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#1 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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tv cable, carb spacer
So, my truck was kicking down a gear going up hill kinda early in my opinion. Put in a 2" carb spacer, now it kicks down with hardly any pressure on the accelerator. So, I looked up the procedure for adjusting the tv cable, but couldn't find what tab you pull out before you open the throttle. Nothing I found online made sense with what I had going on. This morning, I was going up a hill, it kept kicking down a gear, and shifting back up. Figured if I floored it, at least it would stay in the lower gear and make it up the hill. Just kept dropping down, and shifting back up. Any tips on adjusting this?
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#2 |
Registered User
Join Date: Dec 2009
Location: Rochester, MN
Posts: 43
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Re: tv cable, carb spacer
Is it a TH350 or 700-R4? If it is a 350, there is a clip that pops up right behind the bracket if you press from underneath. If it is a 700-R4, there is a D-shaped pad on the bottom that you press and hold while moving the throttle to WOT.
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Togart '66 GMC 1500 '77 C-10 Scottsdale Big 10 |
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#3 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
Thanks. Not sure which it is. Truck came with 4 speed according to build tag. I'll check if it has the clip or the pad, thanks.
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#4 |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: tv cable, carb spacer
It's a "button" of sorts on the 700r4 that looks like a capital D. Push it in and hold it. Push the nose of the TV cable all the way towards the firewall. Let go of the D button. Get inside your truck, and put the throttle to the floor. You should hear some clicks, and that will set it.
All of that with the engine off, of course. Have to say it... because you know some people will try it the other way around. Looks like we all jumped on that one pretty quick... ![]()
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 Last edited by lindstromjd; 06-02-2011 at 12:43 AM. |
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#5 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
I can't find a clip or a D shaped button to push. Since the tranny isn't original, it had a manual, what other options could the cable be?
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#6 |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: tv cable, carb spacer
Really need to know if it's a TH350 or a 700r4. Or at least some pix of what you're working with?
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#7 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
How do you tell which tranny it is?
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#8 |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: tv cable, carb spacer
Easy way is look at the pan. Does it look like a big square? Or does it look like a square with a corner cut off it at an angle?
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#9 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
Corner cut off. I'm zt work or I would post pic of carb linkage
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#10 |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: tv cable, carb spacer
That's a TH350. You have a kick-down cable. It's probably adjusted to kickdown way too early. You can take it completely off and see what happens. The TH350 won't destroy itself with the kickdown off like the 700r4 will with the tv cable off.
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#11 |
Registered User
Join Date: Mar 2010
Location: Beaufort SC
Posts: 583
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Re: tv cable, carb spacer
I put a 1" spacer on mine and used the factory kickdown bracket. On mine i had to take it off the bracket and the square cut end of the cable, where it goes into the bracket was threaded. So i would pull it out and adjust the length by threading the cabel. I set it up so with the carb at full throttle you could pull the TV slider about 1/8 to 1/4 farther. I have never had any problems with mine and i think the kick down is just right.
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#12 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
I disconnected it. It's weird, my gas pedal is so easy to push now. I might try to fix it this weekend.
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#13 | |
Account Suspended
Join Date: Jan 2011
Location: Allen, TX
Posts: 188
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Re: tv cable, carb spacer
Quote:
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#14 | |
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: tv cable, carb spacer
Quote:
Anyway, if you do get a chance to snap a picture of what your cable looks like, someone should be able to figure out how to adjust it.
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 Last edited by lindstromjd; 06-03-2011 at 10:30 AM. |
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#15 | |
Account Suspended
Join Date: Jan 2011
Location: Allen, TX
Posts: 188
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Re: tv cable, carb spacer
Quote:
do ur hw before u give people the ol "eahhhhh u dont need this! extra parts!!" ![]() |
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#16 |
Registered User
Join Date: May 2010
Location: Shoals, AL
Posts: 299
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Re: tv cable, carb spacer
I am interested in this also. I just bought a spacer to put under my Holley. It is only a little over 1/2". Will I have to adjust the kick?
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#17 |
Registered User
Join Date: Dec 2009
Location: Rochester, MN
Posts: 43
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Re: tv cable, carb spacer
Thats how a 700-R4 functions. The TH350 uses a vacuum modulator instead and the cable is just for kickdown.
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Togart '66 GMC 1500 '77 C-10 Scottsdale Big 10 |
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#18 |
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Join Date: May 2011
Location: Thibodaux, LA
Posts: 114
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Re: tv cable, carb spacer
![]() Posted via Mobile Device
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Jay Bernard, Thibodaux, LA 1986 SWB Sierra Classic Stock roller 350/700R4 2008 Buick Enclave CXL 3.6 VVT, 6spd auto. PAINFULLY stock... (wife's ride) |
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#19 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
![]() here's the cable
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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#20 |
Registered User
Join Date: Dec 2009
Location: Rochester, MN
Posts: 43
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Re: tv cable, carb spacer
Yours looks slightly different than mine...I think you have a newer cable. I attached pics of how my aduster clip looks, anyway, in case something jumps out at you. The first is of it closed, the second of it open. Again, I just have to push from underneath and it pops up enough for me to grab it and lift it.
![]() ![]() Dunno how much they changed it...maybe someone else here has a newer cable like yours.
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Togart '66 GMC 1500 '77 C-10 Scottsdale Big 10 |
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#21 | ||
Gentleman Jim owner x2
![]() Join Date: Oct 2010
Location: West Des Moines, IA
Posts: 464
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Re: tv cable, carb spacer
Quote:
Quote:
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1975 GMC Gentleman Jim #1 -357 / 700r4 1975 GMC Gentleman Jim #2 -350 / TH350 |
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#22 |
Registered User
Join Date: Dec 2010
Location: sioux city, iowa
Posts: 619
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Re: tv cable, carb spacer
"TH350 won't destroy itself with the kickdown off like the 700r4 will with the tv cable off."
If it is a 700r4 and the cable isn't adjusted right you'll be buying a new transmission. |
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#23 |
Registered User
Join Date: Jan 2011
Location: Auburn, WA
Posts: 87
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Re: tv cable, carb spacer
I think a previous owner converted it to automatic, so the kickdown cable wouldn't have been there before. Who knows what it came off of...
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'85 k10 long bed, 6" lift. 35" tires. 350, Edelbrock intake/carb, headers, dual exhaust. Automatic. |
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