Peterbilt 379 Fuel System problems by year

Brakes would not hold while in park, body bushings and support is worn and rusted. Fuel had lack of power and excessive fuel smell and would not start with out starting fluid and was the color of off road diesel. *Tr

After getting 2007 peterbilt washed I left wash bay to let truck dry. I shut the engine off. Upon starting the engine I saw smoke coming from right wheel well. I immediately shut the engine off. Hood started to buckle from heat. I raised hood and fire was located near left side of firewall. I got fire extinguisher out and put out fire. Fuel line had rubbed a hole in it by rubbing against a large power cable. Fuel leaked and spark from power cable ignited fuel. The truck is a 2007 -379 with a caterpillar engine. The truck has 300,000. Dealership told me tuff. This is a common problem on peterbilts and needs to be investigated. I am glad I did not wake up to find the cab engulfed in fire. *Tr

Tl*the contact owns a 2005 peterbilt 379 tractor. While driving approximately 65 mph on normal road conditions. There was a strong odor of fuel coming from outside of the vehicle. The fuel pressure gauge displayed fluctuated readings. The vehicle was able to continue in operation. Suddenly, the driver pulled over to the side of the road and exited the vehicle. The vehicle was engulfed in massive flames. The fire and police department were called to the scene. The vehicle was towed and completely destroyed. The failure mileage was 350,000. The vin was unavailable. Updated 11/16/10. *Lj

Dt*: the contact stated while driving various speeds, fuel leaked from the fuel tank. There were no obvious road hazards. The vehicle was seen by a dealer for inspection. The dealer was unable to duplicate the problem.

I bought a 2003 peterbilt 379 truck with a split tank in november 2002. Since brand new the truck never ran right, even the oil samples performed on the truck showed something was not right. I took it back many times to the dealership only to be told nothing was wrong. The dealership sent me to the caterpillar dealership because it was a cat engine, they said nothing was wrong. After spending thousands of dollars in having my truck towed from place to place and buying parts to try and find the problem myself, I found out that the diesel fuel is mixing in the hydrolic oil. The whole truck is now contaminated and is beyond repair. The truck is unsafe to drive.

Fault in fuel line equalizing and if you fill your fuel tanks the fuel ends up returning into one tank and the tank over flows. This causes two problems the first is creating an environmental hazard the second is a safty problem making the roadway slippery worst than driving on ice.*Ak

I own a 1999 peterbilt 379 with less than 700,000 miles. Today I had to replace a fuel tank strap that broke. Based on the age of the truck, it appears to me that it is a little premature to be replacing a strap, especially on something as critical as a fuel tank. I have also read there is a problem with the steering linkage, however I have never received any recall notice from peterbilt or anyone else. What do I need to look for to see if it applies to my truck? *Jb

Left rear fuel tank strap broke causing tank to hang from the truck, strap had hairline crack on inner side below weld, this may have caused extensive fuel leakage, dealer claims this to be a common problem. *Mjs