2007 LBZ Limp Mode - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 10 (permalink) Old 11-03-2012, 01:20 AM Thread Starter
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2007 LBZ Limp Mode

I was pulling my boat today (about 10K Lbs) and about 30 miles into the trip and right before a huge bride my truck went into limp mode. 2000 RPMs max. No choice but to limp over the bridge and get to where I needed to go. Dropped the boat off and even unloaded wouldn't come out of limp mode. Once I disconnected the batteries it cleared and all is well. What causes this? Fuel issues? Allison laying down on me?
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post #2 of 10 (permalink) Old 11-05-2012, 05:08 AM
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are you running any tuner on the truck, have you done anything to the truck, like exhaust/intake?

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post #3 of 10 (permalink) Old 11-05-2012, 10:15 AM Thread Starter
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Bone stock. Always has been. Truck has about 140k miles on it.
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post #4 of 10 (permalink) Old 11-05-2012, 10:26 AM Thread Starter
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Bone stock. Always has been. Truck has about 140k miles on it.
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post #5 of 10 (permalink) Old 11-05-2012, 11:37 PM Thread Starter
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Pulled the code. Said it was low fuel rail pressure. Hopefully it's the fuel filter an not the pump.
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post #6 of 10 (permalink) Old 11-06-2012, 11:17 PM
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how old is the filter, if its old then it would be good to change it. you might also want to consider a fuel rail shim kit

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post #7 of 10 (permalink) Old 11-07-2012, 12:00 AM
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Agree with^^^. Also fill out signature to aid in receiving help.

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post #8 of 10 (permalink) Old 11-07-2012, 12:02 AM Thread Starter
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The fuel filter is only about 5000 miles old. It's a Baldwin brand filter and I've heard after the fact that they are cheap filters. So it could still be the filter. After researching this issue, just today I ordered the shim kit. Fingers crossed!
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post #9 of 10 (permalink) Old 11-07-2012, 12:03 AM Thread Starter
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Agree with^^^. Also fill out signature to aid in receiving help.
Good idea, I will do that! Thanks guys!
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post #10 of 10 (permalink) Old 11-07-2012, 05:31 PM
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yeah, it pays to get a good filter

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