Re: Transmission problems
Rave04 said:
I have a 95 Suburban K1500 4l60e trans. The transmission is not shifting properly. The engine will red line taking off If I let off the gass pedal momentarily it will sometimes shift. I checked the fuse it is good but I am only getting 4-5 volts at the fuse. Shouldnt I be getting 12+. I checked the fluid it smelled horrable. I changed the fluid & filter and it changed nothing. Any help would be great.
Thanks!
I might be a little late, but my 97 was doing the same thing. Doesn't shift hard when it's cold, but only after it warms up. Changing the fluid & filter didn't fix the problem. I thought it was toast as the fluid was almost black again. You might have noticed the fluid bubbling on the dip stick. I have a friend who owns a tranny shop in Tennessee. He said there is a problem with the valve body. A piston gets tight and wont slide. Gm wont acknowlege the trouble for fear or having to do a recall and the trans shops usually know they can sell a rebuilt rather than an easy fix. (or they dont know about it) He told me this: If your trans is not going into overdrive (lockup), then drive in 3rd gear. this will save the tranny. When you have it in OD position, and it doesn't lockup, the tranny will not cool, but you force it to cool when driving in 3rd. I drove it 150 miles to his shop, I had to drive in 3rd gear the last half of trip, he removed the valve body, he had a special reamer and hand reamed out the hole, put in a bigger piston, put the valve body, new filter and fluid and I haven't had a problem with it since Feb 05. So good luck