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Author Topic: Part number for encoder motor sensor and transfer case diag  (Read 130 times)

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roadrunner

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Part number for encoder motor sensor and transfer case diag
« on: October 10, 2018, 12:43:45 PM »

Hello all,

I cant find a part number for the encoder motor sensor (C0327 code) for my 2002 2500.
Dorman 600-120 says only for 2003 and up.

Would anyone that has already replaced one have to correct part number?

Cheers!
« Last Edit: October 11, 2018, 07:03:37 AM by roadrunner »
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2002 2500 Avalanche 8.1, Snugtop,  odyssey Battery, WAAG grill guards, amsoil filters & fluids, hypertech, magnaflow exhaust, mag-hytec diff cover, wheel spacers, Centerline 16x8 with Mickey Thompson MTZ 315/75.

MS03 2500

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Re: Part number for encoder motor sensor
« Reply #1 on: October 10, 2018, 16:34:50 PM »

acdelco
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2003 2500

roadrunner

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Re: Part number for encoder motor sensor
« Reply #2 on: October 11, 2018, 07:03:09 AM »

Thanks, additional question, I suspect that the transfer case clutches are bad.

Would anyone know if there is a way to manually engage the front differential Locking Actuator to see if the transfer case is functioning?

I have no pump rub issue and prior to the C0327 error, when I selected any 4wheel drive options I could hear the motor engage.

Lights on the control button functioned however, 4wheel drive did not work when engaged.

When the front end was lifted off the ground I could hold a front tire and keep it from turning (only did one at a time).

Transfer case fluid smelt burned.

Lots of good info here;
http://www.chevyavalanchefanclub.com/cafcna/index.php?topic=14789.msg1974806#msg1974806

Cant find the just the sensor, will have to order the complete encoder motor.

Does the TCCM need to be reflashed after installing a new encoder motor?

Other posts suggest yes partly because I have an 2002 and following bullentin.
http://askatech.com/AskATechLive/forums/ResourceHandler.ashx?a=5495

Thanks!
« Last Edit: October 11, 2018, 12:57:18 PM by roadrunner »
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2002 2500 Avalanche 8.1, Snugtop,  odyssey Battery, WAAG grill guards, amsoil filters & fluids, hypertech, magnaflow exhaust, mag-hytec diff cover, wheel spacers, Centerline 16x8 with Mickey Thompson MTZ 315/75.
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