2001 Dodge B1500 "shorty". It's got a couple of issues with the engine but runs . Got it for $1500. Anybody know anything about the 3.9 Magnum engine?
Previous owner said the head gasket blew and after the repair, the engine makes a rattle at part throttle on the interstate. Just tooling around town it's ok except for what sounds like crickets under the hood. Like a tensioner bearing.
Someone said it could be the torque converter but it's shifts fine and doesn't slip.
I pulled the doghouse off and can make the rattle with the van in neutral by reving the engine. Sounds like it's coming from the valve covers or that large aluminum cover on top of the motor. Sorry I know little about Magnum engines.
Here's a video:
https://youtu.be/fzBk91OG5Yw