Testing a Kickdown - The 1947 - Present Chevrolet & GMC Truck Message Board Network

skokie · 03-29-2005, 08:56 PM

Ok this is a little far fetched but then again so is my tranny issues

What I am trying to do is totally isolate my electrical system. Here is the plan.
Get a car battery and put it in the pass floorboard. Run a wire from the + termal to the switch, run a wire from the switch to the kickdown switch on the tranny. Go down the street and hit the button and release to see if it lets go or not. Now what about the ground? Where do I ground it? Do I need to? I know that this sounds a little crazy

but at this point I am willing to give it a shot.

Thanks

jhow66 · 03-29-2005, 11:14 PM

Just run a ground from - post to any metal surface.

68w/sbc406 · 03-29-2005, 11:21 PM

might not want to do that if you have another battery source hooked up too. just run a wire from the gound to the ground. doesnt even have to be a car battery. do you have any 12 volt drills around?

ac102nv · 03-30-2005, 12:16 AM

Quote:

Originally Posted by skokie

Ok this is a little far fetched but then again so is my tranny issues

What I am trying to do is totally isolate my electrical system. Here is the plan.
Get a car battery and put it in the pass floorboard. Run a wire from the + termal to the switch, run a wire from the switch to the kickdown switch on the tranny. Go down the street and hit the button and release to see if it lets go or not. Now what about the ground? Where do I ground it? Do I need to? I know that this sounds a little crazy

but at this point I am willing to give it a shot.

Thanks

skokie,

If this is in regards to your TH400 with upshift/kickdown issue....you said the problem followed the trans into another vehicle. Sounds like that would isolate ANY issue with your truck. Trucks not the problem...trans builder or kit/parts used for rebuild is.

Just a thought, you may want to pickup a good book on the 400's so you can do more of your own research. Then you can question the trans builder in his own language. I have one: "How to work with and modify the Turbo Hydra-Matic 400 Transmission" by Motorbooks International writer Ron Sessions. It's done me very well.

Good luck!!!

skokie · 03-30-2005, 03:10 AM

Quote:

Originally Posted by ac102nv

skokie,

If this is in regards to your TH400 with upshift/kickdown issue....you said the problem followed the trans into another vehicle. Sounds like that would isolate ANY issue with your truck. Trucks not the problem...trans builder or kit/parts used for rebuild is.

Just a thought, you may want to pickup a good book on the 400's so you can do more of your own research. Then you can question the trans builder in his own language. I have one: "How to work with and modify the Turbo Hydra-Matic 400 Transmission" by Motorbooks International writer Ron Sessions. It's done me very well.

Good luck!!!

It is in regards to the turbo 400. I did get a book on the 400s as well. I have a lot of pages with stickys on them. Today I gave up on that tranny shop. I am taking it to another place that a friend of mine recommended after I do a few things to it first.
Thanks for the good luck. I need some.

skokie · 03-30-2005, 03:58 PM

Quote:

Originally Posted by 68w/sbc406

might not want to do that if you have another battery source hooked up too. just run a wire from the gound to the ground. doesnt even have to be a car battery. do you have any 12 volt drills around?

NO 12 volt drills but a 14.4. Would that do it?

Putter · 03-30-2005, 04:04 PM

Sure....just drill a few holes in some wood to drain it a little, then check it with a volt-meter (multi-meter) to make sure you are in the 11-13 volt range.

skokie · 03-30-2005, 07:17 PM

Thanks Putter I will do that tonight. Lot lighter than t car battery

68w/sbc406 · 03-30-2005, 09:14 PM

well if you check your alternator, it puts out 14.4 volts, so that would be fine

skokie · 03-31-2005, 02:44 AM

Test results are in.
Same thing happenning. So now I am postive its not electrical. Sorry guys but I had to know for myself.

Thanks for the help

03-29-2005, 08:56 PM	#1
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,335	Testing a Kickdown Ok this is a little far fetched but then again so is my tranny issues What I am trying to do is totally isolate my electrical system. Here is the plan. Get a car battery and put it in the pass floorboard. Run a wire from the + termal to the switch, run a wire from the switch to the kickdown switch on the tranny. Go down the street and hit the button and release to see if it lets go or not. Now what about the ground? Where do I ground it? Do I need to? I know that this sounds a little crazy but at this point I am willing to give it a shot. Thanks __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

03-29-2005, 11:14 PM	#2
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Just run a ground from - post to any metal surface. __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

03-29-2005, 11:21 PM	#3
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	might not want to do that if you have another battery source hooked up too. just run a wire from the gound to the ground. doesnt even have to be a car battery. do you have any 12 volt drills around? __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

03-30-2005, 04:04 PM	#7
Putter More Cowbell.... Join Date: Mar 2004 Location: Puckett, MS Posts: 3,569	Sure....just drill a few holes in some wood to drain it a little, then check it with a volt-meter (multi-meter) to make sure you are in the 11-13 volt range. __________________ *There once was a member from Puckett.....Who ( fill in the blank blank blank* ) bucket**

03-30-2005, 07:17 PM	#8
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,335	Thanks Putter I will do that tonight. Lot lighter than t car battery __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234

03-30-2005, 09:14 PM	#9
68w/sbc406 Got Light Emitting Diode? Join Date: Apr 2004 Location: Newberg, OR Posts: 2,485	well if you check your alternator, it puts out 14.4 volts, so that would be fine __________________ 1968 1/2 ton 2wd lwb 6 lug disc and bags up front. Next c notch and rear bags '02 Chevy Silverado LT ext cab short bed 2WD 5/7 drop on 22's(the family car) 1993 Cherokee work ride/weekend wheeler

03-31-2005, 02:44 AM	#10
skokie Registered User Join Date: Oct 2003 Location: San Jose Ca. Posts: 3,335	Test results are in. Same thing happenning. So now I am postive its not electrical. Sorry guys but I had to know for myself. Thanks for the help __________________ RIP to my son Dylan. 5/17/2002 - 8/18/2018 If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started. https://slothforpedcancer.org 68 build thread http://67-72chevytrucks.com/vboard/s...d.php?t=223234



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