Check the Iacv & inspect if it’s clean and has no carbon deposits then check the throttle body and get some throttle body cleaner and firmly but carefully clean it if it’s dirty with carbon deposits making sure you don’t hit the butterfly plates, to get a even better clean have someone press the gas while the truck is off to clean under the butterfly plates when it opens. Also the Tbps & Map sensor, even the air filter and make sure it’s either clean or new.
Sudden engine cut out/loss power
Hi all - have a ‘99 3.9L v6 4x4 Dakota Sport, about a week ago was driving down the road at approx 40mph when all of a sudden the engine cut out, and lights on dash went out except for a code which showed up in location marked by arrow in attached photo. Too worried about getting rear-ended plus needing to find safe place to pull over didn’t pay attention to what code was. After pulling over code was gone. Tried restarting multiple times, engine tried to turn over but didn’t. Waited about a minute, then it started up like normal and I was able to drive the remaining mile home. Have driven it a few times since, short distances no problem. No code stored in system, checked myself then had Autozone check and guy there asked me if check engine light came on when engine/power cut out - told him no, no engine light so he said that’s why there isn’t a code. Don’t know what the code was that I saw then or what most likely cause was....any ideas?
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