Thanks for the replies . . . I agree, if the lift pump is not getting power, that is easy to diagnose . . . . unfortunately this is my brothers truck and he is located 5hrs away from me. Just getting the information from him, from what his mechanic told him . . . I personally would try to "hot wire' the lift pump to see if it works . . . then go from there . . . but sounds like brother is just going to wipe his hands of issue by selling truck "as is" . . . shame, after all these years . . .but he & wife are in their 70's and don't want to be "stranded' anywhere . . . truck is in good condition, other than this issue.

My issue with his mechanic, is saying "replace" the ECM, without any explanation other than "I always replace when there are that many kms/miles on truck" . . . seems like a good way to make $$$$$, without actually diagnosing what is "Actually" not working . . .

Just wanted to see what the collective wisdom of Moparts on subject was . . .

Thanks,