truck gurus mechanics

[jmvotto]

I have an 03 Chevy suburban with 95k on it. Brought the moomba home about 60 miles today to take to the dealer on tuesday. get boat home no problem using the tow switch. I unhook the boat and run an errand . the Burb now slips at 25 mph to from abou 2000 rpms to 4000 rpms. i ease of on the gas and travels ok at 25 to 30. give it power, high rpms and no response.

Any thoughts. i will be taking to the shop in the morning, hopefully will be up and running for tuesday.. I don't believe it is the serpentine belt.?

thanks for any thoughts in advance.

[02tahoeindiana]

Sounds like its still in Tow/Haul mode? Is it slipping or just down shifting?

[jmvotto]

Its slipping, i tested the switch off and on and it adjusts properly.

[02tahoeindiana]

Hmmm? not sure. Tranny Slipping?

[jmvotto]

I know not good. Going to Michigan on thursday as well.

[02tahoeindiana]

Ya. but i would be suprised if its something that major unless you tow alot, or beat the sh*t out of that Burb. I have and 02 Tahoe with 140,000 miles and never had a major problem. Most of the other people i know with Tahoes or burbs havent either.

[jmvotto]

thanks, i hope not. I tow the moomba 2x a year. the rest is small lawn tractor stuff infrequently.

[02tahoeindiana]

Ya then i cant really see anything major going wrong.
But who knows just one faulty part can ruin everything

[Sled491]

Wouldn't hurt to get the tranny fluid changed just in case. I lost a gear this summer on my Diesel. Drove for a month before I finally lost the speedo as well. So I took it in. Speedo was a wheel sensor and the second gear belt snapped. Instead of a 1500.00 tranny rebuild, I got away with them slipping a new belt in for about 150.00. They told me that they had a 80% sucess rate with just the new belt. So far I have had no problems, including a trip to Canada and back for a fishing trip.

[jmvotto]

sled, thanks that helps I hope i don't need a 1500 rebuild. I was able to get the truck to the service station this am and i should know by noon.