no tach @ high rpm

eliteeurocars · #1 (**permalink**) 07-10-2010, 10:28 PM

Also nticed when motor would rev up that tach dies out. Seems to work fine up to around 4700rpm's and after that it goes to zero like it loses signal. Thanks again!

Jwellcraft · #2 (**permalink**) 07-15-2010, 06:23 PM

Quote:

Originally Posted by eliteeurocars

Also nticed when motor would rev up that tach dies out. Seems to work fine up to around 4700rpm's and after that it goes to zero like it loses signal. Thanks again!

Sounds like you have a bad voltage regulator.