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Volvo 740 cruise control engine bay wiring location and pedal switch 700 1989

posted by  stymes01 on  Sun Nov 4 23:35 CST 2012
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last visit: Sat Dec 29 23:20 CST 2012
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Hi all, I am attempting to add cruise to my 89 GL 740 5 speed. I have installed the computer, vacuum pump, bellows and intake components. I am stumped as to the location of the wiring harness for the vacuum pump in the engine bay. is there some wiring I am missing? Is it bundled up somewhere I can't see? In the cabin? Any thoughts would be much appreciated.

Also I have a 5 speed I am supposed to have 2 switches on the pedals to cancel cruise. I only have a mounting tab for one switch in the footwell above the brake pedal. Any idea why I only have one mounting tab for this switch? I also only have one wire to go to this switch. Supposedly there should be 2. thoughts?








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Volvo 740 cruise control engine bay wiring location and pedal switch 700 1989

posted by  Onkel Udo II on  Mon Nov 5 04:06 CST 2012
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last visit: Fri Oct 24 08:50 CST 2014
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Any chance your donor system is from a turbo? My turbo 760 had a vac pump but my '81 240 GL did not...just used engine vac.

The switch on the brake pedal should normally have two connectors if you have cruise...since yours does not, I think you can just splice the wire.

No clue on a clutch pedal switch as none of my cars with cruise had one.






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