Breakdown Information
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This is a breakdown incident on our 2004 Itasca Meridian, Freightliner chassis, Caterpillar C-7 engine with 48,000 miles on it.
Upon exiting an interstate hiway in Wisconsin, the engine died when pulling up to the stop sign on the off-ramp. It simply would not start. After many attempts and after putting the accelerator to the floor when cranking, it fired and roughly came up to RPM. It ran rough after that so I had both fuel filters changed. That didn't work, it still ran rough, misfiring at lower speeds. I took it to the nearest Freightliner dealer and they diagnosed it at a faulty HEUI (Hydraulic-Electric Unit Injector) or fuel pump. After it was replaced the engine ran fine. However, the Freightliner service dept. contacted Caterpillar and was told that if there are any metal particles found in the old HEUI, all six injectors should be replaced. Since the engine ran ok at cruise speeds, I elected not to do this due to the high cost. We drove it back to Arizona and it ran just fine and appeared to have more power than ever before.
In summary, it appears that Caterpillar installed poor quality HEUI's on 2004 C-7 engines, I learned this from several RV forums. I would be interested in how many of these specific problems with the Cat C-7 are mentioned in this forum topic.
Upon exiting an interstate hiway in Wisconsin, the engine died when pulling up to the stop sign on the off-ramp. It simply would not start. After many attempts and after putting the accelerator to the floor when cranking, it fired and roughly came up to RPM. It ran rough after that so I had both fuel filters changed. That didn't work, it still ran rough, misfiring at lower speeds. I took it to the nearest Freightliner dealer and they diagnosed it at a faulty HEUI (Hydraulic-Electric Unit Injector) or fuel pump. After it was replaced the engine ran fine. However, the Freightliner service dept. contacted Caterpillar and was told that if there are any metal particles found in the old HEUI, all six injectors should be replaced. Since the engine ran ok at cruise speeds, I elected not to do this due to the high cost. We drove it back to Arizona and it ran just fine and appeared to have more power than ever before.
In summary, it appears that Caterpillar installed poor quality HEUI's on 2004 C-7 engines, I learned this from several RV forums. I would be interested in how many of these specific problems with the Cat C-7 are mentioned in this forum topic.
