Speedometer off

[M Baldwin]

Speedometer on my 99 always reads 4mph above actual speed. Every time I pass a speed trap, whether I'm doing 35 or 65, it's always off by 4. Ideas?
Thanks!

[JFP in PA]

Originally Posted by M Baldwin

Speedometer on my 99 always reads 4mph above actual speed. Every time I pass a speed trap, whether I'm doing 35 or 65, it's always off by 4. Ideas?
Thanks!

They are all off a few miles per hour high on purpose.

[JackDidley]

Originally Posted by JFP in PA

They are all off a few miles per hour high on purpose.

True. My '08 always says its +2 over what my GPS says. Same in my Chevy truck.

[M Baldwin]

Originally Posted by JFP in PA

They are all off a few miles per hour high on purpose.

I guess that makes sense. It also explains the tailgaters when I thought I was doing 5 over.