Taking a long trip Sunday for an entire week, anyone know of common failures between 100k-120k miles? Alternator etc...? 08 screw 4x4 5.4

 

They do have common problems but its hard to put a mileage estimate on them

 

The only 2 things that have failed on my 08 was an Idler pulley and my over 5 year old battery...good luck on your trip.

 

Hi.

Inspect - and replace if in any doubt - yer FPDM. And carry a spare one.

May also want to install a fresh fuel filter and a new serpentine belt.

Also check to see that you can easily remove and reinstall the spare ( test the access hole lock, winch and condition of the spare. ). Good time to do it as you need to drop the spare to see the FPDM anyway.

Do a scan of yer PCM to pull any codes - including possible pending ones - and get those addressed before you leave.

Good luck & safe trip !

MGD

 

Spare Belt. FDPM. Idler Pulley. COPs. Transmission

 

Thats odd...I have 174k and have not had any problems with an FPDM.

 

I made it to 189k before mine crumbled in half.

 

All depends on where u live and how u treat your truck. If u live up north they are prone to go early due to all the salt on the road. Same thing anywhere if u mud ride a lot. Mine had 190000 before mine went.

 

Fpdm ?

 

Fuel Pump Drive Module
Mounted above the spare tire. It has aluminum body and is mounted to steel frame. Electrolysis eats the aluminum case and exposes the electronic module.
Take a look and if it is damaged, get a new one from Amazon or parts store and replace before it fails.