Code P0785
2,315

Asked by Jeff Dec 06, 2018 at 03:17 PM about the 1999 GMC Suburban K1500 4WD

Question type: Maintenance & Repair

I install a used transmission in this truck about 2 weeks ago. Customer returned to day saying it was sluggish. Fluid look good and filled to proper level. Truck is taking off in 3rd gear and doesn't shift. I cleared the P0785 code and truck shifted into 1st gear and took off fine. Once it upshifted the SES light came back on and it wouldn't shift past 3 gear. P0785 returned. I want to check resistance value on 3-2 solenoid but I don't have a wiring diagram. Can some tell me what pins to check for the 3-2 solenoid?

1 Answer

Your Answer:

Related Questions

  • Code P0785 1 Answer

    I install a used transmission in this truck about 2 weeks ago. Customer returned to day saying it was sluggish. Fluid look good and filled to proper level. Truck is taking off in 3rd gear and doesn't ...

    1999 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • 99 gmc suburban slt c1500 code p1351 only under wet conditions 1 Answer

    So I got this truck 6 months ago and have had no luck finding a fix 3 mechanics couldnt twll me what is wrong. Or cant replicate problem. Only happens when wet or raining for several hours. Will st...

    1999 GMC Suburban C1500 SLT

    -

    Maintenance & Repair

  • 1999 GMC Suburban k1500 crank no start timing issues... 1 Answer

    219xxx miles... was running just fine but died while driving. code read P1345= camshaft position sensor. i changed the camshaft position sensor, Timing Chain, reset timing chain and rotor in distrib...

    1999 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • Poor mpg on a well maintained, k1500 burb 4 Answers

    1999 K1500 gmc suburban 4x4, LT. I get 10 mpg everywhere, city hwy all between. It never changes 10mpg. Any variance is in the 10.1-10.7mpg. I keep it up, very well, Starts great runs smooth. 150K. ...

    1999 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • HOW TO REPAIR ERROR CODE P0785 ON 2000 VOLVO S70 1 Answer

    ERROR CODE P0785

    2000 Volvo S70 Sedan

    -

    Maintenance & Repair

Shortcuts

Search GMC Suburban Questions

CarGurus Experts

  • #1
    ShadetreeMech
    Reputation
    1,110
  • #2
    Larry Thibert
    Reputation
    970
  • #3
    DanTheMan5160
    Reputation
    660
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Suburban
8 Great Deals out of 475 listings starting at $1,497
Used GMC Yukon XL
13 Great Deals out of 601 listings starting at $13,995
Used GMC Yukon
10 Great Deals out of 836 listings starting at $1,225
Used Chevrolet Tahoe
15 Great Deals out of 853 listings starting at $5,995
Used Ford Expedition
23 Great Deals out of 808 listings starting at $7,888
Used Cadillac Escalade
17 Great Deals out of 380 listings starting at $7,495
Used GMC Sierra 1500
148 Great Deals out of 7,070 listings starting at $3,950
Used Lincoln Navigator
4 Great Deals out of 177 listings starting at $9,869
Used Chevrolet Silverado 2500HD
25 Great Deals out of 1,249 listings starting at $9,990
Used Ford F-450 Super Duty
3 Great Deals out of 149 listings starting at $27,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use. Content will be removed if CarGurus becomes aware that it violates our policies.