I have a 1998 Jeep TJ 4.0 with an automatic transmission. It will idle all day in park. When placed in drive the #11 fuse (PDC Coils 10A) may or may not blow. At first it was every once in a while. Now it is becoming more frequent. While in park and idling I have shaken the jeep and handled the visible wiring harnesses and it continues to run. Any help with this issue would be appreciated. Thank you.