Question about Chevrolet 3500

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Lost forward gears in my 1991 chevy 3500 still have reverse

My truck lost forward gears reverse is the only gear that will work. I pulled the pan fluid smells a little burnt however there is not a lot of sludge in the pan. Could this be the pump or the torque converter was thinking of new filter and fluid. Then trying it again.

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  • 19 Answers

Rebuild,flush,check valve body for valves stuck in bore, what transmission is in that ? 4l60 e or 4l80e or ?????

Posted on Mar 09, 2013

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No ,If it is not going into any forward gear the transmission is slipping end will have to be rebuilt,

Posted on Nov 02, 2012

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Posted on Jan 02, 2017

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SOURCE: 1991 chevy silverado lost reverse

just have someone look at it. like aamco or someone that does a free diagnostic. the tranny will probably have to be rebuilt.

Posted on Jan 02, 2009

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SOURCE: no drive gears

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Posted on Feb 04, 2009

kirkx
  • 2019 Answers

SOURCE: 1999 F250 only goes in reverse, no forward gears.

I believe that reverse is operated by a brake band. So it seems to be stuck. It is operated by a piston, and the seal could have swelled and caused too much friction. But you could loosen up the adjustor so that it is disengaged, in order to get forward gears again. Perhaps you can force the piston to retract as well, once you drop the pan again.

Posted on Jun 26, 2009

  • 118 Answers

SOURCE: transmision ax4n not working

Possible bad valve body in transmission or a clogged transimission filter. The only way to check either is to pull the transmission pan.

Posted on Jul 21, 2009

fischmilch
  • 96 Answers

SOURCE: 89' Chevy Silverado Truck- All gears work but REVERSE

Check the linkage at the transmission. Have somebody move the selector while you watch the linkage move. It might be out of adjustment for reverse, or be binding up.

Posted on Aug 21, 2009

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1 Answer

What would cause a turbo 400 transmission to not go into any gear until it wants to. It will sit for any length of time and then go into gear. after that it shifts fine until you shut the truck...


Sounds like a blocked transmission oil filter or front oil pump problem. Have you had the transmission serviced (e.g. flushed with fluid and filter replaced)?

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You start buy pulling the unit out & having it
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Was pushing snow and heard aloud ping while in reverse and it quit pulling.all forward gears still work. sounded like a u-joint. believe me i no that sound.i drive it like i stoled it. lol.but thats what...


not sure if this is an automatic or manual transmission 1st (automatic)if all forward gears are still working what it sounds like is that the reverse drum in the transmission has come apart. which will eventually cause the forward gears to start to go if thats the case, the rapir for the reverse drum is internal the transmission will need to be rebuilt. you can just put a reverse drum, but my opinion is there will be more damage and while its out might as well rebuild the entire transmission. you didnt mention if it was 4 wd or not and only rarely have i seen a transfer case cause the same issue, once most recently in a f150 with a manual transmission i was working on the chain stretched so bad it lost reverse but had all forward gears. 2nd (manual) could have lost the reverse synchronizer whic again the trans will need to be repaired either with just a syncro or complete rebuild. hope this helps

Feb 04, 2011 | 1999 Chevrolet 3500

1 Answer

Only reverse works. No foward gears.


No forward movement in OD or D, but L2, L1 and R work: Forward sprag is broken. R&R. Try not to run or drive the car or further damage could result.

Do you have manual 1st? If so, can you shift through the gears...i.e. manual 1st to manual 2nd then 'D' then 'OD'??? Only 1st and 2nd gears use the forward sprag unless the LO/Rev clutch is engaged...i.e. 1st and 2nd if in "drive". If you can shift threw the gears manually then, yes, your forward sprag broke.

If no manual 1st then your sprag is not what broke. Sounds like you blew up the rear planet. If you pull the pan and find chunks of iron and steel, then that is probably what happened. If you have reverse then it is not the pump. If the pump was bad you would have no line pressure and it would slip in rev. or no rev. Not the beef sun shell either because you have rev., a broken sun shell would cause no 2nd, 4th and rev. gears. Either way the trans needs to come out and torn down and it will be easily found what went. Good luck and thank you for using Fixya.

Mar 06, 2010 | 1991 GMC C1500

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I have 1998 Chevy Suburban 4wheel drive half ton. Was driving out of parking lot when a loud bang frome the rearend. The car still kept going without further noise. When I got home I found out it would go...


If it slips in reverse and 3rd gear the direct clutches are damaged or the 3rd gear /direct piston is cracked. If 3rd is solid but you lost reverse instantly then the reverse servo or band broke. If this is the case you can tell by putting the truck in manual low one,take off and get up to about 25 mph,normally when you let off the gas your truck would compression brake,with the low reverse band inop truck will coast like its in neutral. If this is the case before pulling the trans,drop the pan and pull the low servo cover (round with 6 bolts w/10 mm heads) If it is broken you can easily fix it by buying a new one for under 30$ from the dealer.

It is very common for the reverse band to break. Probably time for a rebuild.

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1999 F250 only goes in reverse, no forward gears.


I believe that reverse is operated by a brake band. So it seems to be stuck. It is operated by a piston, and the seal could have swelled and caused too much friction. But you could loosen up the adjustor so that it is disengaged, in order to get forward gears again. Perhaps you can force the piston to retract as well, once you drop the pan again.

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It has a bad Low/Reverse Clutch or a bad Reverse Input Clutch, Either way it will need rebuilt to fix.

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Chevy avalanche transmission problems


Hello;
Are you getting the check engine light? If so the electronics may have gone out. You may not need a rebuild but you won't know till you pull the oil pan on the transmission and inspect the contents. You may also have lost the neutral safety switch. It is mounted on the drivers side of the transmission. Check those out first and let me know what codes you get.
For Ponchoboy; the clunking and hissing you hear are teminal root causes. Drop the oil pan and if it has a lot of filings and metal it is time for a rebuild.
Hope this helps; Rate me highly;
Rich
RPM Northwest

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