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Speedo problem never seen before...

rattie

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I have a 1999 VT HSV GTS 5.7 stroker with a 6 speed manual...

The speedo will only go up to 75 km/h and then stop while the car keeps accelerating...

Have try to fix by:
New Transducer.
Sent speedo away to get fixed/checked
Changed PCM.

Holden workshop cannot work out the problem
And other Auto elecs are confused also.
This is becoming an expensive problem and really would love some help.
Thanks
 

88GreenVN

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have you tried a different cluster? It may set off error cods n stuff - but you could test the speedo to see if it gets to 110kph.
 

rattie

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Wow this problem has really not attracted many solutions.
I thought someone out there would have some ideas... bugger.

The cluster tested all good, so I didn't see the point of testing another cluster.
 

stanza

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I've got the same problem.

But in a vt ss s1 5.0lt manual.

my speedo stops at 60k's.

i also put a new speed sensor and cluster still no good.
 

rattie

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Going in the shop again tommorrow, to see if they can nut out a solution.
I will let you know if they come up with something.
 

rattie

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There is a speed converter in the dash that was faulty. this was really only the HSV for the gearbox conversion... but it may help you

works a treat now.
 
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