depending on the quality and what people use to clean engines. Also a bad plug or plug wire can cause this also, My dad owns a 2003 windstar and the van did the same thing, it was a bad plug wire, but we changed the plugs and wires since there harder to change. It's fine after the change.

Posted on May 10, 2010

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