Medium and Heavy Trucks

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I need to know how to troubleshoot a lockup solenoid on a…

Customer Question
I need to know...

I need to know how to troubleshoot a lockup solenoid on a caterpillar th48-80 transmission

Mechanic's Assistant: Sometimes things that you think will be really complicated end up being easy to fix. The Heavy Equipment Mechanic I'm going to connect you with knows all the tricks and shortcuts.

Thank you

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

I have changed the TCM the wiring harness and main power to the wiring harness

Mechanic's Assistant: Anything else you want the equipment mechanic to know before I connect you?

It gives me the error current above normal

Submitted: 2 months ago.Category: Medium and Heavy Trucks
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Answered in 15 hours by:
5/31/2018
Technician: Daniel Wilson,
 replied 2 months ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 2,825
Experience: Owner at DJ Wilson
Verified
Hi my name is***** be glad to help. Please post the serial number of your machine and also the fault code numbers in their entirety that you have logged in the ECM history. We can follow up as needed on here
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Customer reply replied 2 months ago
I dont have the ability to log into the TCM it's a transmission not an engine
Technician: Daniel Wilson,
 replied 2 months ago
Sir what I mean is please post all fault codes logged in the machine memory. I was field service for my local Cat dealer in New England. Do you have caterpillar ET access? Do you have any fault codes or error and warning messages?
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