2004 Chevrolet Tahoe Q&A

2004 Chevrolet Tahoe Question: can a faulty transmission cause inaccurate speedometer readings ?

seem to be going faster--according to the troopers --than speedometer says . waiting for transmission repair for slipping and rumbling over 50mph . -
Answer 1
if you changed the size of the tires, that is the most common issue. it can be calibrated by a speedometer repair shop. Roy -
Comment 1
the tires are 17's rather than 16's that are standard . would that cause the speedometer to read lower than actual speed ? thanks again -
Comment 2
yes it would the roll speed is slower with bigger tires. Roy -