6.4L Power Stroke Engine and DrivetrainDiscussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008 Super-Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
I have ajob 2 truck with the sensors. I put a small lift and different tire and wheels on. The problem i have is the first set discount put on the nitto terra grapplers have a psi~50lbs. We found out after, from ford that the truck is set at 65psi, so we put on a set of "e"rated cooper mud terrains that made the light go out but now my ride sucks and they are loud. I can't get a straight answer from ford if they can reprogram the computer for a lower psi or am I stuck with tires i don't like or a dash light that is on all the time. Very frustrated. HELP PLEASE.
I understand the TPMS is a safety feature but I am glad my Job 1 does not have them.
Anyway from what I have read it is a relatively simple procedure for your dealer to adjust them. If the dealer gives you a hard time I'd be looking for a new dealer.
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2008 F-250 6.4l Lariat SuperCab Long Box 4x4
Last edited by thecougar : 02-26-2008 at 05:22 PM.
I have the same problem with the stupid TPMS light, I lowerd the pressure in my rear tires to 65 PSI becasue they ride too ruff at 80 PSI. If you find out any information on this issue please post your findings. Thanks!
Well I just got off the phone with a ford service manager and he basically said we are stuck until an aftermarket company comes out with something. Ford doesn't have any intention on changing it and they can't do it at the dealer either.When i asked what they are doing when they lift trucks and he said they haven't done any job2 trucks for that reason. So I hated the stupid light on my dash so I guess I'm going to keep these tires I hate for now. If they really suck you will see then on ebay.
I am still certain that there is a setting that can be changed in the ECU. As between the 250, 350, 450 there are a number of wheel tire combinations and I would find it doubtful that the tire pressure is the same across all options. But I have been wrong before.
Your truck should have game with an adjuster. It's a garage door opener deal that's grey. I lowered my pressures 5-10lbs from what the dealer set them at and reprogrammed the senors myself. It shows you in the owners manual how to reprogram them.
My buddy just got new tires and he reprogrammed his the same way. No lights or issues.
These are the same senors on most fords and lincolns.
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08 F350
Loaded Lariat 4x4 CC Long bed, backup camera
Kenwood DNX-7100 dvd/navigation/sirius
Sorry guys... TPMS set points are not adjustable on these trucks....
FWIW, TPMS is a function of the Smart Junction Box (not the PCM). Playing with wheel/tire combos will only alter the speedo reading (these trucks come with load range E tires...period). Look for a new dealer... he can't change it either... The "garage door opener"... it only comes with trucks that have tire pressures rated different from front to back so we can "tell" the SJB which sensors have what pressures. Trucks that are 65 front and 65 rear don't get one.
I want to put different wheels/tires on my new 08, anyone know where you can get the intire sensors/bands besides ford. They are $50/per wheel through ford! An extra $250 to my wheel/tire package !
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2008 Ford F-350 Lariat crew cab dark shadow gray w/all options except camera and nav.
2006 Dodge Ram 3500, CTD, 6speed, quad cab long box, mineral gray, bighorn edition, edge w/attitude, stainless nerf bars, billet grill, 285 BFG a/t's.
2003 F-350 XLT, crew cab, 7.3L, auto, 80k
2005 F-150 Lariat Supercrew, moon roof
2006 F-650 XLT, CTD, allison 5speed auto, 14' landscaper body w/fold down sides
1997 Ford F-250 XLT, extended cab, 7.3L, Auto 140K
1996 Ford F-250 XLT, extended cab, 7.3L, 5 speed man. 125K
When I bought my 08 back in November the sensors had been transferred to another rig. A buyer for a truck with the 20" tire/wheel package wanted after market tires & wheels. The dealer moved the sensors to his new wheels, put the 20" setup on the truck I eventually bought sans sensors. A couple of days (strange in itself) after I brought my truck home I started getting the low pressure warning. Brought it into the dealer only to be told my sensors had been robbed. Dealer ordered in and installed sensors in my truck which is when they and I learned that he system was not psi programmable. Sorry for the long answer.
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F-350 08 PSD CC Long Bed. Auto, 3.73, Dark Shadow Grey, Line-X, LT275/65R20 BFG Goodyear Wranglers, Leer Canopy. 2 German Shorthaired Pointers riding shotgun.
In Arizona, a lot of trucks get lifted with bigger, aftermarket tires. Even some of the Ford dealers themselves install lift kits and big tires. I test drove a brand new, unsold 2008 F-250 4x4 CC Diesel Lariat that had an 8" lift with 37" Toyo AT's. There was no TPMS light on the dash when I drove it. This thread and that test drive prompted me to call the accessories department that had installed the lift on the test truck. I asked how they solved the problem of the TPMS not being able to be calibrated for anything other than factory tires. They said it absolutely IS able to be calibrated and they've done it many times. They can't sell new, lifted trucks without being able to solve that problem.
To get a second opinion, I called a local offroad shop as well. They said that until today, they usually sent their lifted 2008's to the dealer for TPMS recalibration when larger tires are installed. But, as of today, they just got their own equipment to do the recalibration themselves. The offroad shop also said that they run a lot of their trucks at 35 PSI.
So, two different sources (Ford dealer and an offroad shop), both say they can and have done this. I guess if your dealer says recalibration is not possible for TPMS for different tire pressures, have them call the North Scottsdale, AZ Ford dealer for instructions on how to do it. Of course, you will need to have the sensor bands transfered to the new tires...again, according to my Ford dealer, this is not a big job.
I hope this helps anyone with TPMS and aftermarket tire issues.
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Ford F-350 Lariat crew cab dark shadow gray w/all options except camera and nav.
Linear Mode
