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Join Date: Jun 2004
Location: NY
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Cant figure out speedo problem

Ok....as my last topic I posted about my speedo starting to work again the day I got my new parts...I didnt get to install the new impulse sender yesterday....so the speedo worked today until i hit a slight bump on the ocean pkwy (all concrete) and it just dropped to 0.

Today, I put the car up on the lift and pull the old sender out. Looks perfectly fine....I get the nut off and pull the plastic gear out of the tranny..no broken teeth or anything, put it back in and try to turn it and it doesnt turn, which means the metal teeth in the tranny arent broken off either. Put it all back together and check put the new sender on. I take the car out for a drive and still nothing. I pull the gauge cluster out and pull it apart, and the circuit board behind the whole speedo assembly is fine, no broken solder joints or wires. It sits nice and tight, and all the connections make contact, but the gauge still doesnt work. I know afjuvat says to clean all the connections which I did, but where is the ground? is it bolted to the chassis right around that area? I didnt look because I dropped my drop light and it broke the bulb (and I didnt have another)....

Any ideas anyone? is it time to get a new speedo?


btw my odometer gear had 2 broken teeth on it...I spun it around once and the entire gear literally fell apart in my hand....
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1985 944 / 2007 335i / 1987 325is / 1985 535i / 1999 528iT / 2006 X5
Old 07-30-2004, 10:34 PM
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