Q: I recently purchased a 2004 Nissan Sentra with the four-cylinder 1.8 engine and 74,000 original miles. From Day 1 it's had off-and-on hard starting. The dealer finally replaced the crankshaft ...

Q-You`ve written about hard-starting engines several times. Here`s something you missed. The 5-liter engine in my 1985 Oldsmobile Delta 88 was extremely difficult to start in hot weather without ...

Q. I own a 2000 Mercury Mountaineer with 83,500 miles. When it was extremely cold, I had a very hard time starting it. I put a bottle of Heet in the tank and for the next few days I had no problem so ...