TH 350 help

Alan Roehrich · 05-29-2016, 09:34 PM

Stator shaft (big splined tube) is possibly loose. Also you could have another pump problem, or valve body problem. Do you run a transmission cooler?

MYLINRACING · 05-29-2016, 09:37 PM

No Sir, I don't run a cooler

Alan Roehrich · 05-29-2016, 10:18 PM

I'm not a sir. Just a guy.

Any other changes before this started?

Checked the basics?

Fluid level?

Ignition sytem?

Fuel system?

Timing?

MYLINRACING · 05-30-2016, 12:55 PM

We have changed just about everything MSD box, coil, fuel pump, fuel reg, Carb, Converter. Trans fluid level looks good and the timing is were it should be. Checked the stator shaft but it is tight. Going to call Turbo Action in the morning and see about a new valve body.

Alan Roehrich · 05-30-2016, 01:06 PM

Do not just replace parts arbitrarily. It has not worked so far, and is not likely to work, at least until you have spent way too much money.

The next thing to do is to perform the appropriate pressure tests on the transmission.

It is the pump that charges the converter with fluid. The valvebody controls line pressure, and as a function of line pressure, there is charge pressure to fill the torque converter with fluid. It is possible that there is one or more problem inside the pump.

HIGHOCTAIN2000 · 05-30-2016, 03:26 PM

if your engine is down on power you will lose stall speed

MYLINRACING · 06-01-2016, 08:31 AM

Engine checks out fine no issues there.

05-29-2016, 09:34 PM	#1
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,126 Likes: 1,583 Liked 1,892 Times in 423 Posts	Re: TH 350 help Stator shaft (big splined tube) is possibly loose. Also you could have another pump problem, or valve body problem. Do you run a transmission cooler? __________________ Alan Roehrich 212A G/S

05-29-2016, 09:37 PM	#2
MYLINRACING Junior Member Join Date: Dec 2004 Location: CHARLESTON Posts: 63 Likes: 11 Liked 1 Time in 1 Post	Re: TH 350 help No Sir, I don't run a cooler __________________ Andy Mylin 1987 Pontiac trans am 2441 I/SA

05-29-2016, 10:18 PM	#3
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,126 Likes: 1,583 Liked 1,892 Times in 423 Posts	Re: TH 350 help I'm not a sir. Just a guy. Any other changes before this started? Checked the basics? Fluid level? Ignition sytem? Fuel system? Timing? __________________ Alan Roehrich 212A G/S

05-30-2016, 12:55 PM	#4
MYLINRACING Junior Member Join Date: Dec 2004 Location: CHARLESTON Posts: 63 Likes: 11 Liked 1 Time in 1 Post	Re: TH 350 help We have changed just about everything MSD box, coil, fuel pump, fuel reg, Carb, Converter. Trans fluid level looks good and the timing is were it should be. Checked the stator shaft but it is tight. Going to call Turbo Action in the morning and see about a new valve body. __________________ Andy Mylin 1987 Pontiac trans am 2441 I/SA

05-30-2016, 01:06 PM	#5
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,126 Likes: 1,583 Liked 1,892 Times in 423 Posts	Re: TH 350 help Do not just replace parts arbitrarily. It has not worked so far, and is not likely to work, at least until you have spent way too much money. The next thing to do is to perform the appropriate pressure tests on the transmission. It is the pump that charges the converter with fluid. The valvebody controls line pressure, and as a function of line pressure, there is charge pressure to fill the torque converter with fluid. It is possible that there is one or more problem inside the pump. __________________ Alan Roehrich 212A G/S

05-30-2016, 03:26 PM	#6
HIGHOCTAIN2000 Junior Member Join Date: Nov 2007 Posts: 27 Likes: 0 Liked 0 Times in 0 Posts	Re: TH 350 help if your engine is down on power you will lose stall speed

06-01-2016, 08:31 AM	#7
MYLINRACING Junior Member Join Date: Dec 2004 Location: CHARLESTON Posts: 63 Likes: 11 Liked 1 Time in 1 Post	Re: TH 350 help Engine checks out fine no issues there. __________________ Andy Mylin 1987 Pontiac trans am 2441 I/SA