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11-25-2008, 11:27 PM
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#1 |
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Registered User
Join Date: Nov 2008
Location: San Diego, CA
Posts: 13
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erratic speedometer
Just noticed this while I started sitting at idle, it would jump to 10-15mph while 'supposedly' sitting at 0 while braked at a light, after I had just got done cruising at an easy 35 for example. It is also about 5-10mph "faster" than what I'm really doing on the road/highway. I don't mind but would eventually like to have it fixed if any of you have any suggestions. I'm planning on replacing with an alternator, this is what I have on it right now....
  thanks y'all!
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USMC Miramar I Hope They Serve Beer In Hell - TM 1967 Chevy C-20 Fleetside "Mr. Ron Burgundy" |
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11-26-2008, 12:07 AM
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#2 |
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Registered User
Join Date: Oct 2007
Location: Sherwood Oregon
Posts: 1,908
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Re: erratic speedometer
Mine does that too, kinda bounces all around. Stays steady while driving though. I'm not worried about it but it would be interesting to know what causes it
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11-26-2008, 12:18 AM
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#3 |
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72 Chevelle Club
Join Date: Jun 2007
Location: Newton , Iowa
Posts: 2,052
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Re: erratic speedometer
I would say that the cable is binding inside the outer casing and unbinding it's self when you stop and making the speedo jump. My 2 cents. Bob
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I Have The Right To Remain Silent,But Lack The Ability 1972 Chevelle ... Mine 2006 Trailblazer... Hers 2002 Buick century ... Kids 2002 K1500 Z-71 EXT CAB ... Daily Driver 2005 Rockwood Roo ... For Camping 1974 Harley-Davidson XLH Sportster 84'' stroker |
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11-26-2008, 07:20 AM
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#4 | |
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Watch out for your cornhole !
 
Join Date: Jun 2003
Location: Azle, Texas
Posts: 14,162
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Re: erratic speedometer
Quote:
As for the innacuarcy, you'll need to change the plastic gears in the trans tailhousing. There are several threads here on doing that, as well as calculating the needed gears, if you search for it.
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I'm on the Instagram- @Gearhead_Kevin |
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