Power Valve for a 1989 Grand Wagoneer.

Asked by FunnyGirl May 19, 2010 at 10:30 PM about the 1989 Jeep Grand Wagoneer

Question type: Maintenance & Repair

Ok I just bought a 1989 grand wagoneer ,  Ran it through emissions and No Go. My carbons were at 216 , and the Nox was at .45 and the Hc was at 6.08. I have read the the power valve can stick and make your carbon really high. So I grabbed My hanes book , and guess what it is not in there . Where is this thing located at . The engine is the v-8 360. I am sooo lost. Also I have no pressure at all on the evap test. Got a big ZERO on that with a note that says no tank line???? Any help would be great ...

1 Answer

papa answered 13 years ago

the power valve is in the throtle body,but it sounds like the cadalatic converter is stoped up,I would have a new one installed,im a state inspector at a local garage,I feel this will solve your problem,also put a can of sea fome in your gas tank,it will clean out the fuel lines and throtle body.

Mark helpful

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