02 dodge durango
Im having an issue i traded my 85 tx7 for a
2002 dodge durango and it supposedly has
a brandnew block and entire lower end... It
starts no problem but idles really rough and
has no torque (get up n go). And everytime i
shit it off theres about a quart of oil that
shoots out of the dipstick/tube
Sorry, any ideas on what it could be or where to start on trouble shooting it?
I would get it checked for codes first off, and if i understand what you said and assuming its the 4.7L it almost sounds as if your PCV Valve isnt working. Make sure its not stuck closed and that the hose coming from it is not blocked going to the intake, this is the more logical cause for that problem but another would be that it wasn't rebuilt properly and could have piston rings sticking, causing large amounts of blow-by (more than the PCV valve can handle) and forcing the oil back up the dipstick especially if its overfilled ( i assume this because you said it had work done on the bottom end). Now assuming you have minimal tools you could pop off the oil cap while its running and see if there's exhaust fumes coming out of it there shouldn't be much if any. next you could try a cylinder drop out test by unplugging the coils briefly while its running to see if you can find one thats not contributing (this will set a check engine light for each you unplug) the one thats not contributing would be your suspect cylinder next if you have the ability i would do a quick compression test on that cylinder and compare it to a neighboring cylinder to see what its at. im attaching a diagram that shows the PCV valve and hose to check. Hope this helps.
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