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Misfire (i believe) when I acc.

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Old 11-30-2010, 06:10 AM   #1
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Misfire (i believe) when I acc.

Ok Ive got a question for you.

2005 v6 TRD 6 spd

when I accelerate it seams to missfire above two grand. Heres the weird part no engine coads or check engine lights coming on. Already changed plugs.

Ideas?
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Old 11-30-2010, 06:19 AM   #2
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Is that supposed to be two grand?
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Old 12-02-2010, 11:26 AM   #3
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No ideas
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Old 12-02-2010, 11:27 AM   #4
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I am not sure I am following you. Are you saying that when you press the gas sometimes the RPM's go up but the truck's speed does not. It only last for a few seconds then the truck goes?
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Old 12-03-2010, 10:11 AM   #5
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I dont believe there is a rpm drop but the truck hesitates.

oh and i am lost about 2-4 mpg
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Old 12-03-2010, 10:18 AM   #6
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I would check to start:

Air filter
Fuel injectors
Spark plug wires
Fuel filter
MAFS
Bad gas
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Old 12-03-2010, 10:34 AM   #7
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This happened in my car '01 Grand Am, it would hesitate off and on when climbing a grade. It clears up when I fill the tank with the Shell or Mobil 93 octane gas.
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Old 12-03-2010, 04:45 PM   #8
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mine has a similar problem. its very irregular but at 3000rpm it drops to idle for a few seconds, then jumps right back to where it should be. ive had it in a couple shops and no one can figure it out. ? still trying to find a solution.
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Old 12-06-2010, 09:30 AM   #9
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The RPM's do not drop and the air filter is new

I have done plugs so next will be trying 93 oct if that doesnt work I am planning on a fuel filter.

The shop said there was nothing wrong with it
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