[fiero355v8]

Anyone have a suggestion on this problem? I have a '92 Buick Regal Custom 2 Dr. with the Stage II 3800 (supercharged). Anyway,the car is in mint condition and only 34K miles. Has every option offered on this particular model.
One of those options is a Digital display speedometer,but yet Buick must have been stumped at how to engineer a digital odometer at that point.
So it has the age -old analog type odometer. This thing will work at times.and then seems to jam or stick for 10-20 miles---then work again ?
Any ideas out there? It's very annoying,plus throws off keeping track of maintenance schedule. Thanks !

[docvette]

Doc here,

Sounds like IT could be a couple of things..

Pull and check / replace the speedometer cable (s) and if you have a Cruise control you will have 2 of them ...be sure they aren't frayed and are properly lubed and seat in both ends properly..

If that is good pull the speedo, tear it down and check the magnetic motor for dirt and metal shavings sticking on the permanent magnet you can clean with a bit of real sticky tape..

Check the index pointer for freedom of movement, no contact with faceplate, or static parts...if found, carefully bend away from the obstruction..

last, rust, where ever you find it clean it, and before you re install it place a TINY bit of silicone lube on the area affected..

Doc