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Cruise Control Sloppiness??

When I would set the Cruise Control on my previous cars - a Ford Explorer and a Ford Ranger - the car would maintain the exact mileage set. If I

set the Cruise Control for 62 mph, the Explorer would maintain 62 mph

-not slow to 61 mph, and not speed up to 63 mph .

In contrast when I set the Cruise Control on my 2006 Forester to 62 mph,

the car will vary in speed between 60 mph and 64 mph, depending on whether it is going uphill or downhill.

Is this condition the result of a design deficiency in the Subaru

Cruise Control, or is my Forester's Cruise Control malfunctioning? The Service Manager at the Subaru Dealership seems to think this is normal behavior for a Subaru.

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Reply to
david11697
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This is normal on my manual 5 speed 2005 Forester.

My 1996 Ford Ranger with automatic would hold the speed more closely but it would use full throttle and downshift to do it which does not help with fuel economy much.

When going downhill the only slowing affect is engine braking, which in overdrive is minimal, so I have heard of cars with automatics that downshift to maintain speed when using cruise control.

The Forester has less wind drag than the Ranger & Explorer so it will coast downhill faster.

Blair

Reply to
Blair Baucom

I've had some success with this on two vehicles, my OB and a Mercury Villager. On top of the carb/fuel injector thing whatever it's called now there are two throttle cables, one goes to the accelerator pedal and the other goes to the CC controller. Remove the play from both these cables, just like adjusting the brakes on a bicycle. The cruise should set right where you hit the button. It might or might not help the overshoot, but it can't hurt.

-John O

Reply to
JohnO

My 2006 Forester manual does the same thing. My old 97 OBW and current 02 Passat hold the set speed batter than the Forester.

-- Vic Roberts Replace xxx with vdr in e-mail address.

Reply to
Victor Roberts

My Japanese made 05 Outback does the same thing. Varies 2-3 kph.

Reply to
Phil

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