Stalling problem at idle.
Oil leak.
Runs real rough, something with fuel injection.
Air conditioning doesn't work.
This has been a very good truck so far, even though the engine is starting to act up. This truck is very tough! Will take anything that I throw at it, (except mud, two wheel drive). Gas mileage is very good in the city, but I can't really get the truck up to 60-70 miles per hour (because of fuel injection problem). The 4.9 liter in-line six is one of the more reliable and bullet-proof motors that ford has made, mine is acting up because it hasn't been driven in a long while. Overall a very good truck, will keep it for a very, very long time.
I have a 1990 Ford 150 XLT Lariat and it is a good truck. I wish it could carry more weight, and it also tends to shut off when the engine is cold. I use it for everything and it hasn't let me down yet, except for a little rust from towing a boat, it's fine. These trucks just don't die.