Quote:
Originally Posted by speednjay
its always done this..say driving in the mountians hwy and going into a gently turn it'll disengage.
its possible that the tires arent the same...225/45/17 and 245/40/17. the rears are worn down prety good. i'll put the stocker 16" set on and see what happens. it has always disengaged going through windy highways but now its shutting down just from a little movement.
i guess i cant put a 245/5017 on the rear to get better gearing?
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Well, I am telling you that the reason it is doing this is BECAUSE your front and rear wheels are not turning at the same speed - have you always run mismatched tires on it? The ECU senses the slightest evidence of a "skid" and disengages the cruise. Mine did the same thing UNTIL I put a new set (all 4 matching) tires on it then it never did it again, EVER! The reason it only does it in a turn is because it doesn't go out of tolerance until you turn and the wheels on one side start turning faster than the other...then it trips the disengage order.
You're starting out with tires that are slightly smaller in back than in front, plus you have wear which makes them even smaller and turn even faster. I would bet you a dime if you went back to a matched set (size and type) it will stop disengaging on a turn. You can't even just match size, but size and type are critical because there is a tolerance between type/brands of the same size. The owner's manual is pretty clear too IIRC, it says use only a matched set of 4 tires on this car.
I have responded to this issue on here before, and every time using matched tires fixed it.
The only other common cause of CC problems is a faulty brake switch, but given your symptoms I would bet it is tires.