Cruise control part ID and ideas on a quick fix

[76k5blazerr]

Today while I was charging up my AC after the new compressor went on, I noticed that the small rod/linkage that goes from the throttle to the (I think) vacuum pot, Is that what it's called? Its the metal round thing on the back of the intake manifold that has the rubber front and a bracket on it for said linkage to hook too. Anyway, the eyelit that the rod hooks into is broken. Its like a U instead of a O, so it won't hold the linkage in place. I believe this is why my cruise is not working at the moment. So what vehicles have that same vacuum pot and bracket that holds the rod? Obviously square bodies but they are a rarity at my local part yard. Does an 88-95 GM pickup have this? Anything else? Or better yet, can you buy just the small bracket that holds the rod? Any quick fix ideas for this just to verify that it is in fact the problem before I toss $$ at it?

 

[6872xtc]

I'm no help as I haven't attempted to fix mine, which has the same problem.

But I can tell you that my '95 K2500 doesn't have the vacuum pot. It has the electric motor (?) remote mounted on the firewall.

 

[diesel4me]

I think full sized GM cars used the same vacuum can for cruise control in the same era..
I might still have one I saved off a '78 Suburban I parted out ,bought it for the 400 small block years ago,and had no use for any of the cruise control parts--don't know if it was any good or not though--might even have the speedo cables somewhere buried in the rubble I call a garage..

 

[76k5blazerr]

I think full sized GM cars used the same vacuum can for cruise control in the same era..
I might still have one I saved off a '78 Suburban I parted out ,bought it for the 400 small block years ago,and had no use for any of the cruise control parts--don't know if it was any good or not though--might even have the speedo cables somewhere buried in the rubble I call a garage..

All I need is the small metal bracket that rivets to the front of it.

 

[dyeager535]

All I need is the small metal bracket that rivets to the front of it.

Concur with the "any GM of same design". Does it look like something repairable? I believe they call it a vacuum servo, and I'm guessing that is rubber because it is air-tight. I had always assumed you had to replace the whole thing, but admittedly never looked at it that closely.

FWIW apparently at least the early electronic cruise control servo's will work with our older setups (early 90's as I recall), I know S10's were a decent source, but have a very long cable IIRC. I intend to convert to it at some point, I better get the servo portion before those vintage all disappear as well.

Not sure the electronic ones are any better, it would be interesting to compare. I can imagine they might be a bit smoother in operation, but I've not experienced much problem with the vacuum style when setup properly.

 

[76k5blazerr]

Concur with the "any GM of same design". Does it look like something repairable? I believe they call it a vacuum servo, and I'm guessing that is rubber because it is air-tight. I had always assumed you had to replace the whole thing, but admittedly never looked at it that closely.

FWIW apparently at least the early electronic cruise control servo's will work with our older setups (early 90's as I recall), I know S10's were a decent source, but have a very long cable IIRC. I intend to convert to it at some point, I better get the servo portion before those vintage all disappear as well.

Not sure the electronic ones are any better, it would be interesting to compare. I can imagine they might be a bit smoother in operation, but I've not experienced much problem with the vacuum style when setup properly.

I'll grab a pic of it shortly, do you know if lmc or anywhere else like parts stores sell this vacuum servo?

 

[frankin5]

Egay has a whole bunch of them.

 

[Blue85]

I wonder if you could replace the bracket. If it just rivets on, fab a new one, drill the rivet and when installing the new rivet put silicone or epoxy in there. Not much to lose trying.

 

[76k5blazerr]

I wonder if you could replace the bracket. If it just rivets on, fab a new one, drill the rivet and when installing the new rivet put silicone or epoxy in there. Not much to lose trying.

This is what I think I'm going to try

 

[6872xtc]

I would wonder what effect that the rest if the rivet will have laying in the vacuum diaphragm.