Speedo problem
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- Stu
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Speedo problem
My speedo seems to jump around sometimes whilst I am doing around 60km/h.
To clarify, If I am doing a constant 60 km/h my speedo will go up to 70, flick back to 50, up to 70 then maybe 0 then back to 60 all in the space of a couple of seconds. It only seems to occur in the first few km's of driving.
Is this a common prob? Do I need to adjust something, get mechanic to do it, or is it the start of a more serious problem?
To clarify, If I am doing a constant 60 km/h my speedo will go up to 70, flick back to 50, up to 70 then maybe 0 then back to 60 all in the space of a couple of seconds. It only seems to occur in the first few km's of driving.
Is this a common prob? Do I need to adjust something, get mechanic to do it, or is it the start of a more serious problem?
- Stu
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- meanmx
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That's just the way you drive mate
. Sorry not much help. The only thing I can think of is that the connection into the gearbox or back of the dash cluster may be loose.
Ben

Ben
2014 VW Mk7 Golf R
2001 Black NB8B viewtopic.php?f=57&t=58136
1986 Mazda Luce Royal Classic (13BT Mazda 929)
2001 Black NB8B viewtopic.php?f=57&t=58136
1986 Mazda Luce Royal Classic (13BT Mazda 929)
- sprx3
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- Stu
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- meanmx
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You'll find the gps will be jumping all over the place as well unless you warm up your leg muscles before you get in the car instead of waiting until the heater warms them up. In this sort of weather it's called shivering
Ben

Ben
2014 VW Mk7 Golf R
2001 Black NB8B viewtopic.php?f=57&t=58136
1986 Mazda Luce Royal Classic (13BT Mazda 929)
2001 Black NB8B viewtopic.php?f=57&t=58136
1986 Mazda Luce Royal Classic (13BT Mazda 929)
- Stu
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- Garry
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You could try looking at the wiring at the gearbox. The speedo is electronic and the speed sensor is on the gearbox. The plug could be loose or if your car has had the clutch replaced the wiring may not have been secured properly and it could be flapping around causing an intermittent fault.
Shiney black one with added red bits. Member of the fart club. Now with extra doof and Sunlong. - deceased and gone to heaven
- Stu
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Re:
Stu wrote:Think I have fixed this problem.
The problem went away after I took some dodgy LED globes off the car. Just a though but maybe the speedo wasn't getting enough current?
Hi Stu,
Interesting, I would have thought that LED globes would use less current. There has been a number of recent posts on the big forum around the in-correct fitting of bulbs which caused weird things to happen.
J
Former owner of Mailbu Stacey, Smurfette and Tweety.
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