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1999 CAVALIER CODE P1870 HOW CAN I FIX THIS MYSELF

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It means that a tranny component is slipping inside the tranny.

Posted on Jun 22, 2009

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Posted on Jan 02, 2017

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How to fix 1999 Chevy Cavalier with a P 1870 code


As far as the oil light on at idle an going off with more rpm's , worn engine bearings , oil pump ! How many miles on it ? P1870 Chevrolet Transmission Component Slipping Look's like you need a new vehicle !

Nov 26, 2016 | Cars & Trucks

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1997 Buick Lesabre Custom 3200. Error codes P1870 & P0740. No prior indication. Drive one block, sounds like axel connections in transmission are binding and rarely slipping.


Code P1870...What does it mean??? - GM Forum - Buick, Cadillac ...

www.gmforum.com > ... > 1992-199
Jun 9, 2005 - Location: Bloomington-Normal, IL 1997 SE ... Default Code P1870...What does it mean??? I got a CE light the other day, and this is the code that was read word for word: P1870 ... No TCC solenoid electrical DTC P0740 ... Code P1870 & Speedometer error, Hi_tork, 1992-1999, 4, 10-16-2011 04:08 PM.

Sep 14, 2015 | Buick Cars & Trucks

1 Answer

How to fix p1870 on pontiac sunfire


how to fix p1870 on pontiac sunfire p1870 manuuf. transmision control code

Mar 15, 2013 | 1999 Pontiac Sunfire

1 Answer

P1870 code


P1870 Transmission Component Slipping/ Transmission Mechanical Transfer Case 4x4 Switch Circuit Failure
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maxidas ds708

Feb 27, 2013 | 1999 GMC Suburban

1 Answer

I have a 1999 blazer I pulled the code p1870 if I change the control solenoid could that fix the problem?


Here is the definition of the code.
I doubt replacing an electrical component would do it.

P1870 CHEVROLET Description Transmission is in 4th gear with Torque Converter Clutch (TCC) engaged and the Engine Control Moduel (ECM) has detected excessive slippage when comparing the input shaft speed to the output shaft speed
Read more: http://engine-codes.com/p1870_chevrolet.html#ixzz26gqhKHvr

Sep 15, 2012 | Cars & Trucks

1 Answer

I have 2 codes from AutoZone P1870 and P0113. What do they mean and can I fix them myself? If so what do I need to do?


P1870 is a transmission fault code having to do with the valve body, probably not a DYI job.
P0113 is a IAT (Intake Air Temperature) sensor circuit problem, could be a bad sensor or just a poor connection.

Sep 13, 2011 | Chevrolet S 10 Cars & Trucks

1 Answer

Got 99 chevy suburban. I got a p1870 code. dont know if its some thing I can fix or shoud take to shop.


the code means that transmission slippage was detcted over consecutive cycles(turing car on and off) it should try to compensate for the slippage so veh remains drivable. if 40 cycles have no problems detected it will reset its self. since the reason its slipping is an unkown, i would bring it to a transmission shop for hopefully free diag to determine the problem. hopefully its nothing or just a solonoid. If you have noticed any unusual trany behavior you could descibe, it may help with a possible internet diag. most home mechanics (myself included in most cases) leave transmission repairs to the pros, but this may depend on your comfort level. i always find that finding the problem is the hardest part or any repair.

Feb 22, 2011 | 1999 GMC Suburban

1 Answer

Check engine light on code p1870 what to do light is on steady


I also have a 99 Lumina and code p1870 means: Transmission Component Slipping/ Transmission Mechanical Transfer Case 4x4 Switch Circuit Failure Now we both know theres no 4x4 in these cars. So I'm going to try to find out about this and try to figure out why the PCM showed this code. When I do, I'll put it on my profile.

Aug 15, 2010 | 1999 Chevrolet Lumina

3 Answers

P1870 code what does it mean


This GM service bulliten might apply to your vehicle:

TSB # 01-07-30-023A
Harsh 1-2 Upshift, SES, MIL, or CEL Illuminated, DTC P1870 Set (Replace Valve Body)
1996 Buick Roadmaster
1996 Cadillac Fleetwood
1996-2000 S10 Blazer
1999-2000 Cadillac Escalade
1996-2000 Chevrolet Camaro, Corvette
1996-2000 Pontiac Firebird
1996-2000 Chevrolet and GMC Light Duty Truck Models
1996-2000 Oldsmobile Bravada
with 4L60-E Automatic Transmission (RPO M30)
Built Prior to January 15, 1999 (Julian Date 9015)
This bulletin is being revised to update the Parts Information

Please discard Corporate Bulletin Number 01-07-30-023 (Section 07 -- Transmission/Transaxle).
Condition
Some customers may comment on a harsh 1-2 upshift and the Check Engine Light or Service Engine Soon indicator is illuminated.
Diagnosis
Typically, these vehicles will have been driven more than 32,000 km (20,000 mi) before this condition occurs.
The scan tool may show a DTC P1870 set as a history code.
A harsh 1-2 shift or DTC P1870, caused by wear in the control valve body, may be difficult to duplicate when the transmission temperature is below 93°C (200°F).
Cause
The condition may be due to wear in the control valve body. This wear occurs in the bore that contains the TCC isolator and regulator valves, and results in poor, or no, TCC apply

Important
DTC P1870 is a type B code. The conditions for setting the P1870 DTC must occur on TWO CONSECUTIVE TRIPS (ignition cycles, with a drive cycle) before setting a P1870 history code.
When the conditions for setting DTC P1870 are met (first trip), the PCM commands maximum line pressure and harsh 1-2 shifts are the result.
This may result in a harsh 1-2 shift with no history code if the conditions for setting the DTC required for the second trip are not met, on two consecutive trips (Ignition cycles, with a drive cycle).

When the conditions for setting the DTC are met, on the second consecutive trip, a DTC P1870 is stored as a history code.
When the P1870 code is stored, the PCM will turn on the Service Engine Soon (SES), Check Engine Light (CEL), or Malfunction Indicator Lamp (MIL).
Correction
Install a control valve body with the revised TCC regulator and isolator valves. These valves are used in all transmissions produced after January 15, 1999 (Julian Date 9015), and all of the service parts currently available through GMSPO contain revised TCC regulator and isolator valves.

Important
If all of the following conditions are true, it is not necessary to rebuild the transmission or to replace additional transmission components beyond the control valve body.

Transmission operation is normal before the transmission reaches operating temperature, or before DTC P1870 is set (no slips, flares, or missing gears).
The torque converter is not blue or overheated.
The transmission fluid is not burned or has no burned odor.
The transmission fluid pan contains no abnormal debris (clutch material, bronze, brass, or metal fragments

Jun 18, 2010 | 1998 GMC Jimmy

1 Answer

1999 Chevy Astro P01870 code


The P1870 DTC code is trans-axle component slipping. In most cases you can replace the transmission control solenoid and it should solve the issue. These solenoids are known to kick this code. Also I would recommend doing a transmission service.

Apr 30, 2010 | 1999 Chevrolet Astro

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