Question about 1997 GMC Safari
As weird as it sounds, the oil level in an automatic transmission can cause a few weird things like this so maybe a seal wasn't put in correcly when they rebuilt and oil leaked out, causing bugs and whatnot since the tranny doesn't have enough oil to build the right pressure to operate completely. And if they rebuilt it though, they should've changed the clutch packs in the tranny, but it could happen that they forgot some, or installed wrong and they broke after a while or a host of other things, cause in some models there are 2 or 3 different clutch packs, one for reverse (but not on all models) one for the normal drive gears (gears 1 through 3) and another for the overdrive (4th). So if the clutchpack for the normal drive gears broke or is too worn out cause they forgot to change it, then it would shift in reverse since the reverse clutch pack is good, and not go into drive cause the driver packs are shot. Although I never did dismantle a safari transmission so i cannot garanty you have a seperate clutch pack for reverse or not, so ask a local mechanic that is used to working with those models if it is possible in this model or not before payin to get the tranny opened again. If it's impossible for the clutch packs to cause this and the fluid level is OK, then the problem is probably in the valve body solenoid pack, and in that case it's bad news for the tranny... valve bodies are muchos muchos money and so is the ammount the garage will charge to change it.
Posted on Jul 17, 2009
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Posted on Jan 02, 2017
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