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steve wyatt Posted on Oct 15, 2013
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Giving code po 894transmission - 2005 GMC Sierra

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Stephen Bulger

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  • Posted on Oct 16, 2013
Stephen Bulger
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You probably have a "band" slipping in your transmission. Take it to a shop and have the bands adjusted, and have the transmission fluid drained, filter replaced and refilled.

  • Denis Houle Oct 16, 2013

    sorry but band it's not ajustable ,,,,changing oil won't do any good,,,,,,,, seals could be cut and oil change and oil pressure would not be any good

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Denis Houle

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  • Posted on Oct 16, 2013
Denis Houle
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Code P0894 is .... transmission component slipping
pcm look for engine rpm when transmission shift and time
if time is too long to drop it raise oil pressure with the force motor to 1 or 2 psi and retest when force motor is at max, then it code P0894
two things component realy slip or force motor is not able to raise pressure
have oil pressure (transmission) check with scan tool raise pressure of force motor to see if able to

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Fault codes PO 193 FRP -- PO 101 MAF -- PO 380 -- PO a 09dc/dc -- PO 238 TURBO/ super charger-- PO 118 ECT -- PO 283 fuel temp sensor -- U 2023 brake sensor

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Code number for o2 sensor voltage low

Forget to write it down?

Generic or Manufacturer?

There are 41 Generic O2 Codes

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You see what I'm saying ?...Something caused all the misfires...thinking MAP...but not that familiar with the function of the MAP.

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PO 153 =02 SENSOR CIRCUIT SLOW RESPONSE (BANK 2 SENSOR 1)
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PO 171= SYSTEM TOO LEAN (BANK 1)
PO 174= SYSTEM TOO LEAN (BANK 2)
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Engine light on

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