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Offline Bitzer!

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Another one
« on: January 26, 2012, 04:34:36 pm »

Just another quick question........

Whilst hanging upside down off the front seat looking for the wire to the dizzy, I noticed wires plug into the throttle. Would this be for cruise control? Can't think of another reason they're there.

cheers

Andy
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1979 GMC CrewCab  C20 1t
454 750 Holley,TH350, 14bolt diff fully floating
Why aren't there 8 days in a week!
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Offline Captkaos

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Re: Another one
« Reply #1 on: January 26, 2012, 04:44:40 pm »
Where?
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Offline Bitzer!

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Re: Another one
« Reply #2 on: January 26, 2012, 04:47:05 pm »

It looked like its at the back of the throttle pedal bracket. I was upside down, and it wasn't the brake  ;)

Didn't find dizzy wire either!
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1979 GMC CrewCab  C20 1t
454 750 Holley,TH350, 14bolt diff fully floating
Why aren't there 8 days in a week!
A K5 rolling shell *new addition*

Offline zieg85

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Re: Another one
« Reply #3 on: January 26, 2012, 04:53:05 pm »
Sounds like the TH400 kickdown switch to me.
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Carl 
1985 C20 Scottsdale 7.4L 4 speed 3.21
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Offline Bitzer!

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Re: Another one
« Reply #4 on: January 26, 2012, 05:02:57 pm »

That could be a good shout Zeig. Never owned an auto b4 and not really thought about how the kickdown works!
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1979 GMC CrewCab  C20 1t
454 750 Holley,TH350, 14bolt diff fully floating
Why aren't there 8 days in a week!
A K5 rolling shell *new addition*

Offline bake74

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Re: Another one
« Reply #5 on: January 27, 2012, 06:30:01 am »
Quote from: Bitzer! on January 26, 2012, 04:47:05 pm

It looked like its at the back of the throttle pedal bracket. I was upside down, and it wasn't the brake  ;)

Didn't find dizzy wire either!

     I must just be a redneck, I have to ask, what is a "dizzy" ?
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Offline Bitzer!

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Re: Another one
« Reply #6 on: January 27, 2012, 06:55:21 am »

It must be me that's the redneck! Dizzy is distributor.

I'm sure I poked the wire through the firewall when I unplugged it all but I can't find it!

Thats unless it doesn't go through there to start with and the power is picked up from the loom in the engine bay!!!

It's an age thing ha ha
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1979 GMC CrewCab  C20 1t
454 750 Holley,TH350, 14bolt diff fully floating
Why aren't there 8 days in a week!
A K5 rolling shell *new addition*

Offline DnStClr

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Re: Another one
« Reply #7 on: January 27, 2012, 05:09:18 pm »
The kickdown switch at the accelerator pedal should have 2 wires- one to supply b+ voltage and one goes to the drivers side of the trans to the kickdown solenoid in the trans.
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Don
87 Chevy Silverado

Offline Bitzer!

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Re: Another one
« Reply #8 on: January 27, 2012, 05:30:49 pm »
Cheers DnStClr - that makes perfect sense. Cheers fella
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1979 GMC CrewCab  C20 1t
454 750 Holley,TH350, 14bolt diff fully floating
Why aren't there 8 days in a week!
A K5 rolling shell *new addition*

Offline 1979C20

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Re: Another one
« Reply #9 on: January 27, 2012, 06:53:06 pm »
On my truck the distributor wire is redish pink and comes out of a loom behind the driver side head.
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1979 SCLB C20 Q-jet 350 SM465 14b F.F. 4.10 G80
1989 GMC Suburban V2500 TBI350 TH400 4in lift 35's 14b SF
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