Join Date: Jun 2009
Location: Lansing Michigan
As finicky as the PCM's in these things are, I don't know what doghouse is offering for an upgrade option, but I'd be hinkey about putting anything other than OEM part numbers in there. If you use theirs and still get the tranny temp light and check engine light, get it out. I know guys have a lot of issues with 2-3 shifting and ptressure sensor codes, but I'm not so sure it's always referring to a bad sensor. Just possibly low pressure due to needing a filter change. I bought my jeep with 132,000 on it. Around 140-150,000 it did the "shift hunting" so I changed the filter and it went away. It had started in again before 245,000 when my engine puked. I swapped in my '04 engine and trans as a unit with about 87,000 on them. I installed my 99 solonoids and pres. sensor with a new filter and got the dash lights and limp mode. Dropped the pan again and swapped the wire harness and dash lights and limp mode went away. Everything good, wioth excellent shifting. Tells me 99 pressure sensor was still good. 30,000 miles later, I am getting the 2-3 shift hunting again, but I'm also due for a filter again, on the tranny that now has around 127,000 or better miles. With that experience, if it still wants to hunt, I would probably change out my original, 99 TPS and see if that helps before I dig into the pan again.
Gray 99 Laredo with '04 driveline wap. Tons of fun coming soon. Steel bumpers. 5 1/2" IRO coils, IRO adj. track bar. Rancho RS9000 Addco rear sway. 2"x.250" DOM long arms with johny joints. Custom A-arm with ball joint delete (J-joint). JK Moab wheels/ 33x 12.5 x 17 Cooper SST. Bushwacker Flares.