I have noticed my Edge reads 2-3 mph slower than my speedomoter reads. Is this normal? Im running it on level 2. I thought it would read a faster mph. The RPMs are matching though. It currently has stock tires.

Thanks
David

 

your factory speedo is off, only way to tell for sure is with a GPS

 

Yes its normal. Ive tried changing my tire size a dozen times to try and make them match and no luck. I thought I heard someone say the Edge is accurate but your MPH on the tucks are 2-3 faster then what your actually going or it may be the other way around. Again just guessing on this part and thought I read it somewere here in the forums before.


BTW..beckerjs those are some nice deer pics in your gallery. Need to some bigger bucks though.

 

those bucks are harder to get standing still, I'll work on it though

 

Thanks for the info. I found out dont leave your Edge in the cold. I left it out in neg degree weather and it took it forever to start. I guess Ill have to disconnect and reconnect every day until I can get out of Alaska.

David

 

My truck speedo is 4 mph fast and my Edge is 2 mph fast according to GPS.

 

It says in the Edge user's manual that it may be off a few MPH due to inconsistencies with the gauge cluster assembly, etc. etc... I'll go dig mine up and get the exact wording later - mine matches exactly.

Also give this a shot - look up your tire size in MM and load it in to the Edge - there is a chance the edge is set for a given tire size and you have smaller/larger tires, as Ford had many sizes available on the F150 they can't possibly have matched all of them in the canned tunes.

 

I asked the same question a few weeks back and ASEMECHANIC "AKA Bill" stated that is normal. The edge is the one that is accurate.

 

Thanks for clearing it up. I figured the Edge would be more acurate as it reads the PMC in your truck.

Thanks
David

 

That is strange because my GPS says that the Edge is wrong. When I checked the Speedo and GPS were dead nuts even, the Edge was 2-3 slow.

 

i had my truck tested by a cop radar it said i was doing 60 along with my speedo and the edge said 58 so mine is 2mph slow i have stock tires and rims

 

hmm.... Which one to believe? LOL!

 

well i myself and going by my speedo not only does it save a lil gas going 60 instead of 62 it may not seem like alot but its really is and plus getting a ticket for 2mph diff isnt worth it bc that 2mph can get u a ticket if the speed limit is 55 and i always do 5 over but if u go by your edge and it says 60 but your speedo and the cops radar says 62 can end up in a ticket lol just my 2cents