The main one was friends Mercury Mountaineer. 4.2 V-6 IRC it had a metal alloy timing chain tensioner and three timing chains, one on the back of the motor that required removing the transmission to replace. It had 72K for miles and regular oil changes. Metal filings from the tensioner dropped straight down on the oil pump pickup tube. This caused either the pump to fail or the pickup to plug. He lost oil pressure and damaged the bearing on the crankshaft. Zero help from Ford or the dealership.
Also the 5.4 engine where a nightmare on blowing spark plugs. The later ones seem to have that figured out.
The long and short of it is Ford often does not have very good engine designs. It seems like it takes them a few years to get the bugs out of any "new" engine they produce.
Also around here the local Ford dealers are not the best to deal with. When my friend's Mercury had issues we hauled it to the dealer he bought it from. They told him they never had any issues on the 4.2 V-6. Well that was a total lie. Just google it and there were hundreds of post about the trouble. Then to make it even better there was a program form Ford that they had program to address the issue up to 60K miles. My friend was the original owner and had it serviced at the Ford dealership. Neither was any help. He switched to Chevy and has had good luck with his Equinox.
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Today's Featured Article - The David Brown Rose Badge - by Samuel Kennedy. In the 13th century civil war was raging in England. Two English noblemen were involved in a conflict which became known as the War of the Roses. The Duke of York had as his emblem a white rose and the Earl of Lancaster had a red rose. Today the white rose is the official emblem of the county of Yorkshire and the red rose has been adopted by the neighboring county of Lancashire.
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