P0777

x MadMAX DIESEL

<<<< No Horsepower
Dec 30, 2008
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Lexington, Ky
Had this code pop up on my truck the other day. Is the B spool the same size as E? Cause I have a reamer for the E spool I've used before. I imagine it needs cleaned/shaped out as well


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Mike L.

Got Sheep?
Staff member
Vendor/Sponsor
Aug 12, 2006
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Fullerton CA
You have a clutch problem. P0777 is an off going clutch not releasing fast enough as the on coming clutch applies. Tie up.
Turbine speed sensor, out put speed sensor, transfer case, or clutch damage can cause this.