How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Daniel Wilson Your Own Question
Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 4378
Experience:  Owner at DJ Wilson
65405794
Type Your Medium and Heavy Trucks Question Here...
Daniel Wilson is online now
A new question is answered every 9 seconds

I have an ultrashift transmission. It has trouble down shifting

Customer Question

I have an ultrashift transmission. It has trouble down shifting and won't go in gear at times. Any areas I should focus on to resolve the problem
Submitted: 8 months ago.
Category: Medium and Heavy Trucks
Expert:  Daniel Wilson replied 8 months ago.
Hi Customer, My name is***** will be glad to try to help. First see if you can retrieve any fault codes the TCM and ECM might have logged resulting from this which will help isolate the problem circuit or area causing this. Also, Always verify your batteries test good, All connections between the batteries and starter are clean and tight and there is no corrosion in the harness and connectors to the ECM and TCM modules causing a lox voltage problem. Check for codes and let me know.
Expert:  Daniel Wilson replied 8 months ago.
Click here for the procedure. Let me know what you get for codes. Also check for engine codes.Fault codes
Expert:  Daniel Wilson replied 8 months ago.
Here is the schematics and troubleshooting guide to help. Also check for metal/debris in the filter and transmission indicating internal mechanical problems requiring disassembly. Let me knowTroubleshooting