Recent Topics
Toyota's Insistence on using ATF in power steering
by alcyon
15 minutes 35 seconds ago
200 Mobil Gas Stations coming to Canada
by Snagglefoot
Yesterday at 10:13 PM
Brake Pads 2003 Jetta 1.8
by maxdustington
Yesterday at 09:56 PM
Any low cal high mag high zinc 5w40's out there?
by Roland1
Yesterday at 09:17 PM
straight-weight 20 oil
by OilUzer
Yesterday at 08:38 PM
supertech 15W40 5.3 Chevy
by mobilaltima
Yesterday at 08:38 PM
Tokyo Roki 15208AA130 - 4708km
by VolkswagenFox21
Yesterday at 08:37 PM
Shell Helix Ultra 0W40, 3070Km, Fiat Barchetta
by Popsy
Yesterday at 07:39 PM
Marijuana on the left coast
by Snagglefoot
Yesterday at 07:24 PM
Ubuntu 18.04 LTS and derivatives are out!
by uc50ic4more
Yesterday at 07:21 PM
Cooper CS5'
by gabriel9766
Yesterday at 07:07 PM
Zero Turn Front Tires
by AirgunSavant
Yesterday at 06:50 PM
$1,000 in rewards/cash back from Chase Bank
by 04SE
Yesterday at 06:15 PM
My Life with a Nurse:
by MolaKule
Yesterday at 04:32 PM
No start string trimmer
by Whimsey
Yesterday at 04:08 PM
HOME REMEDIES Zinc Oxide Folk Remedy- funny
by CourierDriver
Yesterday at 01:39 PM
Additive Chemistry Components III
by MolaKule
Yesterday at 12:33 PM
Explosion at refinery in Superior, WI.
by john_pifer
Yesterday at 12:08 PM
F1 - 2018 Azerbaijan Grand Prix
by gofast182
Yesterday at 11:56 AM
Best LL-01 Oil Right Now?
by RIPGermanCastrol
Yesterday at 11:43 AM
Newest Members
Rafaelon, kylek162, Budd33, Jekyll, Superfede
64860 Registered Users
Who's Online
26 registered (edyvw, ctechbob, alcyon, E365, dishdude, Drew99GT, 1 invisible), 1014 Guests and 57 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64860 Members
68 Forums
282415 Topics
4715128 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4499666 - 08/27/17 06:15 PM GM 4T65E magnets
Drew99GT Online   happy


Registered: 10/11/02
Posts: 22089
Loc: Colorado Springs
I recently did a pan drop and filter change on my moms Impala and obviously cleaned the pan and magnet; at that time, I because aware of the TSB GM has about replacing the stock magnet with an improved one and adding another to the bottom of the filter. I had already buttoned the trans back up before I could get the new magnets.

I'd like to add a rare Earth magnet to the outside of the pan just to see if it helps keep metal off the solenoids, which is the entire point of the TSB.

For anyone experienced with these GM FWD transaxles, where would the safest spot be on the outside of the pan to put a magnet, or even 2??? I don't want to put it close to where the OEM one is and mess it up. I certainly don't want to get a magnet close to any electronics in the trans and fry them.

Thanks! Has anyone done this to a GM or any other type of car???


Edited by Drew99GT (08/27/17 06:16 PM)

Top
#4499737 - 08/27/17 07:36 PM Re: GM 4T65E magnets [Re: Drew99GT]
clinebarger Offline


Registered: 12/19/13
Posts: 1762
Loc: Fort Worth, Texas
There are no electronics/solenoids in the bottom/lower pan on a 4T65E, They are in the side pan.

Buy putting them on the outside of the pan, You will lose a lot of magnet surface area for the debris to cling to.

If your worried about this, Pull the pan & do it right! However......You cleaning the original magnet is satisfactory 'til the next service.

