Hi, I recently had new u-joints replaced on my 97' f-150 4x4. Iam having trouble getting my grease gun tip on the zerk fitting? There isn't much room on these,is there a special grease gun tip for this???ThanksAlso how often should these be greased?;)

1997 Mercury Cougar 4.6 V8 Automatic While My car was in storage next to the house this winter I developed a leak in the plastic quick connect that goes to my fuel filter from the gas tank. I replaced the quick connect and fuel filter, however I think it threw a code when the fuel pressure was diminished from the leak in the gas line, and my service engine light came on. The shop down the road wants 98 bucks to read the code and reset it, and the same just to reset it. This is where I need the help. How do I get the service engine light off, assuming the low fuel pressure was the problem, without paying someone a hundred bucks for five minutes of work?