revolver
NAXJA Forum User
- Location
- Austin, Texas USA
The cruise control in my '90 Laredo hadn't worked since I got the vehicle, and exploring around under the dash one day I discovered that the wire harness plug that goes into the back of the yellow cruise control computer was loose. I snapped the plug back in and now all aspects of the cruise control work perfectly--- except for one.
Especially at highway speeds, when I hit the button on the end of the stalk the system kicks in and immediately accelerates the vehicle to about five mph faster than I was driving when the button was pressed. Sometimes, especially it seems if I'm going up an inclined section of road when I engage it, the cruise control will nearly FLOOR the gas pedal, often causing the auto transmission to downshift. I recently installed a high-flow cat and Magnaflow muffler and you should hear this thing when it takes off like this! It's like hitting the afterburner in the Batmobile! It will then steady the speed out a good 5-6 mph higher than what I was travelling when the system was engaged and keep on keeping on all normal like.
My first question is this: is this behavior normal? I don't really have any way of knowing since I'm not the original owner of the vehicle.
I was hoping TPS might have something to do with it. I recently changed the way I adjust my TPS using a multimeter (went from setting output voltage at 4.2 volts to .83% of input voltage) and although now the Jeep runs better, this cruise control behavior remains unaffected.
Any ideas?
:revolver
Especially at highway speeds, when I hit the button on the end of the stalk the system kicks in and immediately accelerates the vehicle to about five mph faster than I was driving when the button was pressed. Sometimes, especially it seems if I'm going up an inclined section of road when I engage it, the cruise control will nearly FLOOR the gas pedal, often causing the auto transmission to downshift. I recently installed a high-flow cat and Magnaflow muffler and you should hear this thing when it takes off like this! It's like hitting the afterburner in the Batmobile! It will then steady the speed out a good 5-6 mph higher than what I was travelling when the system was engaged and keep on keeping on all normal like.
My first question is this: is this behavior normal? I don't really have any way of knowing since I'm not the original owner of the vehicle.
I was hoping TPS might have something to do with it. I recently changed the way I adjust my TPS using a multimeter (went from setting output voltage at 4.2 volts to .83% of input voltage) and although now the Jeep runs better, this cruise control behavior remains unaffected.
Any ideas?
:revolver