The issue is that the Pressure Control Solenoid attracts metal particles & messes with solenoid response to amperage input from the PCM, Whatever metal is stuck to the PCS already is not going to fall off just because the extra magnets.
Around 2002 GM switched from a Holley sourced PCS Solenoids to a Borg Warner sourced solenoid. The Holley part was far better shielded/insulated from attracting debris, But it was more expensive.
_________________________
2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2007 Chevy Cobalt SS LSJ/F35
2010 Toyota Corolla 2ZR-FE/Auto

Top
#4499766 - 08/27/17 08:10 PM Re: GM 4T65E magnets [Re: Drew99GT]
Linctex Offline


Registered: 12/31/16
Posts: 5731
Loc: Waco, TX
Install one of these:

_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4499810 - 08/27/17 08:56 PM Re: GM 4T65E magnets [Re: Linctex]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Originally Posted By: Linctex
Install one of these:



Why in heck did gm not put this ?
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

Top
#4499816 - 08/27/17 09:03 PM Re: GM 4T65E magnets [Re: merconvvv]
Drew99GT Online   happy


Registered: 10/11/02
Posts: 22089
Loc: Colorado Springs
Originally Posted By: merconvvv
Originally Posted By: Linctex
Install one of these:



Why in heck did gm not put this ?


Cause the cheap fittings they'd use would leak all over the place!

Top
#4499996 - 08/28/17 04:35 AM Re: GM 4T65E magnets [Re: Drew99GT]
Lubener Offline


Registered: 01/22/11
Posts: 2508
Loc: N.Ohio
As those inline filters load up, your flow in/out of the cooler is diminished. You have to change them regularly.The strongest magnets I have tried came from the magnetron of a microwave oven. You have to pry them off the pan with a screwdriver. As posted, you lose a lot thru the pan. I found out you are still far better off even with the stock magnet over anything you can put on the outside of the pan.I did install two of those improved magnets, the improved one is far superior to the square stock one in strength and surface area.


Edited by Lubener (08/28/17 04:44 AM)
_________________________
The "thinking" man's friend.

Top
#4500030 - 08/28/17 06:14 AM Re: GM 4T65E magnets [Re: Drew99GT]
demarpaint Offline


Registered: 07/03/05
Posts: 29408
Loc: NY
Originally Posted By: Drew99GT
Originally Posted By: merconvvv
Originally Posted By: Linctex
Install one of these:



Why in heck did gm not put this ?


Cause the cheap fittings they'd use would leak all over the place!


Exactly, they probably decided against having the possibility for another leak point in the system, and something else to service. Oh and the added cost.
_________________________
God Bless Our Troops


Top
#4500109 - 08/28/17 08:15 AM Re: GM 4T65E magnets [Re: Drew99GT]
Driz Offline


Registered: 09/23/07
Posts: 252
Loc: northern NY
I remember Avweb did a test on rare earth magnets on the outside of standard champion filters once. They found that the magnets really did grab up metallic debris and lock it to the inside of the pan behind the magnet. The testers were pretty impressed. Those were only tiny 3/4" neobendyum magnets so a bigass microwave magnet should work well outside the pan. Not as well no doubt as inside naturally but still very helpful..

Top
#4500225 - 08/28/17 10:13 AM Re: GM 4T65E magnets [Re: Drew99GT]
merconvvv Offline


Registered: 07/10/16
Posts: 682
Loc: il usa
Well u cud go to an auto store and ask them to see a similarly constructed pan and right at their counter stick the magnet on the outside and see if it will attract a new nail or something mettalic on the inside of pan with force. smile
_________________________
1988 Mazda RX7 na PP 10w30 Noack 4.7
1994 Chrysler Concorde 3.3
1999 Ford Expedition 4.6 QSUD 10W30 NOACK 5.0

Top
#4500232 - 08/28/17 10:21 AM Re: GM 4T65E magnets [Re: Drew99GT]
LeakySeals Offline


Registered: 02/18/11
Posts: 6521
Loc: Hudson, NH
_________________________
06 Escalade 6.0L AWD 160k. M1 5w30 Fram TG
03 Maxima 3.5L Unknown miles ST HM 10w30

Top