Smog pump system
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Mountain Pass
Joined: Nov 2004
Posts: 241
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From: Dayton Ohio
Smog pump system
I recently bought a 89 F 250 and that system has been messed with,the divertor valves must have went bad and replaced with pipes and the pipe going to the cat is gone. Truck has a serious hesitation problem when cold and still does not seem like it has full power when warm and it got me thinking it could be the way the pump system is now hooked up,with the air going to heads and exhaust manifolds at the same time could it affect the oxygen sensor making it not run right. If the pipe going to the cat was still there I would direct the air there but now thinking about getting a shorter belt and not having the pump working.
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danielzink
1978 - 1996 Big Bronco
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May 27, 2005 01:28 AM
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Dec 17, 2004 09:23 PM
