Cruise control still dead

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Top of pagePrevious messageNext messageBottom of pageLink to this message   By Scott A. Keen (Scottkeen) on Tuesday, March 06, 2001 - 03:40 pm: Edit

The hoses look ok.

I need another round of trouble shooting. What's the next thing to check?

The vacuum pump? The actuator? Electrical? (God forbid!)

How can I test these things before I go out and have to buy new ones?

The vacuum hose coming out of the firewall goes to a "T". One end goes to the actuator by the throttle, and the other goes to somewhere forward near the headlight. I assume this is where the pump is.

Any suggestions would be appreciated.

Thanks,

Scott

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Scott A. Keen (Scottkeen) on Tuesday, March 06, 2001 - 04:07 pm: Edit

Also, could it be the speed sensor not working?

You have to be over 28mph for the cruise control to work, so possible the speed sensor isn't sending the speed.

Where is the speed sensor? I have the Haynes Repair manual, but it doesn't describe very well where the sensor is.

TIA,

Scott
97 Disco SD7

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Jay S. on Wednesday, March 07, 2001 - 12:33 am: Edit

Scott,
If you're feeling really ambitious, disconnecthe vacuum line from the "t" to where it runs into the back of the black vacuum unit. Give it your best Monica Lewinsky, and see if the throttle control mechanism on the other side moves as you suck. If you're sucking and it's not moving, you have a hole in the diaphragm inside the vacuum unit. If it moves back and forth as you suck, look elsewhere. Good Luck, Jay & Lazarus--'94 Disco.

Top of pagePrevious messageNext messageBottom of pageLink to this message   By Scott A. Keen (Scottkeen) on Wednesday, March 07, 2001 - 10:53 am: Edit

Hah! Good suggestion Jay. I'll try and do that when no one is looking.

Scott


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