The first thing I would do is check the Transmission Control Module (TCM) for stored codes.
To call
up codes, cycle ignition switch on, off, on, off and on within 5
seconds. Stored codes will be indicated by flashes of the check engine lamp. The codes will be indicated as two digit
numbers, with a four second pause between codes. An example of a code
scan is as follows:
- Power Loss/Check Engine Lamp illuminated for approximately 2 to 3 seconds as a bulb check, then turns off.
- Lamp flashes 2 times, pauses, then flashes 6 times.
- Lamp pauses for approximately 4 seconds.
- Lamp flashes 3 times, pauses, then flashes 1 time.
This would indicate that code 26 and 31 are stored. The lamp will continue to flash until all stored codes have been displayed.
If we are lucky we'll get some codes to work with. This will show you any transmission codes.
I found that a code 31 on a 94 Voyager indicates an evaporative emissions problem, but I'm not sure whether that code applies to your car as well. Have the ECU scanned at AutoZone and see what comes up. They'll do it for free and will give you the codes. Then you can post them up and we'll see what we can do about them.
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