| Author |
Message |
    
Robert Sublett (Rubisco98)
| | Posted on Wednesday, May 01, 2002 - 08:11 pm: | 
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Hello all, it seems when it rains it pours for us Disco owners ) The cruise control stopped functioning about 5 months ago on my Disco. The dealership, while I had it in for routine maint. checked it out and said it was just that the vaccum hose had come loose, and they didn't charge me anything, which was a miracle. Then, about a month ago, the cruise control would work until you hit "decel", in which case it would kick off as if I had hit my brakes. I didn't think too much of it but then it quit alltogether a couple of weeks ago. Dealership says it is the vaccum pump and they could do it for a mere $425. I'm not so sure as to trust them since they were unable to locate a problem with my brakes and it took you nice folks here on Discoweb about 2 hours to answer my questions.. I don't have ABS anymore, but problem is solved. So, please help if you can with the c.c. issue. Any info on where the pump is located(I'm pretty much a beginner in having to work on my own vehicles) or any diagrams you know of that would be useful.. I would appreciate anything you could do for me.. Peace.. RS |
Bill Molnar (Circekat)
| | Posted on Wednesday, May 01, 2002 - 09:48 pm: |
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Hi Robert! On the Series 1 Disco, the vacuum pump is located under your jack in the engine compartment (Have a 94). The main vacuum from there goes around your air cleaner and to a tee, which goes to the throttle and towards the fire wall and into the the vacuum switch at the brake pedal. I can scan you a copy of the locations diagram if you are in 94-96 as that is what my book covers. Other questions would be: does your electrical switch still illuminate? If the unit was only working with decel switch, I would suspect either the switches or the rotary coupler. FWIW |
Ron
| | Posted on Thursday, May 02, 2002 - 05:41 am: |
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what year is your disco?
Why don't you check for vacuum at the hoses?
Ron |
Robert Sublett (Rubisco98)
| | Posted on Thursday, May 02, 2002 - 06:14 am: |
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My disco is a 1996 model SE. How would I go about checking for vaccum? |
Brian Jackson (Nerover)
| | Posted on Thursday, May 02, 2002 - 06:09 pm: |
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I have a question along these lines...
On my vacuum pump, there seems to be a missing vacuum hose. How many vacuum lines should run out of the pump? One or two? If two, where does the second one (not mentioned in the post above) run to? This would be the one I can't locate, not the one running to the T-piece by the master cylinder.
Thanks
Brian |
Kevkor
| | Posted on Thursday, May 02, 2002 - 06:55 pm: |
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The other one is to dump the air when you hit the brake.There shoouldn't be a hose there unless you ran a breather hose from it up higher.Which will lengthen the life of the pump.Water can get into that dump valve when submerged and ruin the seal.No more cruise. |
Bill Molnar (Circekat)
| | Posted on Thursday, May 02, 2002 - 07:34 pm: |
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Robert,
You have mail! |
Brian Jackson (Nerover)
| | Posted on Thursday, May 02, 2002 - 11:43 pm: |
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Thanks Kevin,
I just moved the pump higher (to where the jack used to be) and cleaned it all up. Thanks for the info. BTW, did you get your CD yet? I sent it out Monday.
Brian |
Kevkor
| | Posted on Friday, May 03, 2002 - 07:22 am: |
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Yeah.Yesterday.Thanks alot.I thought I had a lot of shots.When the guy I borrowed the camera from burned the photos to disk, he put some kind of Adobe snapshot viewer on it so you can see a thumbnail of every shot instead of just the cameras name of the shot.Real nice.Working on getting that program on your disk. |
Brian Jackson (Nerover)
| | Posted on Friday, May 03, 2002 - 03:02 pm: |
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Cool man, I loved the Wild Bill shots from Jeff! LOL |
kitster
| | Posted on Friday, May 03, 2002 - 06:56 pm: |
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I did some troubleshooting on my CC, that ended up being the little computer brain behind the glove box. Anyway, you can check the Vacuum pump with a friend by running a fused jumper between the CC ECU connector terminal No. 1 (Orange/Blue wire) and battery voltage, and another fused jumper between CC ECU connector terminal no. 7 (Orange/red wire) and ground, and one more fused jumper between CC ECU connector terminal no. 6 (Orange/pink wire) and ground. When you've got that all rigged up, the vacuum pump should operate causing the actuator bulb to compress (why you need a friend). If your pump operates, and the bulb compresses, then your problem is something else ie. Brake kill switch, Switch problems at the steering wheel or main switch, or the CC ECU itself. If your pump doesn't operate, the check the Orange/pink wire between the CC ECU and the pump to see that wiring is not suspect if everything is copacetic then you need a new pump.
HTH, good luck,
Kit |
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