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-   1987 - 1996 F150 (https://www.f150forum.com/f10/)
-   -   What’s is this??? (https://www.f150forum.com/f10/what-s-413758/)

NaplesF150 04-15-2018 07:34 PM

What’s is this???
 
https://cimg8.ibsrv.net/gimg/www.f15...ef110603d.jpeg
https://cimg0.ibsrv.net/gimg/www.f15...5f38ebfbd.jpeg
I have a 88 lariat, and would like to know what this component is which is next to brake booster. It looks like a vacuum pump, but not sure. What is it, and what does it do???

BLDTruth 04-15-2018 07:40 PM

Cruise control servo?

NaplesF150 04-15-2018 09:09 PM

I guess it’s of no use now considering I have done a efi to carb conversion

Steve83 04-16-2018 10:16 AM

Yes, many carb vehicles have cruise control, and that servo was used from the late 70s until '92 (on F-series).

https://www.supermotors.net/getfile/...leshooting.jpg
(phone app link)

NaplesF150 04-16-2018 11:42 AM

I was looking at it yesterday. Just looks like it needs hooking back up to vacuum port, and keep the cable piggybacked on throttle cable. I did notice the original vacuum can at front had originally imploded, sucked itself in, so must of had an original problem

Steve83 04-16-2018 10:32 PM

There is no cruise problem that could cause the vacuum reservoir to collapse. It gets full manifold vacuum all the time. Either it rusted in a very even way so that it became too weak, or something mechanically crushed it (like something stowed under the hood, or a collision).

NaplesF150 04-17-2018 06:45 AM

Thanks guys, think I have it sorted now


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