Well I guess I spoke too soon when I said both trucks were running perfectly!
We were on a trip outside the city about 400 KM in the Yukon. On the way back the transmission kept Slipping through gears and wasn't able to go above 60 KMPH on the highway. Eventually it started to heat up and Transmission Hot appeared on the DTC. We pulled over, let iit cool, and then towed it back to the city. Spoke to one of the mechanics at the dealership here and he said could be an issue with the sensors and the solenoid in the transmission if not something else and is a common issue on the 4L60 transmissions.
The truck has around 263000 KM on it with the original transmission, last transmission fluid change was around 70000 KM back. The transmission fluid was brownish in colour and smelt burned. The truck seemed to accelerate of the line in 1st quite well then spike between 2nd and 3rd at around 60 - 70 KMPH range with high revs
Should a simple transmission fluid change with the filter be attempted before dropping the trans, or something else you guys would recommend?
I'm just lost atthe moment any feedback would be really appreciated as always
We were on a trip outside the city about 400 KM in the Yukon. On the way back the transmission kept Slipping through gears and wasn't able to go above 60 KMPH on the highway. Eventually it started to heat up and Transmission Hot appeared on the DTC. We pulled over, let iit cool, and then towed it back to the city. Spoke to one of the mechanics at the dealership here and he said could be an issue with the sensors and the solenoid in the transmission if not something else and is a common issue on the 4L60 transmissions.
The truck has around 263000 KM on it with the original transmission, last transmission fluid change was around 70000 KM back. The transmission fluid was brownish in colour and smelt burned. The truck seemed to accelerate of the line in 1st quite well then spike between 2nd and 3rd at around 60 - 70 KMPH range with high revs
Should a simple transmission fluid change with the filter be attempted before dropping the trans, or something else you guys would recommend?
I'm just lost atthe moment any feedback would be really appreciated as always