Just had 90k mile tranny service 2 wks ago at the 93k mark. Old fluid looked good, not burnt, no shavings. Replaced filters, fluid, gasket. Drove approx 300 miles with no problems. Parked the GC for a few days and then felt a little tranny slippage problem. After the tranny warmed up no more slipping. Parked it again for another 24 hours and when I used it again the GC would not move in any gear. Let it sit & warm up for 15 minutes- still nothing. Was told to unhook the battery for 10 minutes and see what happens. Did that a few days later. The GC moved but was slipping badly in each gear (3-4 seconds) before engaging but it moved and the trans problem indicator light came on and is still on. Trans fluid is perfect color & is at correct level. Some techs I know don't believe it's the trans. They believe it's a computer problem. They indicated that the trans should not be bad at this mileage. I don't want to take it to a shop that automatically removes & rebuilds the trans without checking for electrical problems if this is the case.

I was able to get a universal scanner but it displayed 'No Code'. I was told that type of scanned won't work. Suggestions on what may be going on??? Other comments??

 

Check the fluid level in NEUTRAL, not park.

 

Let the engine get to temp -about 20 minutes. Was able too move a few feet In D & R. Dip stick showed full. But I noticed that the trans fluid was still cold. Checked the trans housing - cold as if the GC was never started. Also noticed the relays weren't activating when changing gears.

 

It's fixed. After going round & round with a couple of tranny shops I found 2 mechanics who are very familiar with this trans. Both indicated it sounded like a filter problem since I just had them replaced. One indicated that a bad batch of filters were on the market and the symptoms I had were the same as listed on the Bulliten issued about the filter problems. The other mechanic said it sounded like the O-ring on the one filter was not seated correctly. Both diagnosed without actually seeing the car. I went to the closest guy and low and behold he found that the filter that is bolted in had come lose and that the O-ring appeared to be installed incorrectly - WOW!!! Was he correct or what? I was quoted up to $2600 at local nationwide tranny shops. This is only costing a couple $100 because I had some other mnior work done.

I'm going to pick up the GC today!!!

 

Sweet! Glad to here it was a minor problem