1999 chevy suburban 1500 4l60e

[k1500 97]

Was driving fine all week and one morning i lost all gears. What could be the culprit. No burnt fluid smell. Any help is appreciated

 

[Schurkey]

Broken internal parts?

When my '88 K1500 TH700 did that the second time, this is what I found inside:

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The first overhaul was about the same--planetaries destroyed, no roller bearings left on the planet gears. This was about Y2K or thereabouts.

 

[alpinecrick]

Your transmission broke.

If all your gears aren’t working most likely the sunshell broke, and any number of other parts are wore out, about to break, or already broke.

Just replacing a few parts will almost certainly be a very short, short term solution.

Find a rebuilder, pull the trans and let him rebuild it.

 

[k1500 97]

But when i lost all gears there was no grinding nothing. As like you put it in neutral only 187,000 miles ??

 

[df2x4]

When mine went out it only lost 3rd and 4th both times, but it was exactly as you described as soon as the PCM commanded 3rd. Like it was in neutral, just free-revving.

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[k1500 97]

When mine went out it only lost 3rd and 4th both times, but it was exactly as you described as soon as the PCM commanded 3rd. Like it was in neutral, just free-revving.

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Yea idk. Its a early 99 before the gmt 800s. Isnt there a difference in transmissions say 97 or 98 to work in that. Ive heard adversed things.

 

[HotWheelsBurban]

Yea idk. Its a early 99 before the gmt 800s. Isnt there a difference in transmissions say 97 or 98 to work in that. Ive heard adversed things.

99 Burb is a 400. I've had 2 of em. Burbs didn't go to the NBS till 2000 model year.
The 1999 model year on Suburban went longer than usual, to use up all the parts(and to paint every third one pewter!). My current '99 Burb was built on August 30, '99; normally that would be a very early production 2000 model. Production lines normally shut down in June and July for retooling, especially if going to a totally new model.

 

[k1500 97]

That makes sense cause i have a 97 k1500 it was made in feb of 97 so that would have ment it was from 96 ???

 

[HotWheelsBurban]

That makes sense cause i have a 97 k1500 it was made in feb of 97 so that would have ment it was from 96 ???

No, February '97 born on date is very much a '97. My crew cab long bed, Rawhide, is a '97 model, but he was actually built on September 27, 1996.
From what I've read, the new model production usually starts in August of the prior year.
1999 is a different situation for the Suburbans though, because of the series and design changes. And the Escalade, Denali, Tahoe Limited and Tahoe Z71 were built in 1999 and 2000 model years. And the '99 Classic pickups were built in late '98 and '99 production years, but are 400s as opposed to the regular '99 Silverados that are GMT 800 series trucks (NBS).
Basically the square body trucks and the OBS/400 trucks had some carryover into the next generation trucks. If you have one of these carryover models, you have to be more vigilant when ordering and purchasing parts. Having the VIN number can help with this, and knowing the specifics of what you have and what you need are also helpful!

 

[k1500 97]

No, February '97 born on date is very much a '97. My crew cab long bed, Rawhide, is a '97 model, but he was actually built on September 27, 1996.
From what I've read, the new model production usually starts in August of the prior year.
1999 is a different situation for the Suburbans though, because of the series and design changes. And the Escalade, Denali, Tahoe Limited and Tahoe Z71 were built in 1999 and 2000 model years. And the '99 Classic pickups were built in late '98 and '99 production years, but are 400s as opposed to the regular '99 Silverados that are GMT 800 series trucks (NBS).
Basically the square body trucks and the OBS/400 trucks had some carryover into the next generation trucks. If you have one of these carryover models, you have to be more vigilant when ordering and purchasing parts. Having the VIN number can help with this, and knowing the specifics of what you have and what you need are also helpful!

Thats good to know.