Dear Old check engine light
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Freshman User
Joined: Feb 2004
Posts: 38
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From: Georgia
Dear Old check engine light
Hello,
I have a 1994 F250, heavy duty, supercab, 460 engine, E40D tranny. I can crank the truck and run it around town and the CEL never comes on. As soon as I get on a faster highway and run it up to 60 -70, the CEL comes on. Truck seems to run fine. When I slow back down the CEL does not go out. It goes out when I turn the switch off, and does not come back on til I get up to higher speeds again. Any ideas??? Thank you in advance.
I have a 1994 F250, heavy duty, supercab, 460 engine, E40D tranny. I can crank the truck and run it around town and the CEL never comes on. As soon as I get on a faster highway and run it up to 60 -70, the CEL comes on. Truck seems to run fine. When I slow back down the CEL does not go out. It goes out when I turn the switch off, and does not come back on til I get up to higher speeds again. Any ideas??? Thank you in advance.
