DTC 565 code. Checked sol purge solenoid by unplugging harness, hooking up vacuum guage and starting engine. No vacuum. With engine running, plugged in harness and vacuum dropped. Solenoid is functioning. Truck runs OK until after warm up. MIL comes on while cruising. Then goes off and engine looses power(dramatically) does not immediately respond to trottle input until pressing the accelerator pedal all the way to the floor. Then engine runs fine again for awhile when this whole process begins all over again. 565 is the only code I see.
HiCustomer Thank you for asking your question on JustAnswer. The other Experts and I are working on your answer. By the way, it would help us to know:-What year is your Ford?-What model is your Ford?-What type of engine is in your Ford?Thank you again for trusting us with your problem. Please reply as soon as possible so that we can finish answering your question.
1995 Ford F150 4WD automatic with 302 engine. High milage but with no problems up until now. I also forgot to mention that at first when I saw 565, I did find a cracked vacuum line between the solenoid and the intake. I replaced the line and at the same time cleaned the MAF internal wire with electronics cleaner. The problem went away for a long time but now it's back. The fuel filler cap looks OK but I have no way of checking it. The oxygen sensor is original. As I ststed earlier, when the malfunction occurrs, the throttle is momentarily non-responsive and the engine lacks power.
Here is the pinpoint test for the code.I have found that following these tests are the best way to get to the bottom of the problem.On Board Diagnostics I A PCED
DTC 565 or 569 indicates a failure in the CANP solenoid circuit.
In a dual CANP system (7.0L Truck) DTC 565 refers to CANP1 and DTC 569 refers to CANP2.
30 years with Ford dealers
I do not have a breakout box. Where could I get one? Does the throttle response issue actually lend itself to the CANP malfunction?
Any Ford dealer will have a break out box.You can also check the wires to the PCM directly if you can't find a break out box. The throttle response is likely not related to the CANP unless it has an electrical issue that could be feeding through to other circuits.I suggest repairing the CANP and then retesting for throttle concern.On Board Diagnostics I A PCED