Wednesday, July 3
Oil pressure - or rather the lack of it - in certain parts of your engine can become a major repair nightmare. All engines lose a certain amount of oil pressure over time as normal wear increases bearing clearances. But unusually low oil pressure in an engine, regardless of mileage, is often an indication that something is seriously wrong and requires immediate attention.
That "tappet" noise may be only one sticking lifter but it may also indicate an oil flow problem that will eventually cause damage to at least one valve.