Originally Posted by tobor8man
Please let us know what you find out. I am experiencing a similar problem - i.e., a burning plastic smell (interior when vent or a/c is on) after driving a few minutes.
The smell you're experiencing sounds like oil dripping onto your exhaust manifold from the valve covers - a common repair with this engine. Replacing the valve cover gaskets will cure that.
To confirm shine a bright flashlight on the lower, rearmost bolt of the valve covers and look for oil residue on the cylinder head and exhaust manifolds. Also rub a rag on the bottom edge of the cylinder head. The drip isn't a real problem mechanically - more of an annoyance so you can wait if you need to.
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2003 Renegade, Black
- 3.7L, 42RLE, 4.10's, 4X Guard Trans skid, Factory Engine, T-case, Tank skids, Modded BoulderBars sliders, OME 927/948, Bilsteins, JBA A-Arms & 1/4" top plate, 1 extra rear iso/side, Moabs with Firestone Destination AT's 255/70-16