Identify this part/its purpose - The 1947 - Present Chevrolet & GMC Truck Message Board Network

bigwheel15 · 03-25-2010, 10:36 PM

What exactly does this thing pictured do? Whats it for?

Restrorob · 03-25-2010, 10:39 PM

That's your cruise control transducer, Without it your cruise won't function.

bigwheel15 · 03-25-2010, 10:42 PM

Quote:

Originally Posted by Restrorob

That's your cruise control transducer, Without it your cruise won't function.

Thanks, and actually my cruise doesnt work anyways. So what would I have to do to remove it from there? Im guessing those two screw on cables are for the speedometer?

staggerd86c-10 · 03-25-2010, 11:48 PM

yeah its your speedo, on cable goes from your cluster to that piece, and that piece to your tranny. if you remove it you might have to get a new speedo cable

bigwheel15 · 03-25-2010, 11:49 PM

Quote:

Originally Posted by staggerd86c-10

yeah its your speedo, on cable goes from your cluster to that piece, and that piece to your tranny. if you remove it you might have to get a new speedo cable

Figured as such, guess ill add that to the list for when I head to the junkyard this weekend.

spinem · 03-26-2010, 12:37 AM

does the cruz controll mantain costant speed??

(if its set at 55.. will it go 55 up hill?)

FLEET72 · 03-26-2010, 02:23 AM

Quote:

Originally Posted by spinem

does the cruz controll mantain costant speed??

(if its set at 55.. will it go 55 up hill?)

A properly functioning one will.

love my 72 · 03-26-2010, 02:49 AM

Quote:

Originally Posted by FLEET72

A properly functioning one will.

So is it safe to assume the same if you go down hill?, provided you don't hit the brakes first and activate the vacuum disengagement.

S10Fan · 03-26-2010, 05:15 AM

Quote:

Originally Posted by love my 72

So is it safe to assume the same if you go down hill?, provided you don't hit the brakes first and activate the vacuum disengagement.

Yes,unless the hill/mountian has a ski ramp style drop. LOL

BTW...I added a cruise unit from Dakota Digital on my truck, LOVE it, especially on long trips.

TexasJeff · 03-26-2010, 07:30 AM

That is an after market, I believe, it might work if you hook up the missing vacumm line that is off in the picture. There should be some parts on the carb linkage too, it looks very similar to the one I took off my truck after I bought it. Mine even had a sensor on the drive shaft.

kevinr1970 · 03-26-2010, 03:20 PM

Quote:

Originally Posted by S10Fan

BTW...I added a cruise unit from Dakota Digital on my truck, LOVE it, especially on long trips.

Any idea of what that set-up cost?

C10Silverado79 · 03-26-2010, 03:46 PM

Quote:

BTW...I added a cruise unit from Dakota Digital on my truck, LOVE it, especially on long trips.

Does the Dakota unit use a similar in/out connection for the speedo cable or do you have to add some other modification?

menace121978 · 03-26-2010, 09:48 AM

Sorry Jeff, but that is factory. i highly doubt it will work even with the vaccum line hooked up. they are known to go bad and not hold a steady mph. there is a rubber diaphram inside that goes bad over time.

TexasJeff · 03-26-2010, 12:35 PM

Quote:

Originally Posted by menace121978

Sorry Jeff, but that is factory. i highly doubt it will work even with the vaccum line hooked up. they are known to go bad and not hold a steady mph. there is a rubber diaphram inside that goes bad over time.

Opps, sorry for the misdirection, mine looked similar but was for sure after market.

C10Silverado79 · 03-26-2010, 11:19 AM

Is it worth trying to fix the factory CC? Mine tries to work but cannot hold the mph. It slowly decels.

menace121978 · 03-26-2010, 11:32 AM

i wouldnt... i replaced mine twice. even when it was working it left alot to be desired. if i was to do it again i'd just use the dakota one like Bryan(S10Fan).

