I CALLED THE TRANSMISSION SHOP GAVE THE CODE ...

1999 Cadillac Escalade

Tiny

HUNTRS

October, 17, 2012 AT 7:37 PM

I called the transmission shop gave the code (1870) and I was told it would cost around $1600 to repair, I just want to know if the transmission needs to be completly over hauled. Also could the transmission pressure manual valve position switch be bad, and would it cause this problem.

2 Answers

Tiny

ASEMaster6371

October, 17, 2012 AT 7:48 PM

You need to have a shop look at it first. A guess over the phone is hardly a diag.

Yes, the valve can be replaced but damage may be done.

The price is good.

Get another opinion.

Roy

Tiny

KHLow2008

October, 17, 2012 AT 7:51 PM

A TFP manual valve position switch (Pressure Switch Assembly) malfunction could
set DTC P1870. Ensure final drive ratio matches PCM calibration. The following
mechanical conditions could set DTC P1870: lShift solenoids.
TCC solenoid.
TCC PWM solenoid.
Internal transmission failures.
Engine misfire.
Transmission range switch DTC.

Code indicattes slipping so high possibility the trans has to be rebuilt.

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