Richard Mills Posted October 8, 2018 Share Posted October 8, 2018 My 2005 Disco 3 showed no fault light, but did have error code P140A. Which is from the left hand EGR valve, circuit 3 low. With a new valve in hand I was able to prove it was an electrical fault while the EGR valve still worked, may be not OK . As expected I was unable to change said valve in it's entirety so opted to change just the actuator. It still was pretty hard to do, but possible. This fixed the fault. Below are the pictures that show the various bits. 3 screws remove the actuator from the casting and the thing springs to one end. It needs a finger in the EGR output to stop the bar moving while the "U" shaped actuator thing is giggled into place. I stripped the actuator down to find exactly what I expected, the coil comes off seperately and has no problem (resistance of 4 ohms). The real failure can be seen in the last picture, the tiny wipers that run on the feedback tracks have fell off. It's always the smallest bit! The easier fix might have been to just change the feed back section, held on by 4 screws, it located with a "D" drive to the coil, but it would have been just as fiddley as it has the return spring inside it. Quote Link to comment Share on other sites More sharing options...
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