2004 Honda Civic LX Auto Trans. Speedometers reads approx 7 mph faster than actual speed (from 17 to 75mph indicated, measured with a GPS I know to be accurate). Odometer indicates approximately 102 miles for every 100 miles travelled.

First indication I had was speedometer behaving erractically ie; no indication when moving then it would work, then it would stick at one indication, then it would appear to be working normal. It has not acted up like that in over a year
(10,0000 miles ago - car has 27,000 miles now).

Everything seemed to be normal, I just thought I was getting great gas mileage. A friend drive the car and told me she thought it was going going slower than indicated. We did the GPS test, as well as running another vehicle alongside to compare.

I figured it was a faulty VSS. I replaced the VSS with a new one and had the same indication, 7 mph faster than actual.

What's next? The instrument cluster itself?

Any thoughts?

Mike

 

do you have other than stock sized wheels/tires in the car?

 

No sir, everything is stock.

 

thats pretty weird, thats a significant error.
if you already changed the vss, i guess the next step would be to test/swap gauge clusters to see if thats at fault, but its odd..

are you getting this warrantied?