P1870???? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-25-2009, 08:43 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jun 2009
Location: lake ariel,pa
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
gerryv32 is on a distinguished road
Default P1870????

Hello all this is my dirst post on the forum looks like a great place for info being i have been out of the GM loop for years while i worked for Ford. well i bought my first Bonnie i have owned pontiac'* and chevy'* before but never a from wheel drive. OK with that said i test drove this car has all gears trans fluid looks clean. it needs a passenger side front bearing but i also noticed that one side had a 225/60/16 the driver side has a 215/60/16 which is about 1.77% difference could that possibliy be setting the code? i know in some ford speed sensing is done at the hubs is it possible it could be the hub or the tire size difference? thanks in advance for any help im in North East PA any memebers out here?
gerryv32 is offline   Reply With Quote
Old 06-25-2009, 09:05 PM   #2
Junior Member
 
Toddster's Avatar
 
Join Date: Aug 2005
Posts: 0
Thanks: 0
Thanked 1 Time in 1 Post
Toddster is on a distinguished road
Default

Hello and Great to have you here!!!


DTC Code: P1870 = Trans component slipping

From a Tech II article on this code:

Quote:
Vehicles should be inspected for correct tire size, axle ratio, or calibration. Diagnostic ApproachActionYesNoAttempt to duplicate DTC P1870.
I'm sure other members will chime in to help out better than me.

-Todd.
Toddster is offline   Reply With Quote
Old 06-25-2009, 09:12 PM   #3
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jun 2009
Location: lake ariel,pa
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
gerryv32 is on a distinguished road
Default fingers crossed

im hoping this is the issue because i really didnt notice any thing shifting hard or anything or a leak for that matter. keep the ideas coming thanks guys.
gerryv32 is offline   Reply With Quote
Old 06-25-2009, 09:51 PM   #4
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

[IMG]file:///C:/Users/Bill/AppData/Local/Temp/moz-screenshot.jpg[/IMG][IMG]file:///C:/Users/Bill/AppData/Local/Temp/moz-screenshot-1.jpg[/IMG]CIRCUIT DESCRIPTION

The Powertrain Control Module (PCM) monitors the Torque Converter Clutch (TCC) slip by calculating the difference between the engine speed and the transmission output shaft speed. When the PCM detects an excessive amount of slip when the TCC is engaged, then DTC P1870 sets. DTC P1870 is a type A DTC.

DIAGNOSTIC AIDS


  • Ensure that the vehicle'* final drive ratio matches the PCM'* calibration.
  • Ensure that the transmission will shift through all four gears with the gear select lever in the D4 range.
BillBoost37 is offline   Reply With Quote
Old 06-25-2009, 09:58 PM   #5
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jun 2009
Location: lake ariel,pa
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
gerryv32 is on a distinguished road
Default

so im am correct to think that the tire size differnce from side to side can be an issue with GM as well.
gerryv32 is offline   Reply With Quote
Old 06-25-2009, 10:23 PM   #6
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

You can't have 2 different sized tires from side to side. This causes the diff to spin and can cause problems.
Danthurs is offline   Reply With Quote
Old 06-25-2009, 10:36 PM   #7
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Jun 2009
Location: lake ariel,pa
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
gerryv32 is on a distinguished road
Default

perfect because that is what i thought might be going on i no these newer cars are sensitive to that stuff wasnt sure the GM was or wasnt lucky i am not driving the car yet so it wont be a problem for long because im gonna change the tires as soon as it gets here. i will keep you guys posted on what happens. AGAIN 1 MILLION THANKS TO ALL OF YOU FOR THE INFO.
gerryv32 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
4T65-E p1870 Sonnax repair kits CrimsonBane 1992-1999 2 06-21-2006 09:47 PM
Things always happen to me... P1870 code. alec_b 1992-1999 10 06-17-2006 05:21 PM
Code P1870...What does it mean??? macho_mike21 1992-1999 6 06-11-2005 03:44 PM
DTC P1870 (Transaxle Component Slipping (4T60-E Trans) throb 2000-2005 3 04-17-2003 02:48 PM
DTC P1870 (Transaxle Component Slipping (4T60-E Trans) throb 1992-1999 1 04-15-2003 08:49 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 10:42 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.