speedometer going crazy what could it be ?
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Registered User
Joined: Apr 2000
Posts: 524
From: Fort Worth , TX
speedometer going crazy what could it be ?
Recently my speedometer has been reading way off.
It happens when I am going over 50 mph and when I lay of the gas it jumps down really fast and goes back up really fast.
This is causing my torque converter to lock and unlock back and forth really fast. ( it is suppose to lock up at 45mph)
I have scanned my pcm with my auto x-ray and it did not throw any codes.
I have also watched the auto xrays reading of the mph when i lay off and it drops down like for example to 10 mph and back to what i am actually going to 55 mph. It happens I would say 50% of the time i am over 50 mph.
Any help with fixing this would be appreciated.
Jose`
It happens when I am going over 50 mph and when I lay of the gas it jumps down really fast and goes back up really fast.
This is causing my torque converter to lock and unlock back and forth really fast. ( it is suppose to lock up at 45mph)
I have scanned my pcm with my auto x-ray and it did not throw any codes.
I have also watched the auto xrays reading of the mph when i lay off and it drops down like for example to 10 mph and back to what i am actually going to 55 mph. It happens I would say 50% of the time i am over 50 mph.
Any help with fixing this would be appreciated.
Jose`
Registered User
Joined: Jan 2000
Posts: 173
From: from the land of Justin Wilson and Huey Long!
Chances are your speed sensor is on the blink. Replace it or check that none of the wiring going to it is faulty. Make sure you have a good ground. The speed sensor is a factory part, usually less than $50. Dal Lambert can ship you one for a bit less than the dealership...(just do a search for "Dal Lambert")...
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