Mechanics

CHEVY PO785

1999 Chevrolet Suburban

Transmission problem
1999 Chevy Suburban V8 Four Wheel Drive Automatic 200000 miles

Works fine, when cold. After truck warms up, first and fourth gears stop working. Starts out in third gear. Doesn't slip, but bogs down. Does not slip or leak and the fluid looks good. Reverse is fine. Service engine soon code is PO785.
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Mkfrd9
February 23, 2009.



Hello
Thanks for the donation.

P0785 Shift/Timing Solenoid Malfunction

You need to replace your vehicle's shift solenoid.

Need replacement instructions for this component? Just ask and you shall receive!

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Bluelightnin6
Feb 24, 2009.