Tuesday's record-low temperatures affected low tire pressure. Temperatures dropped from the 80s to the 30s, which can result in a roughly five-pound loss. Having low tire pressure can lead to poor ...

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 ...