TH350 trans. changed fuild, filter, pan gasket. now shudders. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

72-c20 · 08-09-2010, 05:53 PM

changed the trans filter and pan gasket. new fluid.

right after starting, it will shudder if I shift into D or R and move the truck slowly...

if I let it warm up, it seems fine, thought it does seem to have harder transitions between gears.

I checked the fluid, and it's not low.

thoughts?

grs · 08-09-2010, 06:15 PM

Did you check the fluid when it was hot? And do you have the correct dip stick?

72-c20 · 08-09-2010, 06:43 PM

Quote:

Originally Posted by grs

Did you check the fluid when it was hot? And do you have the correct dip stick?

yes, checked when hot. it's the original dipstick.

camjck89 · 08-09-2010, 06:47 PM

mine did that when i first got it the kick down was loose and i rebuilt the carburetor. haven't had a problem since, except i have to stand on the manual brakes to keep it from taking off.

72-c20 · 08-09-2010, 06:52 PM

Quote:

Originally Posted by camjck89

mine did that when i first got it the kick down was loose and i rebuilt the carburetor. haven't had a problem since, except i have to stand on the manual brakes to keep it from taking off.

hmmm. my kickdown cable isn't attached. it's been disconnected for as long as I've had the truck.... carb was rebuilt less than 1000 miles ago.

vac lines look okay. has new brake booster and MC too...

68K30 · 08-09-2010, 09:44 PM

Possible loose filter screws or missing or out of position filter gasket, I have overhauled several of these that customers diagnosed themselves and this was the problem.

Indyuke · 08-10-2010, 02:01 AM

This might make me sound stupid, but did you check the level with the truck running?

72-c20 · 08-10-2010, 10:07 AM

Quote:

Originally Posted by Indyuke

This might make me sound stupid, but did you check the level with the truck running?

Yep. I'm gonna try and check all the vac lines again too. Just seems weird that my braking seems involved..

Sinister · 08-10-2010, 11:07 AM

Put it into all the gears with the motor running. P R N D 2 1. Let it sit for a moment in each gear with your foot on the brake, then check the fluid level again.

08-09-2010, 05:53 PM	#1
72-c20 Packrat Join Date: May 2008 Location: Central Iowa Posts: 459	TH350 trans. changed fuild, filter, pan gasket. now shudders. changed the trans filter and pan gasket. new fluid. right after starting, it will shudder if I shift into D or R and move the truck slowly... if I let it warm up, it seems fine, thought it does seem to have harder transitions between gears. I checked the fluid, and it's not low. thoughts? __________________ gone: --'07 Tahoe LTZ 4WD --'68 Firebird 400 Convertible gone: --'72 Chevy K20

08-09-2010, 06:15 PM	#2
grs Registered User Join Date: Jan 2010 Location: Roanoke, Tx. Posts: 1,561	Re: TH350 trans. changed fuild, filter, pan gasket. now shudders. Did you check the fluid when it was hot? And do you have the correct dip stick?

08-09-2010, 06:47 PM	#4
camjck89 Registered User Join Date: Mar 2010 Location: Wingate, NC Posts: 117	Re: TH350 trans. changed fuild, filter, pan gasket. now shudders. mine did that when i first got it the kick down was loose and i rebuilt the carburetor. haven't had a problem since, except i have to stand on the manual brakes to keep it from taking off. __________________ 72 lwb farm truck 86k o.g. miles. 350/th350 89 toyota 3" drop 22r 4spd 2wd

08-09-2010, 09:44 PM	#6
68K30 Registered User Join Date: May 2007 Location: Pennsylvania Posts: 99	Re: TH350 trans. changed fuild, filter, pan gasket. now shudders. Possible loose filter screws or missing or out of position filter gasket, I have overhauled several of these that customers diagnosed themselves and this was the problem.

08-10-2010, 02:01 AM	#7
Indyuke Registered User Join Date: Feb 2008 Location: Lake Stevens, WA Posts: 623	Re: TH350 trans. changed fuild, filter, pan gasket. now shudders. This might make me sound stupid, but did you check the level with the truck running?

08-10-2010, 11:07 AM	#9
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: TH350 trans. changed fuild, filter, pan gasket. now shudders. Put it into all the gears with the motor running. P R N D 2 1. Let it sit for a moment in each gear with your foot on the brake, then check the fluid level again. __________________ Beat it to fit, Paint it to match...



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