Cruise Control

[sixpack]

2000 model with 360 magnum.
The cruise control don't work.
When it first started playing up sometimes the on/off button on the steering wheel would work (indicated by dash light) and sometimes it wouldn't.
I replaced the switch on the steering wheel with a new one but still no go.
Anyone got any other ideas?

 

[duke1992lx]

There was a recall somtime ago, for the clockspring. My 01 had the same prob. dealer fixed-working cruise

 

[sixpack]

There was a recall somtime ago, for the clockspring. My 01 had the same prob. dealer fixed-working cruise

Thanks for the info.
Not what i wanted to hear since there is no dealer support for Rams over here but at least now I know!

 

[Filipe]

Cruise Control and HVAC

I've red that cuise control problems are related to air conditioner problems.
If it is the case you may look undeneath the battery for a loose, deteriorated, or leaking vacuum supply hose at the spedd control servo.

Battery acid drips on this hose and destroys it. And it has to do with the HVAC.
The Cruise Control and the HVAC use the same Vacuum Reservoir, so if the hose is gone, both systms will fail.

The Vacuum Reservoir is mounted in the right cowl plenum area, under the cowl plenum cover/grille panel. The reservoir contains a one-way check valve to trap engine vacuum in the reservoir.

When engine vacuum drops, as in climbing a grade while driving, the reservoir supplies the vacuum needed to maintain proper speed control and HVAC operation.

Also, the vacuum reservoir may be damaged.

There is a TSB out on this, number 08-22-97. This bulletin involves installin a gasket between the battery tray and the Battery Temperature sensor (BTS) to prevent battery acid from dripping onto the speed control servo vacuum hose and replacing the battery.