i have searched the forums and found alot of people describing thier tires that they run on thier cars. now to describe my situation is my speedo is off about a steady +15mph. when i leave from a stop it almost instantly jumps to 20 mph. so my question is im running 205/40/17's and would that be enough to through it off that much. or does this sound like more a vss problem. also the car appears to have been converted from a/t to m/t. im trying to fix all the problems with that before i swap my tires for more reasonably sized tires like a 45 or 50 series. any suggestions would be appreciated.
If it isnt broke... Be prepared to fix it soon!
95 Eclipse GS - cold air, headers, full exhaust, test pipe. soon to be turbo'd.
I have heard of guys taking the needle off and going down the road holding a steady pace using GPS to measure the speed then sticking the needle back on at the correct speed. That might fix it. Otherwise you probably have an issue with the gauge cluster or the speedo sensor.
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#32919, "RE: possible tire problem." In response to Reply # 2
Had the exact same problem happen in my avenger years ago. It was randomly one day 15mph faster then actual. The heat gauge was messed up too so I swapped it for a different one and all was well.
#32921, "RE: possible tire problem." In response to Reply # 4 Jul-21-10 05:54 PM by Babbz413
Originally posted by Babbz413 Had the exact same problem happen in my avenger years ago. It was randomly one day 15mph faster then actual. The TEMPERATURE gauge was messed up too so I swapped it for a different one and all was well.
