need help asap
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Senior User
Joined: Jul 2005
Posts: 429
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From: new york
need help asap
guys, I have limited internet access. My truck won't go over 55 mph and it feels like it is defueling when you floor it. Put it to the floor and alot of blueish white smoke pours out. HPOP??? If you try to accelerate hard it won't shift and stays at about 2300 rpm. Let off the throttle and it will shift but not accelerate rapidly. In park the truck revs up fine. No tuner or chip in right now. Any help greatly appreciated. Thanks. Dave
Also tach works fine so don't think it's the cps.
Also tach works fine so don't think it's the cps.
Post Fiend
Joined: Mar 2007
Posts: 9,010
Likes: 5
From: Johnson City, TN.
Check the air filter to see if it is clogged. It shouldn't be defueling since it is making smoke, That makes me think not enough air.
Unplug the EBPV valve. The plug is under the turbo inlet, 2 wire. I wiil keep thinking and post back but here you go...
Unplug the EBPV valve. The plug is under the turbo inlet, 2 wire. I wiil keep thinking and post back but here you go...
Post Fiend
Joined: Mar 2007
Posts: 9,010
Likes: 5
From: Johnson City, TN.
My bet is the EBPV is stuck. If unplugging it doesn't work then you can go to the plunger and open it up and wire it open.
I guess it wouldn't hurt to clean the FPR screen but I don't think it could affect it that much and all of a sudden.
I guess it wouldn't hurt to clean the FPR screen but I don't think it could affect it that much and all of a sudden.
Post Fiend
Joined: Mar 2007
Posts: 9,010
Likes: 5
From: Johnson City, TN.
IS there enough oil? and is it in good shape. Sorry for the Duh questions just trying to isolate the easy ones. You may want to check the EBPV to be sure that it didn't close on you manually. just a thought
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
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Senior User
Joined: Jul 2005
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From: new york
i WILL GET A NEW FILTER TOMMORROW. I HOOKED UP THE EBPV TO SEE HOW IT RUNS ON THE WAY HOME. wHICH ONE IS THE TPS? THANKS
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FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
there are 2 connectors in the fuel pedal, one is TPS and other the IVS that you should check.
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Unplug the electrical connector of the MAP sensor (gray sensor on top of the A/C box with electrical connector and rubber hose going to it) and drive it. If it drives better you need a MAP sensor
Thread Starter
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Senior User
Joined: Jul 2005
Posts: 429
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From: new york
TJ if the map sensor is bad,it will have my symptoms? What am I looking to pay for a map sensor? Thanks. Also to everyone else helping, I hooked and unhooked the ebpv and left it in the open position with no change.
Post Fiend
Joined: Apr 2004
Posts: 12,835
Likes: 3
From: Silver Lake Dunes, MI
Yes it could be bad with those symptoms. They run about $150 last time I checked. Just unplug the connector and drive it. If it gets better you need a new sensor.
Lead Driver
Joined: May 2007
Posts: 8,608
Likes: 13
From: Belair md
blue smoke and no accell says o-ring is busted to me. while in park or neutral put the go pedal on the floor. if it runs right up to the limiter then they are most likely fine. my guess is it will rev quick and smooth to 1800-1900 then stumble pop and smoke really bad to about 2700-2800 then spin up to 3400 smooth.
Thread Starter
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Senior User
Joined: Jul 2005
Posts: 429
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From: new york
I want to thank everyone for all their help and suggestions. I've been away from the site for awhile due to some health problems. I'm glad to see the brotherhood is still alive and well. A special thanks to TJBEGGS for hitting it outta the park. It was the the map sensor. Thanks again to all.
Dave
Dave