Engine/Transmission (1998.5 - 2002) '99 auto transmission starts in 2nd gear sometimes.

[ProspectorTim]

Sometimes my transmission starts out in 2nd gear. A couple of times when it did it, I manually pulled it down to 1st and it downshifted, so I knew that it WAS in 2nd. I thought maybe it was because I might have rolled through a stop without coming to a COMPLETE stop - but a couple of days ago it did it after I had stopped and waited for pedestrians in a parking lot.



It has done it several times over the last 11 months or so, and lately it seems to do it more often (or at least I *notice* it more often). The torque converter was replaced under warranty last August when it wouldn't unlock, and stalled the truck. Now the warranty is out, and the transmission/ TC started slipping a couple of weeks ago, so I had TripleLoc and Stage 4 transmission installed last week. It STILL starts in 2nd sometimes! I think it may be even more noticeable now, with the lower stall speed.



I figure I'll pull the battery cables and clean them sometime this week, but other than that, does anybody have any other ideas?

 

[phoekema]

Almost sounds like your transmission is goint into limp in mode. I had to have a reflash to cure it in my 98. 5 and then after having the ATS canverter and valve body installed, I ended up adding a 100 ohm resister in the wiring harness. It has to do with increased line pressures. You might check with ATS and see if the resistor is still needed. A good transmission shop should be able to read the codes and that should help point you in the right direction.

A couple ideas, anyway... ... ... .

 

[ProspectorTim]

This started happening almost a year before I upgraded to ATS. Line pressure, etc was stock



Still, I guess it is worth checking it out.

Thanks

 

[OTRPU]

Mine was doing that for awhile, they replaced the shift solinoids a couple times. Seems to have cured it. I ask about getting better quality solinoids, they didn't know of any. Seem some import manu has a lock on the market. Many shops have told me it's a high rate of failure item. Might wanna have um checked out.



Cheers,

Steve J