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  1. Speed sensor locations - Chevy and GMC Duramax Diesel Forum

    Jul 5, 2014 · 05 LLY 4x4 Does anybody have a diagram for all the speed sensors? Parts house told me this vehicle has 6 total? I'm aware of 2 in the front and 1 in the transfer case. Sent …

  2. Allison 3000 MH speed sensor | iRV2 Forums

    Nov 6, 2016 · 2005 NEWMAR Dutch Star Freightliner 330 Cat I replace 2 out of 3 speed sensors speedometer and cruise control cutting out thinking could be a short anybody ever have this …

  3. Allison codes- P0727 speed sensor - Chevy and GMC Duramax …

    Dec 27, 2010 · My '01 LB7 is constantly throwing tranny codes of P0700, 0727, 0742. I replaced all 3 transmission sensors (speed, turbine and output) w/OEM sensors. The only time I notice …

  4. MD3000MH input shaft speed sensor failure. - iRV2 Forums

    Aug 30, 2017 · iRV2 Forums > POWER TRAIN GARAGE FORUMS > Allison Transmission Forum MD3000MH input shaft speed sensor failure. Mission Statement: Supporting thoughtful …

  5. Trans problems P0716 P0717 - Chevy and GMC Duramax Diesel …

    Jul 29, 2014 · A buddy of mine has an 04 LB7 and has an intermittent problem with his trans where it shifts very hard and wont upshift past 3rd gear. He scanned it with a cheapy little …

  6. Allison 1000 Gone Haywire ***We finally got it fixed***

    Jun 21, 2017 · The Allison is apparently very finicky about the voltage it wants to operate off of. At first I thought it was mechanical, but after getting weird readings from ignition switch, grounds, …

  7. Input Speed Sensor - P0716 - Chevy and GMC Duramax Diesel …

    Jun 14, 2014 · The input speed sensor was attached to the top of the bell housing, and picked up engine speed from the dimples on the converter -- on all previous Allisons. I think they did …

  8. No VSS signal, no speedometer, help!! - Chevy and GMC Duramax …

    Jan 28, 2025 · I fixed the bent shift shaft in the Allison 1000 6spd, replaced transfer case and the destroyed front driveshaft. The low miles used transfer case I put in it had a newer type speed …

  9. Range Shift Inhibited explained finally... - Chevy and GMC …

    Oct 17, 2020 · Output speed sensor Provides the TCM with a signal it can use to determine vehicle speed and calculate transmission slip. Transmission fluid pressure switch manifold …

  10. P0721 code help - Chevy and GMC Duramax Diesel Forum

    Aug 11, 2011 · Shows a vehicle speed sensor on the output shaft of the transfer case, and shows an output speed sensor on the tail of the transmission. My code shows output speed sensor …