Mechanics

THE TACHOMETER ONLY WORKS WHEN I HIT HIGH REVS

1999 Vauxhall Corsa • 68,000 miles

Hi I have a Vauxhall corsa 1.2 Vreg. The rev counter doesn't work untill you get up to hi revs. It works perfectly on a hot day. The same with the electric window in the drivers side. Will only go down a bit at a time then on a hot day works perfect. Can you help please
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Samfish
April 8, 2012.




Sounds like the tach needs to be replaced. A scan tool can verify an rpm reading from the pcm. If it has it, then it is a faulty tach.

As far as the window, I would replace the window motor.

Roy



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