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P1860 Code

Tiny
HELLOHIWELCOME
  • MEMBER
  • 1999 CHEVROLET SUBURBAN
  • V8
  • 4WD
  • AUTOMATIC
  • 238,700 MILES
I have a P1860 code and my vehicle stops and stalls when I shift it to Drive, 3, 2, or 1. It runs and idle fine on park, neutral, or reverse and drives when it's on reverse, but when shifted to Drive, 3, 2, and/or 1 it dies. What is the problem and how can I fix it? How much would it cost if I took to a mechanic? Thank you!
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Wednesday, May 30th, 2012 AT 7:45 AM

5 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
DTC P1860 TCC PWM Solenoid Circuit-Go to this link for more information: http://www.ls2.com/boggs/a4/DTC%20P1860%203.8.htm
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Wednesday, May 30th, 2012 AT 8:53 AM
Tiny
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  • 20 POSTS
Do you know how much it will cost if I take it to a mechanic?
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Wednesday, May 30th, 2012 AT 3:19 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
It varies with location
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Wednesday, May 30th, 2012 AT 10:36 PM
Tiny
HELLOHIWELCOME
  • MEMBER
  • 20 POSTS
Since my vehicle shuts off and stalls and cannot drive in the folling gears; Drive, 3, 2, and 1, do you think I need a new transmission? Is my transmission bad or is that because the P1860 code is on? Is the torque converter clutch pulse width modulation (TCC PWM) solenoid valve, the problem, not letting it to drive in those gears? Please, let me knoww! Thank You!
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Wednesday, May 30th, 2012 AT 11:58 PM
Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Most likely, the trans will have to come out. The only way it wont is if a trans shop finds a wiring issue.

As far as price, you will be spending money, about 100-150 just for the diag and then the repair on top. Trans work is never cheap.

Roy
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Thursday, May 31st, 2012 AT 12:29 AM

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