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PT & WB (Twin Axle Pusher Unique Issues) If you have a unique issue with your PT or WB model coach and it can't be answered in one of the other forums here, then this is where you can list it....list your PT Parts here too.

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  #1  
Old 12-30-2014
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KERLEY KERLEY is offline
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Default 6v92 black smoke

So after having gone 100 miles or so I noticed I was blowing some smoke. Black smoke heavy up hills. My temps are perfect thanks to my new radiator. I checked for air restrictions just in case I sucked something in the roof snorkel; no troubles. I am running fuel from April with out any treatment. I pulls strong; runs the best it has in a while. I had a hole in my drivers side flex pipe going to turbo in the past but I replaced that pipe with the radiator. Oil was just changed its not up or down. I blew an injector tip in 07 near Dallas and is smoked worse than this but sounded clacky this doesn't.

My bus usually doesn't smoke at all ; little grayish puff when u take off.....

Ideas?
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93 WB-40
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2007 Jeep Wrangler 4-door
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  #2  
Old 12-30-2014
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It's been sleeping for eight months, run it, is it clearing up or getting worse???
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  #3  
Old 12-30-2014
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How is the boost pressure? Black smoke means too much fuel or not enough air. But when you hit the accelerator it does take time for the turbo to wind up.
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Old 12-30-2014
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No gauge for boost pressure. Smoke not getting better still laying it down.
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Marc Kerlikowske
Berrien Springs, Michigan

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93 WB-40
83 PT-40

2007 Jeep Wrangler 4-door
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  #5  
Old 12-30-2014
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The new hose you replaced may be leaking, loose clamp or other charge air hose problem????? If it was real serious there would be a noticeable loss of power.
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1998 LXi
Murrells Inlet, SC
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  #6  
Old 12-30-2014
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Power level seems to have increased and fuel mileage decreased and still smoking
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Marc Kerlikowske
Berrien Springs, Michigan

Member of the 2-bird Club
93 WB-40
83 PT-40

2007 Jeep Wrangler 4-door
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  #7  
Old 12-30-2014
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air filter plugging up
if you can't get a new filter, pull old and see how she does
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  #8  
Old 12-30-2014
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Just talked to Marc a few minutes ago. He said it acts like it is over fueling. Too much power. Can't regulate power with pedal like normal. Tip in to the throttle=black smoke and plenty of hill climbing power. Mash On the pedal and holy moly look at the smoke and tons of power. So the theory is possible governor problem causing over fueling of engine. Dunno. I'm not a Detroit expert.
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Old 12-30-2014
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that engine is all mechanical. have him look at top and see if any cable or bracket has come loose
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  #10  
Old 12-30-2014
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I wonder if it could be related to a turbo shaft seal leaking oil into the intake side and providing more "fuel" (oil) in addition to what the injectors are providing? Oil consumption might not be noticeable in such a short time.
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