P1870 code, what to do
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,742
Likes: 1
From: Middletown de
P1870 code, what to do
Got the dreaded P1870 code. Intermittent hard 1 and 2 upshifts, seems to happen at trans high temp, above ~200F. I guess my question is should I replace the valve body or should I go with the TransGo kit. If I go with the kit which one do I need. The one with the reamer tool for $125 or the on with the power valve for $40. Any other suggestions would be helpful. Thanx.
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,742
Likes: 1
From: Middletown de
97 completely stock. I do not get a high temp warning, it just seems to happen occasionally and when it does it seems the temp is between 200F and 213F.
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,742
Likes: 1
From: Middletown de
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
in it's simplist form, the P1870 code says...
with the converter locked, the measured RPM is higher than it should be at this MPH reading.
In other words - slippage is being detected. You can temporarily steer around this code by first resetting it... then driving with the shifter in "3".
with the converter locked, the measured RPM is higher than it should be at this MPH reading.
In other words - slippage is being detected. You can temporarily steer around this code by first resetting it... then driving with the shifter in "3".
Intermediate
Joined: Mar 2008
Posts: 41
Likes: 0
From: Detroit Metro MI
Transgo ... makes a (small) shift kit that comes in a little orange box (PN/ sk 4l60e) thats always worked for me. Its a cheap fix and pretty easy to install. This is there small shift kit and not there full blow shift kit (reprogramming kit) that comes in a large white box.
There directions for the kit are funny to read also. Almost worth the $30 just to read em.
There directions for the kit are funny to read also. Almost worth the $30 just to read em.
Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,742
Likes: 1
From: Middletown de
in it's simplist form, the P1870 code says...
with the converter locked, the measured RPM is higher than it should be at this MPH reading.
In other words - slippage is being detected. You can temporarily steer around this code by first resetting it... then driving with the shifter in "3".
with the converter locked, the measured RPM is higher than it should be at this MPH reading.
In other words - slippage is being detected. You can temporarily steer around this code by first resetting it... then driving with the shifter in "3".
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Thread Starter
Drifting
Joined: Feb 2008
Posts: 1,742
Likes: 1
From: Middletown de
Transgo ... makes a (small) shift kit that comes in a little orange box (PN/ sk 4l60e) thats always worked for me. Its a cheap fix and pretty easy to install. This is there small shift kit and not there full blow shift kit (reprogramming kit) that comes in a large white box.
There directions for the kit are funny to read also. Almost worth the $30 just to read em.
There directions for the kit are funny to read also. Almost worth the $30 just to read em.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Keep us updated !!!
Intermediate
Joined: Mar 2008
Posts: 41
Likes: 0
From: Detroit Metro MI
That's an option; but you really need to discover what's causing the slipping (which is setting the P1870 code). It could be a bad tranny or torque converter (though I hope that's not the case) or just low fluid levels. You'd check the fluid level with the engine running.
Keep us updated !!!
Keep us updated !!!
