I'm looking at a parts-chasing (and band-gear-hauling, motorcycle-moving, and home-improvement-stuff-fetching) van ('93 Chevy G30), and it's in generally seemingly good shape and very low miles for the year, but my dawg does it rev out in first under light throttle before going to second.
Catastrophic mayhem? Bad TPS? Maladjustment? Poor attitude and/or self-image?
I'm assuming 4L80E and not 4L60E based on images I found on teh Interwebz indicating a big round governor gubbin on the 4L60E where this one has an electrical connector. I didn't pay close attention to the pan shape, which I would have if I'd seen this thread first.
The van seems like a pretty darn good deal if this is a simple fix, and a meh deal with a project I don't need if I have to put a junkyard trans in it...
In reply to ransom:
My old '99 C2500 w/ a 454 and 4L80e did that. Shifted really late out of 1st and chirped 2nd even under light throttle. It needed a new trans. I had just bought it used with a warranty and had to fight the dealer for a month to get it replaced. Got a new PCM and a ton of other stuff out of it before they finally did the trans though. They said something was cracked internally. Hopefully yours is different.
Like Glock said, if it also shifts really hard into second, the trans will need rebuilt of replaced. I went through this with my Sierra. The problem is that the lock up clutch goes bad. The computer senses the lack of pressure created by that and increases it to compensate, which is what causes the hard shift. Mine was $1500 to get rebuilt.
Hrm. I wouldn't say it does a hard shift into second, at least nowhere near tire-chirping hard.
OTOH, it sure doesn't sound promising so far...
Thanks for the feedback. Thinking maybe I'd better settle for the somewhat more expensive, less cool-looking, but pretty-much-totally-functional Dodge I'm looking at.
I'm replying to this one more time to bump it up during a more active hour of the day, just in case, before I give up and make an offer on my second-choice van.
The Chevy's just so darn clean, and has amber lights on top! (which would probably get me a ticket when I used them to double-park while loading amplifiers into a club...)
