Hey guys, I have looked all over Google and searched through pages of threads in the forums here but I cannot find a remedy to my particular problem. I have a 2006 DTS (not performance) with 1235XX miles and I just got back from a 1600 mile trip. About 3/4 the way through the trip I began to notice a rough idle which is especially noticeable when it is in gear and I am waiting at a stop light. It will run fine for a bit then the rough idle comes and it kinda jumps as I hold the break. I also began to feel it doing the same thing when I am on the interstate doing around 65mph and going up a hill. To me it feels like a misfire. I did not have a check engine light come on the entire trip, but it still is acting up and I don't want to take it to a dealer if it is something relatively simple.
I read plenty about the horrible tear in the intake plenum that has plagued the 2000+ Devilles, but all the information I find only applies to vehicles up to 2005. Also, #8 coil and all plugs/wires were replaced in March of 2012 by the dealership. I then had all the plugs changed again last August after the dealer found a crack in one of them.
I would greatly appreciate any information or suggestions to help remedy my problem. I really enjoy my DTS, but if I don't find a solution very soon she will be taken to the dealer and traded in. Thanks!
I read plenty about the horrible tear in the intake plenum that has plagued the 2000+ Devilles, but all the information I find only applies to vehicles up to 2005. Also, #8 coil and all plugs/wires were replaced in March of 2012 by the dealership. I then had all the plugs changed again last August after the dealer found a crack in one of them.
I would greatly appreciate any information or suggestions to help remedy my problem. I really enjoy my DTS, but if I don't find a solution very soon she will be taken to the dealer and traded in. Thanks!