Two problems related to engine have been reported for the 2005 Lincoln LS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Lincoln LS based on all problems reported for the 2005 LS.
2005 Lincoln Ls will start to skip and sputter especially on incline. Engine light does not go on. Replaced fuel filter and problem still has not gone away.
Ford Lincoln Mercury~manufacture warranty extended on ignition coil - but each time ignition coil goes out it causes numerous "other repairs" costing $900+ each time. ~ vehicles begins to run rough, the temperature gauge goes to top, the car looses power (while in traffic even though foot on accelerator) will not accelerate~ 5 times in less than 11 months~ these "other repairs done each time ignition coil is replaced should be covered under extended manufacture warranty. (incidents June 2009/ October '09/ January 2010/ March 2010/ April 2010).