today i replace ckp sensor doue to p0320 dtc on my 2003 durango,but while inserting the new one the rubber grommet fell down,help please is it going to be a big problem?

 

Yeah, you'll need to fish it out. The grommet will interfere.

 

Where did it go, and are we talking about a Crankshaft Position Sensor?

 

CKS = crankshaft position sensor (as apposed to the CMP, cam shaft position sensor)

IIRC, there's an o-ring around the edge (at least on some CKSs, others might have more of a "gasket" type sealer). I bet this o-ring or something similar is the problem.

Either way, if anything gets into the cks hole, you'll need to get it out so that the cks works correctly.

 

yup iam talking about crankshaft position sensor

 

how can i fish it out? is there any dust cover/cover in the bottom that i can able to open