Speedometer bouncing cruise control erratic
#1
11-25-2018, 09:36 AM
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Speedometer bouncing cruise control erratic
I have a 2002 Dodge Dakota quad cab SLT, with 4.7 V-8.
Speedometer began bouncing a couple months ago and
cruise control is behaving erratically! I cannot figure it out.
Does not have any check engine indicators or other check engine codes stored! Cluster selfcheck did not indicate any faults. I have replaced the rear speed sensor on the transmission, with no change in behavior. What else can be causing the bouncing and erratic cruise control behavior??
Speedometer began bouncing a couple months ago and
cruise control is behaving erratically! I cannot figure it out.
Does not have any check engine indicators or other check engine codes stored! Cluster selfcheck did not indicate any faults. I have replaced the rear speed sensor on the transmission, with no change in behavior. What else can be causing the bouncing and erratic cruise control behavior??
#2
11-25-2018, 10:22 AM
#3
11-25-2018, 11:14 AM
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Thank you you for your input. A local Dodge Tech told me it’s controled by the sensor on the rear of the transmission. I understand the one on the diff works in conjunction with the ABS. I don’t have a CEL, ABS light, brake light or any stored fault codes. I’ve also reset the ECU with no change. It isn’t bouncing all the time, but sporadically everytime while driving.
I have a 2002 Dodge Dakota quad cab SLT, with 4.7 V-8.
Speedometer began bouncing a couple months ago and
cruise control is behaving erratically! I cannot figure it out.
Does not have any check engine indicators or other check engine codes stored! Cluster selfcheck did not indicate any faults. I have replaced the rear speed sensor on the transmission, with no change in behavior. What else can be causing the bouncing and erratic cruise control behavior??
Speedometer began bouncing a couple months ago and
cruise control is behaving erratically! I cannot figure it out.
Does not have any check engine indicators or other check engine codes stored! Cluster selfcheck did not indicate any faults. I have replaced the rear speed sensor on the transmission, with no change in behavior. What else can be causing the bouncing and erratic cruise control behavior??
#4
11-25-2018, 12:06 PM
Legend
Pull the sensor out of the diff and see if there is an accumulation of metal on it.
2001+ 2WD only looks at the rear diff sensor for ABS and Speed
2001+ (electronic) 4WD compares the output shaft of the Tcase and rear diff
2000- (mechanical) 4WD compares the output shaft of the Tcase and rear diff to determine when case is in low range
Or that's how i best understand it. My 2001 2WD does not have a tailshaft speed sensor.
2001+ 2WD only looks at the rear diff sensor for ABS and Speed
2001+ (electronic) 4WD compares the output shaft of the Tcase and rear diff
2000- (mechanical) 4WD compares the output shaft of the Tcase and rear diff to determine when case is in low range
Or that's how i best understand it. My 2001 2WD does not have a tailshaft speed sensor.
#5
11-28-2018, 10:25 AM
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#6
11-28-2018, 10:33 AM
Captain
On my 98 it wasn’t the actual rear dif sensor it was the little wiring harness connecting it to the main vehicle harness. I had an 01 Durango that did not have the separate section of wiring harness though so I can’t say if your pickup has it or not. Unfortunately it isn’t sold separately as far as I’ve found I had to buy the sensor that included the wiring.
#7
11-28-2018, 10:50 AM
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11-28-2018, 04:49 PM
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11-28-2018, 06:04 PM
#10
11-29-2018, 12:49 AM
Legend