How To: Cruise Control Repair
Hi there!
I guess we all know, that our beloved cars are ageing. All parts are ageing. Metal, plastic and rubber. So "luxury" items, like the CC are going to start to fail sometime. My '89 V12 CC decided to work, but not be able to hold the speed for long. It would continuously accelerate, decelerate etc. I removed it and checked what it could be. The bellows were nastily cracked and brittle. So obvoiously: there is the fault. Either a new actuator (~€150) or new bellows (~€23). I gave the bellows a try. The bellows can be purchased at SNG und parts number "AEU4090J". It claims the bellows are for the XJ12 but heck, only €23. So I ordered them and they are the right ones. How to: 1. Remove actuator (1-3 screws on front of engine and undo the plug as well as the throttle wire connector) 2. If you have some sealant on the rubber, remove it (shouldn't be there unless bodged). 3. Carefully push the rubber off of the edges (it is only "wedged" in). 4. Be careful! The spring inside might hit your face :D 5. Do the same the other end. 6. Clean edges of metal discs. 7. Refit new bellows by carefully stretching over the edges. 8. Align the end plates so you can refit and mount correctly. 9. Install (don't forget the vacuum hose) and enjoy! Here a few pictures: https://farm3.staticflickr.com/2933/...3262ef2c_o.jpg https://farm6.staticflickr.com/5531/...518df645_b.jpg https://farm3.staticflickr.com/2917/...ff9084f8_b.jpg https://farm3.staticflickr.com/2930/...f00281df_b.jpg https://farm6.staticflickr.com/5113/...c416d17d_b.jpg https://farm4.staticflickr.com/3884/...ea24bf86_b.jpg https://farm4.staticflickr.com/3898/...19f96080_b.jpg https://farm4.staticflickr.com/3910/...c5d9c515_b.jpg https://farm6.staticflickr.com/5596/...ab1dbbb1_b.jpg https://farm3.staticflickr.com/2925/...ef9ca9c7_b.jpg https://farm4.staticflickr.com/3852/...20e08107_b.jpg https://farm4.staticflickr.com/3909/...3983c2e4_b.jpg Best €23 I ever spent on the car! :D Good luck! Damien |
Good work!
Cheers DD |
Great post! Cruise repair coming soon as I continue to sort through the multitude of problems my 89 has due to neglect. Exhaust under way, AC coming next. Cruise shortly after....
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This thread is 5 years old but I just replaced my cruise control bellows and wanted to add my observations. My cruise control worked but the car would speed up and then slow down repeatedly. The bellows looked good but on closer inspection it had a little cut in the rubber.
On a series 3 the whole assembly comes off with one bolt (on the top - easy to get to), an electrical connector that pulls apart and a little vacuum line that comes right off. I got the bellows from https://www.welshent.com/Search.aspx?k=AEU4090J $19 plus $5 shipping. When you pull the old bellows off, the big spring in there shoots out like a jack-in-the-box. Removing the old bellows and installing the new took maybe two minutes. So, bottom line, the quickest, easiest and cheapest repair I've ever done on a Jaguar. Jeff |
Tidbit:
That little barrel-nut and screw that holds cruise control cable is a pain. The end of the cable is always frayed; the whole set-up is fussy. I've lost more of those little nuts than I could shake a stick at To simplify future work I simply crimped a small electrical eyelet to the end of the cable and use a small machine bolt and but to attach the cable to the actuator. Less fussy to deal with Cheers DD |
Photo pleas Doug? I removed my CC for a variety of reasons, but one of them was I hated removing that accelerator cable from the eyelet!
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