2005 GMC 3500 UPDATE
I have recently purchased 2005 GMC 3500 diesel 6.6. Drove the truck this morning everything was fine. When I left work truck shuddered between 50 and 60 mph when under acceleration transmission temp w...
Forum Discussion
A new fuel filter will never hurt any engine. With diesel, it is particularly important to have a clean fuel filter.
Check the transmission fluid. If it looks dirty, then have all of it changed. For my Ford, I remove one of the oil cooler lines, and put it into a bucket, run the engine about 2-3 minutes to pump out most of the fluid from the transmission reservoir and torque converter. Then removing the pan and changing the filter in there is really easy. I found that the magnet inside the pan also has a lot of metal shavings on it when the RV was 15,000 miles on it.
If you are running 200F while not towing, then a larger transmission cooler will really help things out. . . If you live where it snows, then a self regulating cooler is required, where it would be bypassed until above around 180F.
Good luck,
Fred.
Check the transmission fluid. If it looks dirty, then have all of it changed. For my Ford, I remove one of the oil cooler lines, and put it into a bucket, run the engine about 2-3 minutes to pump out most of the fluid from the transmission reservoir and torque converter. Then removing the pan and changing the filter in there is really easy. I found that the magnet inside the pan also has a lot of metal shavings on it when the RV was 15,000 miles on it.
If you are running 200F while not towing, then a larger transmission cooler will really help things out. . . If you live where it snows, then a self regulating cooler is required, where it would be bypassed until above around 180F.
Good luck,
Fred.
