Allison Transmission Neutral Safety Switch Problems

Nsbu Installation Part 1 Youtube

Nsbu Installation Part 1 Youtube

Gears Magazine Being Neutral The Allison Nsbu Switch

Gears Magazine Being Neutral The Allison Nsbu Switch

4l60e Neutral Safety Switch Youtube

4l60e Neutral Safety Switch Youtube

2011 Duramax Lml Neutral Safety Switch Nsbu Removal Youtube

2011 Duramax Lml Neutral Safety Switch Nsbu Removal Youtube

Switch Neutral Start Backup One Connector Allison 1000 2000 2400 Gm

Switch Neutral Start Backup One Connector Allison 1000 2000 2400 Gm

How To Test A Neutral Safety Switch In Under 15 Minutes

How To Test A Neutral Safety Switch In Under 15 Minutes

How To Test A Neutral Safety Switch In Under 15 Minutes

If the d doesn t light up on your gear indicator this could be the issue.

Allison transmission neutral safety switch problems.

After jumping across the solenoid and getting the engine started the bus had both forward and reverse movement. Here the culprit is often the neutral safety backup switch. I have a p n 29541852 1 connector. Input speed sensor provides the tcm with a signal to measure the rotating speed of the turbine shaft from which it can calculate transmission rpm and slip.

It is part number 29540479. It developed a problem on route yesterday and would no longer drive the bus. You should understand there is a problem if you cannot see the d light up on your gear indicator. If so what problems was your transmission giving you before you replaced the switch.

Neutral safety backup switch issues are another common allison transmission problem on the gm duramax versions. Allison transmission 29540479 nsbu switch kit 2001 2005 lb7 lly 5 speed 2 plug. Has anyone here had to have their park neutral safety switch replaced on their allison transmission. Some of the symptoms of failure include but are not limited to no start condition gear shift indicator on dash not following properly trans stuck in limp mode or fail safe dtc s set indicating pressure switch codes this switch easily installs with just common hand tools.

I suspect neutral safety backup switch as they do get crudded up and i haven t put back my fenderwells since other work. Descriptionone of the most common problems with the allison transmission is failure of the neutral safety back up switch. Our school has a 2007 ih bus with dt466 and 2500pts allison trans. It is part number 29540479.

When i arrived at the bus it would not start due to a suspected neutral safety switch issue. The neutral safety switch is a safety device that only allows you to start your engine when the automatic transmission is in either park or neutral. This switch is the dual plug style that can be found on any 01 05 lb7 or lly. The purpose of the neutral safety switch is to prevent the car from starting while in gear which would cause it to launch forward unexpectedly.

I am currently having some problems with mine including diagnostic codes p1711 and p1713. I have found a tsb 02 07 30 011c that seems to cover my problems. Thanks mike l problem i have is the truck will not shift into high gear and the dealer can t figure it out says go to allison at 35 mph.

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Amazon Com Nsbu Switch 2004 5 2005 Allison Lly 8th Digit Of Vin 2 Automotive

Allison Nsbu Neutral Safety Prndl Switch 29542692

Allison Nsbu Neutral Safety Prndl Switch 29542692

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Amazon Com Nsbu Allison 2 Connector 2001 2004 Lb7 8th Digit Of Vin Is 1 Automotive

Gears Magazine Allison Inhibiting Gear Ranges Or Shifts

Gears Magazine Allison Inhibiting Gear Ranges Or Shifts

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Allison Mt654cr Won T Upshift Youtube

Allison Transmission 29540479 Nsbu Switch Kit 2001 2005 Lb7 Lly 5 Speed 2 Plug

Allison Transmission 29540479 Nsbu Switch Kit 2001 2005 Lb7 Lly 5 Speed 2 Plug

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Allison 5 Speed Tcm Common Issues And Fix Allison 1000 Youtube

Most Common Issues With Allison Transmission

Most Common Issues With Allison Transmission

Diagram 1995 4l60e Neutral Safety Switch Wiring Diagram Full Version Hd Quality Wiring Diagram Heartdiagramlabelled Popup Galerie Fr

Diagram 1995 4l60e Neutral Safety Switch Wiring Diagram Full Version Hd Quality Wiring Diagram Heartdiagramlabelled Popup Galerie Fr

Allison Automatic Transmission Wiring Mechanics Hub

Allison Automatic Transmission Wiring Mechanics Hub

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Allison 1000 Duramax Neutral Safety Switch Prndl 50 1055 Rostra 29541852 35877d Safety Switch Duramax Switch

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Neutral Safety Switch For Silverado Sierra 2500 Hd 3500 Allison 1000 Auto Trans Ebay

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Allison Transmission Detent Lever Neutral Safety Switch 29542692 Part For Sale Online Ebay

How To Spot A Malfunctioning Neutral Safety Switch Carbibles

How To Spot A Malfunctioning Neutral Safety Switch Carbibles

A 2009 Hd Chevy P U 2500 Turbo Diesel With An Allison Transmission The Check Engine Light Came On And The Truck Runs

A 2009 Hd Chevy P U 2500 Turbo Diesel With An Allison Transmission The Check Engine Light Came On And The Truck Runs

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Chevy Duramax W Allison Automatic Shifting Trouble P0773 Youtube

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Amazon Com Neutral Safety Switch For Allison 1000 2000 Series Transmissions Automotive

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29540479 Oem Allison Neutral Safety Switch Silverado Sierra Ship 5c For Sale Online Ebay

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2011 2012 Allison 1000 Valve Body Solenoid Changes Youtube

Safety Neutral Switch Location Cannot Find Where The Safety

Safety Neutral Switch Location Cannot Find Where The Safety

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29511977 Allison Transmission Eaton Neutral Safety Switch For Sale Online Ebay

Details About Allison Lct 1000 Duramax Manifold Pressure Switch 2000 On Rostra 4 Switch 35877 Chevrolet Parts Ebay Fix You

Details About Allison Lct 1000 Duramax Manifold Pressure Switch 2000 On Rostra 4 Switch 35877 Chevrolet Parts Ebay Fix You

2002 Chevy Duramax Allison 1000 Nsbu Module Youtube

2002 Chevy Duramax Allison 1000 Nsbu Module Youtube

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