I have a '97 C1500, 6cyl, auto Trans. Failed recent inspection. OBDII code P1870. The failure fell under emision-related-problem yet, the code refers to transmission slippage.
1 suggested answer has been a EGR valve.
Anybody have anything on this?
2006-10-19 10:56:52 · 2 answers · asked by steven l 1 in Cars & Transportation ➔ Maintenance & Repairs
Modern electronic transmissions have about 18,000 things that affect the shifting, but none of them would make it slip. Engine sensors can cause overdrive dropout and torque converter unlocking, which is mistaken for slippage sometimes, but you shouldn't get a slipping code from that.
EGR valves are cheap and easy to put in, so lots of people try that just for the heck of it.
2006-10-19 11:20:23 · answer #1 · answered by Nomadd 7 · 0⤊ 0⤋
There is a Technical Service Bulletin (TSB) regarding this failure.
Go Here for the information----->
http://www.my3cents.com/showReview.cgi?id=12520
...and print out the page and take it to the dealer.
And no, the EGR valve, though electronic (Linear) will have no effect on the transmission shifting hard;
Good Luck
2006-10-19 18:34:50 · answer #2 · answered by Ironhand 6 · 0⤊ 0⤋