Cherub · 03-26-2010, 11:34 AM

yea i chunked mine in the rebuild

03-25-2010, 10:36 PM	#1
bigwheel15 Registered User Join Date: Feb 2010 Location: Fort Worth, TX Posts: 727	Identify this part/its purpose What exactly does this thing pictured do? Whats it for?

03-25-2010, 10:39 PM	#2
Restrorob The One And Only !!! Join Date: Jan 2007 Location: Hole in the woods Florida Posts: 4,567	Re: Identify this part/its purpose That's your cruise control transducer, Without it your cruise won't function. __________________ 93 Jeep XJ 88 Buick La Sabra Toys; 88 TA-GTA in the works.... 97 GMC Ext. Cab 502 Crate 5 Spd......Sucks Gas But Haulz Azz ! The primary function of an Engineer is to make it difficult for the Fabricator and impossible for the Mechanic. *"Why go out preserved when you can go out beat up, worn out, sliding in sideways screaming, Holy Sh!t What A Ride" !!!* Last edited by Restrorob; 03-25-2010 at 10:40 PM.

03-25-2010, 11:48 PM	#4
staggerd86c-10 Squarebody Aficionado Join Date: May 2008 Location: Miami, FL Posts: 713	Re: Identify this part/its purpose yeah its your speedo, on cable goes from your cluster to that piece, and that piece to your tranny. if you remove it you might have to get a new speedo cable

03-26-2010, 12:37 AM	#6
spinem haha, ford guys... Join Date: Feb 2007 Location: Visalia, CA Posts: 576	Re: Identify this part/its purpose does the cruz controll mantain costant speed?? (if its set at 55.. will it go 55 up hill?)

03-26-2010, 07:30 AM	#10
TexasJeff Don't Crush em Restore em Join Date: Aug 2004 Location: Pinehurst, Texas Posts: 764	Re: Identify this part/its purpose That is an after market, I believe, it might work if you hook up the missing vacumm line that is off in the picture. There should be some parts on the carb linkage too, it looks very similar to the one I took off my truck after I bought it. Mine even had a sensor on the drive shaft. __________________ TexasJeff 2009 Silver with Linen Interior Cadillac DTS 1990 Red with White Top and Interior Ford Mustang GT convertible 1998 Red with Gray Interior, C3500 Chevy Crew Cab Dually

03-26-2010, 09:48 AM	#13
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: Identify this part/its purpose Sorry Jeff, but that is factory. i highly doubt it will work even with the vaccum line hooked up. they are known to go bad and not hold a steady mph. there is a rubber diaphram inside that goes bad over time. __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

03-26-2010, 11:19 AM	#15
C10Silverado79 Registered User Join Date: Feb 2010 Location: York, PA Posts: 180	Re: Identify this part/its purpose Is it worth trying to fix the factory CC? Mine tries to work but cannot hold the mph. It slowly decels. __________________ 1979 C10 Silverado 1998 Camry 5spd 2005 Harley ElectraGlide

03-26-2010, 11:32 AM	#16
menace121978 Registered User Join Date: Jan 2009 Location: orangevale, ca Posts: 3,626	Re: Identify this part/its purpose i wouldnt... i replaced mine twice. even when it was working it left alot to be desired. if i was to do it again i'd just use the dakota one like Bryan(S10Fan). __________________ "Dennis the Menace" 1978 Silverado (2wd, 1/2 ton, short bed)complete nut & bolt frame off restomod LQ9/4L80E MY LS SWAP/FRAME OFF BUILD BOOK 2006 TBSS way too much to list

03-26-2010, 11:34 AM	#17
Cherub Registered User Join Date: Feb 2008 Location: Houston Posts: 970	Re: Identify this part/its purpose yea i chunked mine in the rebuild __________________ 2014 LTZ Z71 Silverado 82 C15 LQ4/4L80E Conversion 78 Suburban build (SOLD) 83 4x4 Suburban(SOLD) 82 C15 (my first truck)



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