Fuel, speedo, tach and temp needles start bouncing wildly. This has happened 3 times now at random, usually on the freeway. On this instance, the problem continued for 10-20 miles until I stopped and shutdown the van for a few minutes, but sometimes the gauges return to normal after 30 sec (according to wife)
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what I have encountered in the past is the ABS module was the cause. what happens is the wire connections become loose and fail to make proper contact, causing the brake,abs, and speedo to stop for short or long periods of time.if equiped with a tach it also will jump from 0 to 1500 or other places. I have noticed that the other components such as speed sensor,abs plugs, or instrument panels does not make all of the above things do this all at once. like I said this has been my findings and only suggesting a hopeful fix for your issue. best of luck to all.
Hi there! I am having the same issue. It seems like every time that it rains a lot this happens. Check the battery though, the ground connection of my battery is wet every time this happen's. Check if the battery is damp or wet, that is usually what causes it for me. I am in the process of getting a cover for it, or putting electrical tape over it.
COULD BE GROUND PROBLEMS OR THE TACH GOING BAD.EVEN THOUGH CAR SEEMS TO BE RUNNING GOOD IDLING GOOD.SOME TIMES A SPARK PLUG MISFIRE.CAUSING A LITTLE ROUGH IDLING CAUSING TACH NEEDLE TO GO CRAZY.I SEEN ALTERNATOR WITH VOLTAGE REGULATOR GOING BAD CAUSE A POWER SURGE CAUSING HEAD LIGHTS TO DIM A LITTLE THEN BRIGHT WHILE ENGINE IDLING.THIS WILL CAUSE TACH METER NEEDLE BOUNCE AROUND ALSO.
Purchase a new keyless remote FOB. The signal from the remote is weak and loses contact with the anti-theft module in the instrument cluster. We have 2 sets of keys and 1 worked while the other caused the instrument cluster needles to jump and jam the gear selector. The problem is not the car's battery, alternator, wiring or instrument cluster.
inspect the throttle valve control rod. there could be a small part that has worn out, usually made of plastic and the size of a dime. if this part is missing out worn out it will make the trans shift at the wrong time. it happened to my lincoln once and i thought the trans was going out.