View Single Post
  #30  
Old 03-12-2014, 10:12 AM
MT-2500's Avatar
MT-2500 MT-2500 is offline
AF - Advisor
 
Join Date: Sep 2005
Posts: 16,690
Thanks: 5
Thanked 121 Times in 120 Posts
Re: Code P1870 again, new valve body already

Quote:
Originally Posted by LoviesAutoRepair View Post
Hi all. New member. I have a 2000 Chev S10 2.2L w/4L60E. Problem is random shift to third at highway speeds. only between 60-65 mph. Other than that it shifts fine, no clunks, no slipping, or hard shifting, has reverse. Code is P1870, intermittent Check Engine light, Intermittent issue. When random shift occurs, still have trans grip when accelerating. Also when shift occurs, release throttle & shifts itself back to 4th, drives fine for a minute or so then downshifts again. Unfortunately, I don't have access to a scanner capable of reading trans data. Any ideas & suggestions would be greatly appreciated. Trans was rebuilt about 18 months ago, recent fluid/filter service, cleaned throttle body, checked brake pedal switch operation & voltage, have yet to check shift solenoid & TCC solenoid voltages. Thank you for your time.
This post is old and need to be put to rest.
Start a new thread and give all info.
And remember you are going to need a transmission capable scanner to get codes and read out data to repair it with out the old shot gun repair of throwing parts at it.
__________________
Remember proper testing gives us the answer to many problems.
MT
Reply With Quote