Cruise control shut down

[tkswan]

2002 LS V8.

Should a low fuel condition (or less that 1/4 tank) cause the cruise control to disengage itself.

[joegr]

No, but a no fuel condition would.

[shorod]

Is this a common occurrence, or did it only happen once? Ie: does the cruise seem to work fine for 10 miles then shut off, or is it only when the tank is low that you have a problem?

-Rod

[tkswan]

Originally Posted by shorod

Is this a common occurrence, or did it only happen once? Ie: does the cruise seem to work fine for 10 miles then shut off, or is it only when the tank is low that you have a problem?

-Rod

apparently its happening consistently. This is happening on a 2000 year LS, Buddy of mine. I told him that it seems odd that the level of the fuel tank would shut off the cruise control, or maybe its the 50 miles to empty low fuel alarm is shutting it off electronically. I also thought the clock spring is starting to fail but all the steering wheel controls seem to be working fine.

I told him i would ask "the LS wise men" on this forum what they think.

[shorod]

I wouldn't rule out the clockspring.

-Rod

[tkswan]

Originally Posted by shorod

I wouldn't rule out the clockspring.

-Rod

yep. he told me that it shut down on him again while on the road this weekend. He had a 3/4 full tank. So the other incidents where the fuel was low was just coincidence but im betting clockspring is starting to fail.

[joegr]

Originally Posted by tkswan

yep. he told me that it shut down on him again while on the road this weekend. He had a 3/4 full tank. So the other incidents where the fuel was low was just coincidence but im betting clockspring is starting to fail.

Things that normally do disengage the cruise control:

1. The off switch on the steering wheel. A bad clockspring could fool the electronics into thinking this switch was pressed.

2. The brake light switch. If just thinking about pressing the brake pedal can make the brake lights come on, this might be the problem.

3. The hydraulic brake pressure switch. This is a redundant safety cutoff for the cruise control.

4. Not enough engine power to maintain speed.