speedometer calibration
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From: Israel
speedometer calibration
Is there a way to calibrate the speedometer?
I checked it's accuracy with a GPS and found that the speedometer shows that it goes apx 5% faster than real speed.
this reduces the warrenty by 5%....
eysham
I checked it's accuracy with a GPS and found that the speedometer shows that it goes apx 5% faster than real speed.
this reduces the warrenty by 5%....
eysham
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Joined: Nov 2006
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If you did nothing to the truck (like changing tire size or swaping out gears), then warranty should cover this due to it being a defect.
If you did something to the truck that would effect the spedo/odom, then the dealer can correct it through the computer but it will cost you around $70.
If you did something to the truck that would effect the spedo/odom, then the dealer can correct it through the computer but it will cost you around $70.
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From: Israel
no mods done
thanx for the quick reply.
the truck is 100% stock.
now i wonder how i will prove this to the dealer...
also, i wonder if the dealers here have any idea how to change the parameters to calibrate...
F350 PSDs are not that common around here...
the truck is 100% stock.
now i wonder how i will prove this to the dealer...
also, i wonder if the dealers here have any idea how to change the parameters to calibrate...
F350 PSDs are not that common around here...
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Joined: Nov 2006
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Originally Posted by eysham
...now i wonder how i will prove this to the dealer...
also, i wonder if the dealers here have any idea how to change the parameters to calibrate...
F350 PSDs are not that common around here...
also, i wonder if the dealers here have any idea how to change the parameters to calibrate...
F350 PSDs are not that common around here...
Sadly enough, if they dont/cant find something wrong or if in reality your GPS is wrong, they might charge you for the time.
Last edited by DonJames; Jan 30, 2007 at 02:07 PM.
Tuned
Joined: Apr 2005
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Have them check the PCM flash. That has the parameters for the tire combo. My bet is it had the wrong flash for a different tire combo. Would also push for them to prorate the warranty also, if it winds up being a Ford factory screw-up.
Flip side, is that it is considered normal for a speedo to be 3%-5% under actual speed reported.
Flip side, is that it is considered normal for a speedo to be 3%-5% under actual speed reported.
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From: Israel
Originally Posted by DonJames
Well.......LIE! Tell them that you got pulled over by a cop and received a verbal warning for going ___ mph over the ___ mph speed limit. Dont tell them that you got a ticket or a written warning because they would want to see it. Tell them that the cruise control was on the exact speed limit when this incident occured. Even though you might of only been going 3 mph over the 70 mph speed limit, you must of caught the cop on one of those bad days but after talking to you he decided to be nice.
Sadly enough, if they dont/cant find something wrong or if in reality your GPS is wrong, they might charge you for the time.
Sadly enough, if they dont/cant find something wrong or if in reality your GPS is wrong, they might charge you for the time.
i'll check with the dealer, though I still doubt he would know what to do to fix this. probably will go with the claim that 5% is a normal deviation...
