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Hello, what engine and trans is in this e series? Gas or diesel?Transmission stall test was low?WHen does it start loosing power up a hill? At highway speeds?
Ok so fuel pressure was good during the concern, but you said stall speed was low? Stall speed test is only done at wide open throttle at a stand still. No codes now that the mass air flow sensor has been cleaned. Will it pass a key on engine off and key on engine running test? Are you towing when going up hill and the problem occurs? No modifications done, all stock?
Hello, do you need more help with this concern?
Ok just following up, didnt hear back from you. Glad you got it fixed!