1999 Chevy Suburban PO785

1999 CHEVROLET SUBURBAN
200,000 MILES • V8 • 4WD • AUTOMATIC
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MKFRD9
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  • 2 POSTS
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.
Feb 23, 2009 at 5:21 PM
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BLUELIGHTNIN6
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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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Feb 24, 2009 at 2:31 AM
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JNKAMID
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My 2005 Suburban is doing the same...my GM technician Tod me it's fixed with a new ignition switch 75% of the time. Many times new shift solenoids don't fix it. Is this what you have found? My appointment is tomorrow afternoon...
Jul 26, 2016 at 1:28 AM
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