signs of trans or TC trouble th350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

benoit454 · 07-04-2009, 08:34 PM

Ok besides the usual slippage what are some signs of something wrong with a th350 or the torque convertor.

I ask because we just pulled out the 84's th350 which had been switched to a older model th350 because there is no TCC plugin on the trans BUT there IS a TSc or trans spark control on the pass. side trans. We yanked it out, put in a shift kit and a 2k stall, the stall was in my monte carlo and it had the same shift kit, b&m shift imporver setup in stage 2 form. Filled it with fluid and put it back in the truck.

Now we had the pump changed because the gears got broke or something, had pieces of metal in it. The TC also wouldn;t fully seat, so the trans guy said bad pump gears and switched pumps for us.

Now when we drive it it has this sort of a roar/shake/rumble feeling. It doesn't make noise, it's just like something turning isn't wanting to, kinda like the brake dragging, you can feel it, and usually it's seems to be like when it's ready to go from 1 to 2 but isn't because we're on the gas hard, or going from 2 to 3 same deal, ease off the gas and it goes into gear.

Now the trans. doesn't shift anywheres as hard as the one in my monte carlo, it won't chirp tires shifting at all.

The motor in the truck now is the same as in my monte, and only difference is it's the truck long tail th350 and it's 2.73 rear end which sucks. Mine had 3.42's I think the highway gears kills the shift power and all around power, which that's going to get changed.

But this weird feeling it gets would it be the trans. going down or what?

**old Rusty C10** · 07-05-2009, 09:40 AM

anyone? I know mine when they have gone usually lose forward gears then BAM and its done im good for killing a th350 in a year the way i drive

boatpuller · 07-05-2009, 03:17 PM

when mine went.it didn't go into reverse.and was slow to engage in forward gears.reverse was shot.you couldn't even back up a small incline like a driveway apron.

benoit454 · 07-05-2009, 07:44 PM

yea all gears work and go in right away it's just that weird feeling it has, never had it til now.

07-04-2009, 08:34 PM	#1
benoit454 Chris Join Date: Nov 2004 Location: Monaville, WV Posts: 3,737	signs of trans or TC trouble th350 Ok besides the usual slippage what are some signs of something wrong with a th350 or the torque convertor. I ask because we just pulled out the 84's th350 which had been switched to a older model th350 because there is no TCC plugin on the trans BUT there IS a TSc or trans spark control on the pass. side trans. We yanked it out, put in a shift kit and a 2k stall, the stall was in my monte carlo and it had the same shift kit, b&m shift imporver setup in stage 2 form. Filled it with fluid and put it back in the truck. Now we had the pump changed because the gears got broke or something, had pieces of metal in it. The TC also wouldn;t fully seat, so the trans guy said bad pump gears and switched pumps for us. Now when we drive it it has this sort of a roar/shake/rumble feeling. It doesn't make noise, it's just like something turning isn't wanting to, kinda like the brake dragging, you can feel it, and usually it's seems to be like when it's ready to go from 1 to 2 but isn't because we're on the gas hard, or going from 2 to 3 same deal, ease off the gas and it goes into gear. Now the trans. doesn't shift anywheres as hard as the one in my monte carlo, it won't chirp tires shifting at all. The motor in the truck now is the same as in my monte, and only difference is it's the truck long tail th350 and it's 2.73 rear end which sucks. Mine had 3.42's I think the highway gears kills the shift power and all around power, which that's going to get changed. But this weird feeling it gets would it be the trans. going down or what? __________________ Chris GIT R DONE!!!!!! Check out all our rides, http://www.cardomain.com/id/benwa454

07-05-2009, 09:40 AM	#2
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,310	Re: signs of trans or TC trouble th350 anyone? I know mine when they have gone usually lose forward gears then BAM and its done im good for killing a th350 in a year the way i drive __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

07-05-2009, 03:17 PM	#3
boatpuller Registered User Join Date: Sep 2005 Location: Sun City West, Az Posts: 3,822	Re: signs of trans or TC trouble th350 when mine went.it didn't go into reverse.and was slow to engage in forward gears.reverse was shot.you couldn't even back up a small incline like a driveway apron. __________________ " Never look up a dead dogs butt."

07-05-2009, 07:44 PM	#4
benoit454 Chris Join Date: Nov 2004 Location: Monaville, WV Posts: 3,737	Re: signs of trans or TC trouble th350 yea all gears work and go in right away it's just that weird feeling it has, never had it til now. __________________ Chris GIT R DONE!!!!!! Check out all our rides, http://www.cardomain.com/id/benwa454

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