TH400 Side plug Question. What is it for? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

petey-pablo · 01-03-2009, 11:32 PM

Ok guys I have this electrical conection on my TH400 I dont remember if anything was hooked up to it or not when I pulled the transmission & motor out. If it was I have no idea where the wire that unpluged from here went or goes, Can any one help me What goes plugged in here Is it a plug for a Transmission Oil Temperature Gauge? If so I'd like to put a Temperature Gauge in my Gauge Cluster. Anyone know the size of a gauge that would fit next to the Stock Oil Pressure Gauge the small hole Thanks Pablo.

powerbench · 01-03-2009, 11:47 PM

kick down switch

100%Chevy · 01-03-2009, 11:49 PM

I think it's for the kick-down switch.
I'd have to look at one of mine to be sure!
Mike.

STOCKISH · 01-03-2009, 11:58 PM

Almost positive it's for an electronic kick down.

phipp13 · 01-04-2009, 12:02 AM

it's a neutral safety switch. the kickdown is on the otherside of the trans.it's either a vacume hose to the intake or a detent cable hooked to the carb and it's on the right side of the trans.

powerbench · 01-04-2009, 12:08 AM

thought neutral safety was on the column

Longhorn Man · 01-04-2009, 12:26 AM

the safety switch is on the column.
If that plug has a single spade on it, then it is the electric kickdown. If it is a double, then it is the kickdown, and the transmission controlled spark (TCS) which was an early smog control device that kept the timing from being advanced untill the engine was up to temp, and in final drive ratio.

petey-pablo · 01-04-2009, 05:02 PM

Quote:

Originally Posted by Longhorn Man

the safety switch is on the column.
If that plug has a single spade on it, then it is the electric kickdown. If it is a double, then it is the kickdown, and the transmission controlled spark (TCS) which was an early smog control device that kept the timing from being advanced untill the engine was up to temp, and in final drive ratio.

Yes it is a singel Spade, So Do I not need it if I have no electric kickdown? Heres a picture of the passenger Side with Vacum line in it and a Close up of the Single spade I am asking about! Thanks guys...

Longhorn Man · 01-04-2009, 05:07 PM

Coming froma guy with no kickdown... it's a nice feature to have.
However, you can leave it unhooked with no major side effects. If you floor it and it should kick down, and is unable, the line pressure can get a little high, and it can shorten the life of the tranny, but we aren't talking like an overdrive that'll self destruct.
if you can run it, you should. If you don't, it isn't detrimental, but it will cause a slightly shorter tranny life.

petey-pablo · 01-04-2009, 05:27 PM

Thanks Longhorn Man It looks like I have to invest in a Automatic Transmission Kickdown Kit in the near future once I get it driveable... And here I thought it was a temp sensor

01-03-2009, 11:32 PM	#1
petey-pablo "THE GREEN GOBLIN" Join Date: Mar 2008 Location: Fremont Ca. Posts: 1,025	TH400 Side plug Question. What is it for? Ok guys I have this electrical conection on my TH400 I dont remember if anything was hooked up to it or not when I pulled the transmission & motor out. If it was I have no idea where the wire that unpluged from here went or goes, Can any one help me What goes plugged in here Is it a plug for a Transmission Oil Temperature Gauge? If so I'd like to put a Temperature Gauge in my Gauge Cluster. Anyone know the size of a gauge that would fit next to the Stock Oil Pressure Gauge the small hole Thanks Pablo. __________________ Petey-pablo "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi Sold Drive it like you stole it! Petey-pablo@sbcglobal.net

01-03-2009, 11:47 PM	#2
powerbench Registered User Join Date: Oct 2006 Location: Surrey B.C Posts: 432	Re: TH400 Side plug Question. What is it for? kick down switch

01-03-2009, 11:49 PM	#3
100%Chevy Registered User Join Date: Jun 2008 Location: Moss Point,Ms. Posts: 1,439	Re: TH400 Side plug Question. What is it for? I think it's for the kick-down switch. I'd have to look at one of mine to be sure! Mike.

01-03-2009, 11:58 PM	#4
STOCKISH Formerly- 1972SuperCheyenne Join Date: Oct 2008 Location: Wake Forest NC Posts: 5,782	Re: TH400 Side plug Question. What is it for? Almost positive it's for an electronic kick down. __________________ --Josh My Build Thread:http://67-72chevytrucks.com/vboard/s...d.php?t=799218 A good crossthread is better than Loctite any day. Life is not about what you have, but who you have to share it with.

01-04-2009, 12:02 AM	#5
phipp13 THE DAMN YANKEE Join Date: Sep 2006 Location: Southern MD Posts: 551	Re: TH400 Side plug Question. What is it for? it's a neutral safety switch. the kickdown is on the otherside of the trans.it's either a vacume hose to the intake or a detent cable hooked to the carb and it's on the right side of the trans.

01-04-2009, 12:08 AM	#6
powerbench Registered User Join Date: Oct 2006 Location: Surrey B.C Posts: 432	Re: TH400 Side plug Question. What is it for? thought neutral safety was on the column

01-04-2009, 12:26 AM	#7
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: TH400 Side plug Question. What is it for? the safety switch is on the column. If that plug has a single spade on it, then it is the electric kickdown. If it is a double, then it is the kickdown, and the transmission controlled spark (TCS) which was an early smog control device that kept the timing from being advanced untill the engine was up to temp, and in final drive ratio.

01-04-2009, 05:07 PM	#9
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,693	Re: TH400 Side plug Question. What is it for? Coming froma guy with no kickdown... it's a nice feature to have. However, you can leave it unhooked with no major side effects. If you floor it and it should kick down, and is unable, the line pressure can get a little high, and it can shorten the life of the tranny, but we aren't talking like an overdrive that'll self destruct. if you can run it, you should. If you don't, it isn't detrimental, but it will cause a slightly shorter tranny life.

01-04-2009, 05:27 PM	#10
petey-pablo "THE GREEN GOBLIN" Join Date: Mar 2008 Location: Fremont Ca. Posts: 1,025	Re: TH400 Side plug Question. What is it for? Thanks Longhorn Man It looks like I have to invest in a Automatic Transmission Kickdown Kit in the near future once I get it driveable... And here I thought it was a temp sensor __________________ Petey-pablo "THE GREEN GOBLIN" 1972 Cheyenne 10 Short Fleet Side Front 2.5inch Spindles with 2inch Springs Rear 4inch drop Springs. 454BBC TH400,Posi 1971 Cheyenne 10 Long Fleet Side 454BBC TH350,Posi Sold Drive it like you stole it! Petey-pablo@sbcglobal.net



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