My car is an 07 magnum when the car is in park the speedometer is at 60mph and when driving it it Reads at 120 but I am only doing 30 miles an hour before limp mode any idea what it could be any help would be appreciated
What makes this problem better or worse?
Nothing
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Does scanner live data mph readings match the speedometer reading during test drive??
Does your scan tool have instrument cluster scan capability?
Do you have a ‘professional quality’ scanner - not a code reader - a real SCANNER ?
Did a test on the speedometer and it all tested fine no codes are popping up with a scanner
Does scanner live data mph readings match the speedometer reading during test drive?? Does your scan tool have instrument cluster scan capability? Do you have a ‘professional quality’ scanner - not a code reader - a real SCANNER ?