98 mercury grand marquis speedometer works intermittently


#1

what could be ready to go south and what kind of money? thanks for any info.


#2

No Check Engine light?

Tester


#3

no light.


#4

Could be corrosion on the electrical contacts on the back of the dash cluster. I had a similar problem with my 2000 Explorer’s tachometer. It would quit working, but hit the dash on top and it would work again. I needed to replace the backlight bulbs, so I cleaned all the connectors for the speedo, tach, and other gauges while I had it out. It’s behaved ever since.


#5

how long would cleaning these connectors take a garage to do, usually?


#6

I would clean the dash connectors as @busstedKnucles suggests and also the connector for the Vehicle Speed sensor.


#7

@grizz, ask for a quote. I don’t know how much needs to be disassembled to remove your dash cluster. It was a 2hr job on my explorer, but I needed to remove much of the lower dash.


#8

tester made me think, would this type of problem cause a check engine light to come on?