Freedom Diesels » Diesel Truck Tips

Diesel Truck Tips

This section of our site is dedicated to helping all of our customers achieve maximum reliability, fuel mileage, and performance out of their diesel.

Always keep in mind that you are driving a LOW RPM motor. Diesels work best generally between 1700 and 2500 RPMs. Their highest torque is here as is the best mileage numbers. If you push your diesel much past this range regularly, you are much more likely to develop “issues” that can be costly.
Try keeping your speed on the freeway at 65-70 MPH. In our experience most diesels pushed just 10 MPH over this recommended speed lost an average of 3-6 MPG!

2003-2007 Dodge Cummins Owners

If you own a 2003-2007 Cummins, pay attention! This new Ultra Low Sulfur diesel fuel is causing alot of issues with the newer Cummins. The filtration system on the Dodges only goes down to 5 microns and needs to go down to 2 microns. This axillary filtration system is fairly simple to install and will save a lot of injector headaches. This kit installed is only $355.

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Killer Dowel Pin (Dodge Owners)

The “killer dowel pin” as it’s called is a design flaw found on all Cummins from 1994-1998 and can cause major failure like these pictures shown here. The pin comes loose from its keeper inside the front timing cover, then gets wedged in between the cover and the cam gear causing the cover the break apart. This usually results in a repair costing between $1400-$2000. It can be eliminated for around $400 by Freedom Diesels as a preventative measure. Call us for more details.

Before Damage (Click for larger image)

After Damage (Click for a larger image)

FORD PEOPLE LISTEN UP!

This little tube on the side of the 4r100 automatic transmission has a check valve that regularly fails and causes the trans to overheat and die. The fix is this simple bypass kit sold for under $75 installed. Call us for any questions.

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DODGE 24 VALVE OWNERS

Low fuel pressure is a common problem on Dodges from 1998-2002 and causes thousands of dollars in repairs. With this simple kit a light will come on the dash when your fuel pressure gets too low and before the damage occurs. Its cheap insurance to avoid a costly injection pump repair. This kit installed is only $260.

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FORD 2003-2007 OWNERS

This is how the heads have to come off a 6.0 diesel engine and most of the time the head gaskets fail from the driver being too aggressive with the truck. Although the 6.0 has issues with head gasket failures stock a lot of issues are caused by the WRONG performance products. Most of the time we recommend head studs rather than bolts when doing this job. Treat your 6.0 gentle or it will bite you back.