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I have a 2001 4700 INT with a 2000 Allison. Showing 3 codes.

Customer Question
I have a 2001...

I have a 2001 4700 INT with a 2000 Allison. Showing 3 codes. P0841, P0843 and a U2105. Check trans light comes on within 30 seconds of cold start. When engine is warm I restart the truck and the light goes out. When trans reaches 3rd gear light comes back on and it stays in 3rd no upshift or downshift. A restart of engine resets and it is driveable again until next time.

Mechanic's Assistant: Just to clarify, what are the exact lights you're talking about?

Check Transmission light on dash

Mechanic's Assistant: What is the model of your '01 transmissions?

2000

Mechanic's Assistant: Are you fixing your vehicle yourself? What have you tried so far?

Check harness and connectors for breaks and corrosion. Replaced solenoid C.

Submitted: 10 months ago.Category: Medium and Heavy Trucks
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Answered in 23 hours by:
10/1/2017
Technician: Andy, Truck Diagnostic Technician replied 10 months ago
Andy
Andy, Truck Diagnostic Technician
Category: Medium and Heavy Trucks
Satisfied Customers: 2,023
Experience: International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter
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Hi there . My name is ***** ***** Can we start with the last 8 digits of the vin number please ? Thanks

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Technician: Andy, Truck Diagnostic Technician replied 10 months ago

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Experience: International and Isuzu trucks , International, Maxxforce, Cummins and Isuzu engines, Diagnostic and electrical troubleshooting specialist , Hvac and truck /trailer refrigeration troubleshooter

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