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Registered
Join Date: Mar 2004
Location: Knoxville, TN
Posts: 70
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sluggish speedometer
what would cause the speedo to read slower than what it should be until i quit accelerating. then it catches up to where it needs to be. it is on a 86 944 turbo.
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07-21-2004, 02:44 PM
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Registered
Join Date: May 2004
Location: Virginia/Ohio
Posts: 77
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If you have the same cable speedo a lot of us do:
Did the square fitting in the back of the speedometer get stripped? That would cause this issue, though I haven't seen it happen. If the collar that holds the cable is not screwed down completely, that may also do it.
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White 1985/1 944 --my first car --limited slip differential --cross drilled rotors --omnimagnum high-energy ignition --CB equipped --laptop installed, seeking GPS chip --keep the socks away from my car |
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07-21-2004, 05:38 PM
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Join Date: Mar 2004
Location: Knoxville, TN
Posts: 70
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i thought the 85/2 and up wasnt mechanical, but electric. i might be wrong.
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07-21-2004, 06:01 PM
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Join Date: May 2004
Location: Virginia/Ohio
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I don't know--I've only worked on the cable ones.
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White 1985/1 944 --my first car --limited slip differential --cross drilled rotors --omnimagnum high-energy ignition --CB equipped --laptop installed, seeking GPS chip --keep the socks away from my car |
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07-22-2004, 12:32 PM
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Join Date: Jul 2004
Location: Upstate New York
Posts: 3,262
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The 85/2 and newer speedometer (except for the 924S cars) are driven by an electric signal from the speedometer sender mounted on the transaxle.
If your speedo is sluggish, as you describe, the speedometer head needs to be serviced. There are several places that will charge you $100 to $150 to fix it. gb
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Good luck, George Beuselinck |
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07-22-2004, 12:48 PM
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Join Date: Aug 2001
Location: SW FL
Posts: 242
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If it goes to zero and back up sometimes then it is probably the impulse sender in the transaxle.
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'86 Guards NA 70K- driving 11yrs '98 Techno-Violet M3 57K- since 4/04 '55 MiG-15 UTI - Mach.97 -rebuilding '58 Cessna 175 w/GO-300 '98 Scarab Sprint, 4.3V, 62mph '92 Guards 968 (my girlfriend's) Gone... '82 Camaro Z28 1st car '84 VW Rabbit Cabrio & GTI '77 BMW 630 4spd sport bilstiens '84 POS Cavalier- drove to junk yard |
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07-22-2004, 01:33 PM
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Registered
Join Date: Mar 2004
Location: Knoxville, TN
Posts: 70
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well, i might just need the whole cluster. the bar gauge reads wrong at times, the fuel gauge wont go to full when i fill it up, and if i hit the dash hard, the water temp will lower.
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07-22-2004, 02:01 PM
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