Speedo not right on highway?
#11
02-02-2014, 04:34 PM
If possible, go out on the Interstate or other freeway with mile markers. See if the odometer shows 1 mile from marker to marker. Then drive 60 mph and time it. Should take 60 seconds to go 1 mile. That way you'll have a better idea if it's wrong or not and then go from there with diagnosis or repair.
Can't really rely on GPS. I've seen some of the lower priced ones be off upwards of 5 mph either way.
Can't really rely on GPS. I've seen some of the lower priced ones be off upwards of 5 mph either way.
I know that my TomTom is accurate within a mph or two at 65 though.
Last edited by BaseDrifter; 02-02-2014 at 04:40 PM.
#13
02-03-2014, 10:00 AM
I think you're going about this the wrong way.
You're chasing a "problem" that may not exist based on a 10-20mph variance in speed from two peoples' memories at different times.
Do you have a GPS? Compare the GPS speed to your car's speed.
I could be wrong, but I would bet your speedometer is working just fine. If it wasn't, I doubt it would read +-10mph. Usually they either work or they don't.
You're chasing a "problem" that may not exist based on a 10-20mph variance in speed from two peoples' memories at different times.
Do you have a GPS? Compare the GPS speed to your car's speed.
I could be wrong, but I would bet your speedometer is working just fine. If it wasn't, I doubt it would read +-10mph. Usually they either work or they don't.
#15
02-09-2014, 01:17 PM
Have you ever tried to match speed and distance with someone on the interstate? It's kind of a PITA. Were the two of you keeping the same interval from one another or were you doing the ruck march slinky?
+1 on the mile marker method.
Also there was an iphone app called speedometer or something we used to use back in my drunk driving all over the country phase... worked pretty well I think, might be worth a shot
+1 on the mile marker method.
Also there was an iphone app called speedometer or something we used to use back in my drunk driving all over the country phase... worked pretty well I think, might be worth a shot
#17
02-09-2014, 08:26 PM
If possible, go out on the Interstate or other freeway with mile markers. See if the odometer shows 1 mile from marker to marker. Then drive 60 mph and time it. Should take 60 seconds to go 1 mile. That way you'll have a better idea if it's wrong or not and then go from there with diagnosis or repair.
Can't really rely on GPS. I've seen some of the lower priced ones be off upwards of 5 mph either way.
Can't really rely on GPS. I've seen some of the lower priced ones be off upwards of 5 mph either way.
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