I recently took minivan to dealership to check into why it was misfiring. They ran diagnostic which indicated issues with cylinder 1 & 6, however after running compression test the feedback was cylinders are fine. After further checking they said there was a short in a fuse which caused the sequencing to be off, in essence when cylinder 1 was firing, gas was being sent into cylinder 6 as well and when cylinder 6 was to fire it would have double the amount of fuel. The feedback was they would have to search for the short but no guarantees or possibly replace wiring harness....just asking to see if this sounds like a viable diagnosis, my concern is man hours and cost associated since this is 2003 with 118k.
Jun 28, 2010 at 5:37 PM