My upper kingpin won't take grease. Well, it might have taken a tiny bit, but not much, not even one good squirt. The lever on the grease gun just was rock solid and nearly impossible to move. I even changed the grease nipple and it still wouldn't. The other upper took about 10 squirts and it came out like it is supposed to.

Does this mean there is a problem with the kingpin?

Should I jack it up and try to grease it without the vehicle weight on it?

Should I try to have a power grease gun do it?

Thanks

 

when i do my kingpins i jack up one side at a time and it works better. try jacking the truck up and doing it.

 

try spraying wd-40 inside the kingpin wait 12 hours spray agian, do some figure 8 turns, try the grease again ( works good)

 

Why don't you replace the Zerk Fitting. They do go bad from time to time.

 

I agree. go to autoparts store and get a package of zerk fittings . there cheep

 

In his original post he said he did replace the grease fitting. I am not sure what year truck this is, but on my 77 F150 you can unscrew the end caps and clean them out if need be.

 

This is a 1997 Class A motorhome chassis. I jacked up the wheel on that corner and was able to get some grease in, maybe 4 pumps. It was a bear of a squeeze on the lever, but it seemes to have worked. Still nothing seemed to come out the opposite gap. I'm going on a 500 mile soon and will try again after the trip. Maybe it will work loose. And yes I did change the zerk fitting, using an angled fitting the last time, which worked much better for removing the grease gun.