I have a 1999 limited edition ford explorer. While driving it started to jolt as I would excelerate and made a noise. Well the problem became worse while driving the rpms would rev but the truck would not move at all. I pulled over started to do a look over checking for smoke or leaks. I saw nothing. I put the truck into 4x4 high And started to move again. Got off the highway and parked the truck waited a Couple of mins took the truck off 4x4 and put it back into drive. I mad it home but the trans was making a noise like a jet taking off. O/D light was flashing and wouldn't shift into gears. My boss had the truck b4 I did and he had the transfer case rebuilt and the decoder motor replaced. So I got a replacement trans from eBay and had my shop do the swap. I went to get the truck today and took it for a test drive the trans shifts but doesn't shift into 3 or 4 or o/d just stays in high revs and can't go faster the 35 40 mph. Anyone have an idea what could cause the problem. And o/d light still flashes.
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1999 Ford Explorer Question: O/D light flashing after transmission transfer case decoder motor was replaced.
Answer #1robertgrove from WeGo2U Mobile Mechanic, July 06, 2013, 21:19Technician
The shop that did the swap should have the ability to diagnose also. The OD light flashing means there are codes. before the trans was replaced the shop should have pulled codes to evaluate it and clear codes after replacing the trans so they can compare original codes to current codes.
Some electronically controlled transmission problems are related to things outside the trans, tough to even guess without knowing codes and having a scanner hooked up during a test drive to evaluate performance, shift points, pressures and other important data that is required to diagnose it and only available with scanner that had datastream capability.
If the shop that did the swap can't diagnose it find a shop that can.