The 5 Worst Diesel Trucks To Buy Used

The 5 Worst Diesel Trucks To Buy Used

Are you thinking about buying a used heavy-duty diesel truck?

Then you must know not all diesel trucks are created equal. It's important to know which models to stay away from before you begin your search. The last thing you want is to make a poor investment.

Read on to learn which trucks to avoid.

1.Chevy & GMC 6.2L Pickup

After the creation and disaster of the 5.7l diesel pickup, Chevy decided to change things up a bit. They hired a different engine maker to create a better diesel engine.

The result was the 6.2L engine. This engine is not bigger than the size of a Volkswagen bug, which means it's not the most powerful.

The 6.2L only comes with 130 hp -- only 40 more than a modern-day Smart car. Owners of this car also had to make costly repairs due to the constant oil leakage from the main seal.

2. Chevy & GMC 6.5L Pickup

The 6.5L Chevy pickup came with a little bit more power than the 6.2L. Yet, this diesel truck couldn't compete with other similar engines.

This is another of the chevy diesel trucks that had a lot of mechanical issues. The most common issue was the pump-mounted driver. Without this unit, the power supply cannot fuel the solenoid.

The result is a truck that stalls or doesn't start, period.

3. Ford Super Duty 6.0L

Ford has also had its share of poorly designed diesel engine trucks. The 6.0L Ford's engine didn't make the cut. In fact, this modern diesel engine was one of the worst ones.

There was, in fact, a lawsuit between Navistar and Ford over this engine. The suit cited issues with the head gasket and fuel system repairs.

Any repairs made to this issues required the cab to be removed. Just imagine how expensive this repair is.

4. Ford Super Duty 6.4L

After the 6.0L engine fiasco, Ford decided to replace this truck with the 6.4L heavy duty.

This truck, however, wasn't much better than the 6.0L. It still has many issues which include the same fuel system failure as the 6.0L.

The truck is also infamous for oil dilution, which leads to a lack of lubrication and the end result is engine failure.

5. Chevy & GMC 5.7L Pickup

The engine of this pickup truck is similar to a vintage Oldsmobile. What Chevy did with this truck was take the gas model and turn in into diesel.

This move didn't make the truck more efficient, in fact, it turned it into a money pit. Not only is this truck and oil burner, but it has problems with head bolts.

Other issues include high compression ration, weak torque, and lifted cylinder heads.

Worst Diesel Trucks Final Thoughts

Remember not all diesel trucks are created equal. When it comes to buying a used diesel truck, avoid looking into these models.

It's always a great idea to read consumer reports and educate yourself on which diesel trucks are the best.

Want to read about 4 tips for Diesel Truck Care? Click here to read.