There is a TSB covering 3.5L engines built before Feb. 17, 1995 that deals with no cold starts below 0 degrees. It involves using only Champion RC-12-LYC plugs gapped to .035", the use of 5W-30 oil and a reflash of the PCM to the latest software. The TSB# is 18-15-95. I had a cold start problem with my 95 LHS two yrs.ago and have had the TSB fix done. The weather in Chicago has not been
all that cold this winter so I don't know if the fix works but the car does seem to be leaner when cold but is OK when warmed up. It would flood in the cold before the change.
FredB
all that cold this winter so I don't know if the fix works but the car does seem to be leaner when cold but is OK when warmed up. It would flood in the cold before the change.
FredB
