1998 Chevy S-10 with a 4l460e Transmission Shifting Issue

I believe your problem is a mismatch between engine and transmission. Try contacting. Painless wiring at www.painlesswiring.com/ Or F.A.S.T. at www.fuelairspark.com. Both of these companies should help you integrate with your engine, or allow your trans to "stand alone". Good luck.

You might have faulty shift solnoid

ty for yur info draco

Sometimes problems are caused by the simplest malfunctions. Ex; A pinched or leaky vacuum tube. In your case likely the engine control module "brain" is not receiving the correct information that electronically shifts your transmission into low. There may be something as simple as placing the shifter into the low gear position and then determine whether or not the hardware that connects the shifter to the transmission is actually causing the transmission to be in the low gear position. If the exterior parts are not properly adjusted, they may actually be causing the internal valving in the tranny to not automatically move to the low gear position. Or the hardware on the exterior of the replacement tranny simply doesn't match up with the travel requirements needed to shift the tranny. Just because they are both shifted by sleeved cable, doesn't mean that the travel of the cable is the same.

TMF

,

I had a somewhat similar problem with an 4l80e. The experts told me to check for corrossion in the wiring connector. That wasn't my problem but then a gentleman said he was almost sure it was the "input speed sensor". Dead-on; that was the problem. The ISS is located just in front of center on the driver's side just above the center line.

As I said, mine was a 4l80e but I think they are similar.

If you can't get it figured out, let me know. I'll dig up the web site for the guy who helped me. He's good and likes to help.

Randy

http://auto.howstuffworks.com/automatic-transmission5.htm

A good read, particularly the parts about fluid and solenoid valves:

http://www.allpar.com/fix/trans.html

Even though the above is about Mopar trannys the principles and concerns are the same.

http://www.drivetrain.com/parts_catalog/transmissions_automatics/gm_4l60e_overhaul_kit.html

http://www.drivetrain.com/parts_catalog/transmissions_automatics/gm_4l60e_overhaul_kit.html#Common_failures_on_4L60E

Useful stuff pertaining to your transmission. See the chart of common faults. Particularly the entry regarding shify A solenoid and wiring. You'll have to cut and paste the links. They don't work as copied.

Bob

Good information, and good reading. But all of these are assuming that the engine-transmission combination was working correctly once. We are not sure of this in this case. Especially when we learn that this transmission is being installed into a car that never had this model in it. This could be a perfect working transmission that does not have the correct electrical information sent to it.