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Cat C9 on a 2007 Fleetwood Revolution. Was driving to dealer…

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Cat C9 on a...

Cat C9 on a 2007 Fleetwood Revolution. Was driving to dealer for some routine items and after a few miles into the trip, the engine had very little power until I reached about 40 mph. Literally took 3-4 minutes to go from 0 to 40. Once I reached 40, the engine came alive again and performed normally. The check engine light would come on during the acceleration to 40, and then disappear once the engine began to pull. Asking because the dealer doesn’t do engine work. Thanks

Mechanic's Assistant: What is the complete model and serial number of your machine?

I don’t have that information with me, it’s on the RV

Submitted: 6 months ago.Category: Medium and Heavy Trucks
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1/5/2018
Technician: Cat Man, Cat Engine Expert replied 6 months ago
Cat Man
Cat Man, Cat Engine Expert
Category: Medium and Heavy Trucks
Satisfied Customers: 9,396
Experience: I am ASE Master Truck Certified.
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Thanks for asking your question. I will try and help you out.
There are many things that can cause the light to come on and cause low power.
Most often it’s either a low fuel pressure problem or an injection actuation pressure problem.
Sometimes you can use the cruise control switches to pull codes. Here is how.Use the following procedure to retrieve the flash codes from the check engine light:
Turn the ignition key switch to the On position/ Engine OFF.
Turn the cruise control ON/OFF switch to the OFF position.
Move the SET/RESUME switch to either position. Hold that position until the yellow lamp begins to flash.
The yellow lamp will flash in order to indicate a two digit flash code and the SET/RESUME switch may be released. The sequence of flashes represents the system diagnostic message. Count the first sequence of flashes in order to determine the first digit of the flash code. After a two second pause, the second sequence of flashes will identify the second digit of the flash code.
Any additional flash codes will follow after a pause. These codes will be displayed in the same manner. Flash Code 55 indicates that No Detected Faults have occurred since the ignition key switch has been turned to the ON position.Let me know what two digit code you get and I can tell you what the problem is.
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Technician: Cat Man, Cat Engine Expert replied 6 months ago
Hey. I just wanted to see how things were going. Please let me know if you need more help. I am happy to assist. If my information was helpful, please leave a good or higher rating so that I receive credit. Thanks.
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