BadaBingM3
Well-Known Member
- Joined
- December 18, 2011
- Messages
- 120
- Reaction score
- 14
- City, State
- Las Vegas, NV
- Year, Model & Trim Level
- 1999 4WD 2DR Explorer
So this might be a slightly long description but I'll layout the history and symptoms. I just installed a new engine and 5R55E Automatic transmission purchased from Powertrain products. I have the 4.0 OHV and it started up just fine and runs great except when I try to move forward in D or 2,1. R is a bit better but still there is a dip in rpm's initially. I have made sure I ran through the gears and let the new oil work it's way through all the areas of the transmission, I believe, and it is fully serviced with new oil. The problem actually started a month ago with the old engine and transmission (257,000 miles) Transmission had 95,000 on it. All of a sudden as I pulled out of a parking lot, it stumbled and barely would move in D as I limped home a few blocks away. Reverse was much more functional and I had to get into my garage in 1st gear up a slight incline. That was a month ago with the old transmission.
I decided to put in a new engine and tranny as the old engine was just old and had valve chatter and not worth fixing for the money vs. getting just putting in a new engine. During reassembly, I notice and had to re insulate almost all of the wiring at the transmission cable large blue capped plug that is forward of the shifter lever on the transmission. The wires from the factory as they were twisted and bent to accommodate the blue cover, tore all the insulation. I mention this because I wonder if that day a month ago, something shorted out in the ECM (computer) and that may be the problem <?>. picture of the plug after I cleaned away 20 years of dirt and oil and my fix.
So today I filled all the fluids, primed the engine, got it running, checked the new transmissions oil level, added as required as it was warmed up. No engine check lights related to transmission issues by the way. I will add I should have changed out the shift cable as it is pretty sloppy now even more so with the new transmission and I did have problems starting in P and had to wobble and reset the P detente to get the engine to start. After running in the gears while in PARK, I finally reversed and out of my garage. Seemed to be ok until I tried to move forward in D. Engine stumbled and shuddered even when I gave it a little gas. Barely moved forward. Did the gear shifting from R to D, 2, then 1, then 2, etc. for about 2-3 minutes each gear. Checked oil level, still good. Tried to move forward a gain, felt maybe 5% better but I still struggled to move up the 2 degree incline back into my garage spot. In P or N, engine runs smooth, revs and throttle response is good. I also reset the computer by via wire from the positive terminal to the negative cable disconnected from the battery (wire with alligator clips connecting the two to reset the computer as suggested). What all do you suggest might be the issue? Clearly I don't think it's the new transmission as the problem is exactly the same as it was with the old transmission.
PLEASE HELP!
Cheers!
Rob
I decided to put in a new engine and tranny as the old engine was just old and had valve chatter and not worth fixing for the money vs. getting just putting in a new engine. During reassembly, I notice and had to re insulate almost all of the wiring at the transmission cable large blue capped plug that is forward of the shifter lever on the transmission. The wires from the factory as they were twisted and bent to accommodate the blue cover, tore all the insulation. I mention this because I wonder if that day a month ago, something shorted out in the ECM (computer) and that may be the problem <?>. picture of the plug after I cleaned away 20 years of dirt and oil and my fix.
So today I filled all the fluids, primed the engine, got it running, checked the new transmissions oil level, added as required as it was warmed up. No engine check lights related to transmission issues by the way. I will add I should have changed out the shift cable as it is pretty sloppy now even more so with the new transmission and I did have problems starting in P and had to wobble and reset the P detente to get the engine to start. After running in the gears while in PARK, I finally reversed and out of my garage. Seemed to be ok until I tried to move forward in D. Engine stumbled and shuddered even when I gave it a little gas. Barely moved forward. Did the gear shifting from R to D, 2, then 1, then 2, etc. for about 2-3 minutes each gear. Checked oil level, still good. Tried to move forward a gain, felt maybe 5% better but I still struggled to move up the 2 degree incline back into my garage spot. In P or N, engine runs smooth, revs and throttle response is good. I also reset the computer by via wire from the positive terminal to the negative cable disconnected from the battery (wire with alligator clips connecting the two to reset the computer as suggested). What all do you suggest might be the issue? Clearly I don't think it's the new transmission as the problem is exactly the same as it was with the old transmission.
PLEASE HELP!
Cheers!
Rob