1999 GMC Yukon xl
5.7 liter V8
check engine
Just bought from used car lot
work done to repair = replaced fluid and filter
tech = sf
question = when you take off in drive it takes off but then the engine
revs and rpm are high but the car isnt going very fast
SF:
The e-mail address you left was incorrect so i could not contact you directly.
Sounds by your description that the transmission has lost 2 gear, at least. Several
components internal to the trans. can cause this. It will most likely have to come out
and be disassembled. The check engine light is probably going to have a code p1870-
trans. component slipping. You can go to any large national parts store chain, and they
can scan it for free. You never know, you may have some other codes not related to the
trans., and can give you an idea if any other systems on this used truck are having
problems.
A few other Chevy questions.