Ok, my Transmission Stopped shifting this week and will only run in 1 gear. No Reverse and D1-4 run the same. Code P1751 & Flashing D4 which I know points towards the Solenoids but could the transmission be going out?
Also, The fluid on the Stick Looks and Smells ok. Didn't know if a Flush & Fill with newer solenoids would correct the issue. Any help much appreciated.

 

To test when having code P1751 you will need a shift solenoid 'B' and the linear control solenoid 'H' pair A&B.
Drive the car around in 1st 2nd 3rd and 4th in D4. If the code goes away you have fixed the problem. If not, the transmission should be repaired/replaced.

Best to bring it to a transmission specialist whom is familiar with the 98-02 V6 4spd AT. And has a spare set of known good working solenoids.

You can also be ghetto, clear the code and see if the problem and codes comes back after verifying all connections are clean and tight.
Drain and refill the trans with an appropriate cleaner would clean up any built up varnish, and may help unstick a valve as well. Don't flush the trans, it's a low pressure unit, a pressure flush can damage seals.

 

Ok, I'll find a spare set to try But I drove it around the block earlier in all Gears. All gears the same, cleared code and comes back almost immediately even when parked.

 

Can remove the B solenoid and see if the screen is plugged up, see if that changes anything.

 

Ok, I'll take both off and clean em. I've taken the one under the EGR and cleaned it before. I've cleared the code multiple times and still comes back on immediately. Would that be cause the sensor are clogged or a shored wire?
IF I changed them out with another set of solenoids and the code comes on, would that point towards the Trans? Also, engine light is on.

 

Find out what the CEL lamp code is.
Always fix engine CEL codes before addressing transmission codes.
Engine running condition affects transmission operation.

 

Ok Thanks, the P1751 is for the Solenoids. Thats the only engine code that keeps coming on.