6.4 new owner, 3 months. Bought it with 20k on it, now have 25k on it. Nothing but poor gas mileage and a blinking GPS screen (anyone have ideas on this one?). Truck is divine, rides good, drives good and pulls great under a load. Just the aforementioned mileage woes @@...and the GPS screen blinks at times.

 

Your truck should be under warranty the GPS should be fixed under the 3/36

 

Yes it is under warranty. Just figured I'd ask to see if anyone else had a similar issue and what the fix was.

 

In my opinion the best fix would be a "N E W" GPS

 

What he said

 

I think a +1 would be in order here. I need to get the changed anyways. Thanks for the replies folks.

Like most here I'm waiting on warranty to expire and get rid of the useless items on the truck.

 

My 6.4 has 358 days of warranty left then I'll dpf & egr delete

 

Going to order a CAI and a Spartan tuner and delete the thing and remove it after the warranty. I work overseas so am gone a month at a time or more....so I can always take the batteries out let it sit to reset everything...works on the SVT vehicles at least.

Having a 6" lift could prove a battle. But the Ford house looked at it and had no problems with the set up. So long as I don't break an axle or drive shaft they will work me...so say!!

But I would love to bump the mileage up a bit!! If anyone knows anything else that can be done to help the mileage out please share. I'm pretty new to the 6.4!!

 

08 Job 1 CCLB Dually H&S mini maxx with kem custom tunes, S&B cai, flo pro 5" turbo back, flo pro egr delete with elbow, cold side cac pipe, sinister coolant filter, recon lights all around, hid's in the headlights, (fog lights coming soon) mods to come in the spring are 6.0 ported and coated manifolds, custom up pipes, elite 72mm atmo, arp head studs, elite ccv mod, also considering dual fuelers, ported intake, and bigger sticks

Chris

 

Thats what I want to get done to mine. But it must wait.