Dodge Durango in Limp Mode

xjdrew

xjdrew

Well-Known Member
Joined
Apr 19, 2010
Location
Goldsboro, NC
I've got a 98 Durango w/ the 5.2L, with the 44RE trans. I had these codes PO753 and PO743 pop up about a week ago. I know they are for the overdrive and shift solenoids. I've actually replaced these sensors before in my other Dodge truck when it started popping these same codes. So, I've replaced all the solenoids in the transmission, overdrive/lockup and the two shift solenoids. As soon as I connected the battery back up, the code was still on, so I erased it with my scanner. But, as soon as I turned the truck back on, the same codes popped up again. So, I changed out the PCM. I had the PCM programmed at the dealership, but the same codes are still popping. I changed out the whole complete wire harness thinking it could be a wiring problem, but with no luck. I've checked the relay fuses. I even pulled out the solenoids again to check the ohms on them and they're reading correct at 31.4. Does anyone think that it could possibly be the TPS or even the ignition switch itself? Right now, I'm just completely stumped that I can't get it out of limp mode:confused:. Any help will be greatly appreciated.
 
transman731 said:
check the transmission control relay.
also check battery voltage.
this code sets (p0753) when the computer sees less than 10 volts on the circuit.
Click to expand...
I swapped the relay with the fuel pump relay already, but I went and ahead and replaced it with a new one this morning, and checked the battery voltage, which was 12.3 volts. Still no results, I don't know if this has to do anything with it but the ABS, and Brake lights are both on, they do turn off periodically, but come right back on. :confused::confused:
 
Unplug the ABS contoller (its integral to the ABS hydraulic unit under the hood). They are known to fail and cause Bus issues. Look for water in the ABS connector, that'll be a dead giveaway.
 
:driver:I got it guys, I'm going to be kicking myself for this one! I was putting the relay in the wrong spot the whole time, i was putting in the starter relay. Now to check the ABS, im going to try that to see whats going on . Thanks
 
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