will not reverse!

[dkspence]

i have an '03 Envoy with about 135,000 miles and now when its shifted into reverse it will not move, it makes a whirring noise when in reverse, but it will work fine in the forward gears. any ideas what could be the problem? please help.

[dkspence]

any input anybody?

[SteveTB03]

I'd have to say that you might need a new tranny or have you checked the fluid level? in my old car it did the same thing then i checked and the fluid was low and as soon as i added some new fluid it was good to go

[the roadie]

I agree. No reverse is a symptom of only two things. Low fluid or something broken. Only you know how often you've been giving your tranny any loving maintenance, and I didn't want to insult your intelligence to suggest that checking the fluid level is the absolute first thing to do. I sort of wish you'd started out your post by telling us that you checked the fluid level and when the last fluid change was.

But if you've never touched it in 135.000 miles, and I hope that's not the case, your vehicle is only giving back what it's been given and it's time to spend some money and get it to a shop before you lose forward gears and have to tow it.

[dkspence]

transmission fluid and filter were just recently changed @ about 130,000 miles, fluid level is good. i was hoping i wouldnt have to replace the whole transmission.

[canam]

was that the first time you changed it ? my father inlaw had a car that he did not change the fluid till like 125000 miles week later trany took a crap!!

[dkspence]

no that isnt the first time it was changed, about the fouth time fluid and filter has been changed.

[the roadie]

OK, so if it's not low fluid or neglect, nobody here could even begin to guess what's broken inside. All I think we can declare, with full certainty, is something inside is broken and you need a professional to look into it. Repair, replace, or rebuild.

Start with thinking about who changed the fluid and filter. Were they a competent, well-regarded transmission shop or a quickie-lube place? If a quickie-lube place, they might have put engine oil or grape soda in your tranny. I wouldn't rule out getting a sample of whatever's in there for analysis in case you have a case against them for idiocy.

If only you'd asked us about rough idle at 135,000 miles, combined with stalling when the A/C compressor kicks in. We do have a solution to that one (if you haven't done it already) - cleaning the throttle body. But transmission internals - you need a hands-on local professional.

[dkspence]

ok now heres the problem. I dropped the transmission, tore it apart and found the teeth on the sunshell were pretty much gone, so i bought "the beast" sunshell, new sungear and rebuild kit. rebuilt everything taking special care i put everything back in, bolted the trans back up, but now it will not do anything but rev up in either reverse or drive gears! any ideas of what could be the problem?

[elementkidd]

Originally Posted by the roadie

OK, so if it's not low fluid or neglect, nobody here could even begin to guess what's broken inside. All I think we can declare, with full certainty, is something inside is broken and you need a professional to look into it. Repair, replace, or rebuild.

Start with thinking about who changed the fluid and filter. Were they a competent, well-regarded transmission shop or a quickie-lube place? If a quickie-lube place, they might have put engine oil or grape soda in your tranny. I wouldn't rule out getting a sample of whatever's in there for analysis in case you have a case against them for idiocy.

If only you'd asked us about rough idle at 135,000 miles, combined with stalling when the A/C compressor kicks in. We do have a solution to that one (if you haven't done it already) - cleaning the throttle body. But transmission internals - you need a hands-on local professional.

Enough Said....