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#1752849 - 04/25/09 09:36 PM Symptoms of a bad Torque Converter...?
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
As the title states, what are symptoms of a bad TC? I read somewhere that if the car jumps forward when put in gear that indicates something wrong with the TC, and unfortunatly my car does do this. Any more input is greatly appreciated.
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#1752885 - 04/25/09 10:59 PM Re: Symptoms of a bad Torque Converter...? [Re: BigNSlow]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
Nope no clunk. And the car does in fact stall when I put it into gear as well.... time for a new TC maybe?
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#1752970 - 04/26/09 02:57 AM Re: Symptoms of a bad Torque Converter...? [Re: musclemarquis]
dRock96Marquis Offline


Posting Addict

Registered: 02/22/05
Posts: 24394
Loc: Maryland
Some slight lurching / body movement is normal when you shift into gear (with foot on brake)

Can you describe how the car 'jumps' in more detail?
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#1753050 - 04/26/09 10:16 AM Re: Symptoms of a bad Torque Converter...? [Re: dRock96Marquis]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
The rear end will actually get up a little when I have the brake applied. It doesn't really feel slight to me.
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#1753774 - 04/27/09 09:55 AM Re: Symptoms of a bad Torque Converter...? [Re: musclemarquis]
Jai Offline
Member

Registered: 04/20/09
Posts: 198
Loc: Texas
The most common issues I've seen with torque converters is the engine will die when you put it into drive, b/c its locking up, and I have also seen them through codes for not locking up when it should be. If the car is jerking forward, depending on the severity, it could be an internal issue with the trans, like 2 gears trying to engage at the same time, have had that happen to me as well. When you put it into drive, do you have to raise the rpm then it engages hard? or does it just slam into gear as soon as you put it into drive?

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#1754173 - 04/27/09 06:17 PM Re: Symptoms of a bad Torque Converter...? [Re: Jai]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
Actually I've noticed a little delay as it pops into drive. Don't remember if I had this issue before tho.
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#1754185 - 04/27/09 06:34 PM Re: Symptoms of a bad Torque Converter...? [Re: musclemarquis]
04RauderDTR Offline

Poobah

Registered: 09/23/07
Posts: 5423
Loc: PA
time for a 3000 stall converter!
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2004 Mercury Mcgruber Eaton M112, 3.4 Billetflow upper, Accufab SBTB + Plenum, Tremec T-56 Magnum, 4.10's, Stainless Works LT's, 2.5" Exhaust W/ Borla Stingers, FX-R projectors, Addco F/R swaybars
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#1754545 - 04/28/09 07:27 AM Re: Symptoms of a bad Torque Converter...? [Re: 04RauderDTR]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
WOOT!! I kind of figured my converter is on it's way out. I'm going to wait just a couple more paychecks and then I'll order it from lonnie.
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#1757455 - 05/01/09 07:12 PM Update.... [Re: musclemarquis]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
Alright so I did a stall speed test today, and I noticed its at 1800. I read around and saw that the 12" should be around 2000-2300. Whats this telling me?
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#1757814 - 05/02/09 09:26 AM Re: Update.... [Re: musclemarquis]
a_d_a_m Online   drunk

3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 27794
Loc: Cleveland, OH
I would throw a set of U-joints in the car first.

It's cheap, relatively easy (shops don't even charge that much, just bring the driveshaft to them), and could save you the hassle of replacing a TC that doesn't actually need to be replaced.

I mean, from everything you are describing I am still willing to bet it is U-joints.

What does your trans fluid look and smell like? When was the last flush/fill? Assumedly if there is an internal transmission/TC problem your fluid might tell you the story...

1800rpm doesn't sound that bad to me, of course I don't work in a trans shop so maybe that really IS lousy.
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formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19 and the best car ever), '03 SAP P71

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#1757863 - 05/02/09 10:49 AM Re: Update.... [Re: a_d_a_m]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
Fluid is perfect and I replaced it last year. Opened the pan up yesterday, and there's no debris in there, and nothing on the magnet inside the pan.

Now, sorry for the noob question, but what do the u-joints have to do with this?
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Click the link for more info on my car.

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#1757872 - 05/02/09 10:57 AM Re: Update.... [Re: musclemarquis]
a_d_a_m Online   drunk

3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 27794
Loc: Cleveland, OH
They're at the ends of your driveshaft. They wear out and get sloppy.

http://www.mgaguru.com/mgtech/propshaft/ps102.htm

Propshaft = driveshaft.


Edited by a_d_a_m (05/02/09 10:59 AM)
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'91 LTD Country Squire (POTM Mar. '19) | '03 Marauder (POTM Nov. '10, Jul. '20) | 2010 P7B (POTM Feb. '21)
formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19 and the best car ever), '03 SAP P71

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#1757991 - 05/02/09 02:48 PM Re: Update.... [Re: a_d_a_m]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
Lol, I know what they are, I meant how can they contribute to the problem?

On a side note, the problem is gone. I threw in a new battery and it hasn't stalled once under any circumstances. Drove around for hours today and it rode like it came off the factory floor. So I dont know whats up. Hopefully it was just the battery. I dropped the idle back down to 650, from the 800 I had to keep it driveable.
_________________________
Mercury Special Edition wink

http://www.supermotors.net/vehicles/registry/19273
Click the link for more info on my car.

Horsepower is an addiction. smile

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#1758535 - 05/03/09 01:45 PM Re: Update.... [Re: musclemarquis]
a_d_a_m Online   drunk

3 Orange Whips
Metroplectic

Registered: 10/25/05
Posts: 27794
Loc: Cleveland, OH
Well, a bad battery would certainly make the car act weird. Mine did that, but it also started throwing weird lights and stuff.
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'91 LTD Country Squire (POTM Mar. '19) | '03 Marauder (POTM Nov. '10, Jul. '20) | 2010 P7B (POTM Feb. '21)
formerly: '02 MGM, '04 MGM, '04 MGM v2.0, '04 MM, '07 P71 (POTM Feb. '18), '04 CVLX (POTM Jun. '19 and the best car ever), '03 SAP P71

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#1758940 - 05/03/09 10:21 PM Re: Update.... [Re: a_d_a_m]
musclemarquis Offline
Over the Hill

Registered: 12/30/07
Posts: 4098
Loc: chicago burbs
 Originally Posted By: a_d_a_m
Well, a bad battery would certainly make the car act weird. Mine did that, but it also started throwing weird lights and stuff.


Yea, a while back my lights, pretty much all electrical stuff went out, turned out to be the alternator.

I'll see if the battery was the solution to the problem. Been driving a lot this weekend and she hasn't stalled once.
_________________________
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http://www.supermotors.net/vehicles/registry/19273
Click the link for more info on my car.

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