I read once on the net that the unloader needs to be greased with white lithium grease. There should be a hose washer on the coupling were the hose is attached. There is an O ring washer on the other side of the hose coupling which maybe needs to be replaced. I have the exact same problem as you with my 2401 Karcher with inconsistent pressure.

How old is it? Source of the oil leak? How welldoes it run? Ever been serviced? What brand of engine ? Mine(Generac) does NOT run well but at least leaks no oil, but it is only 5 or so...

Same story here. I purchased a VERY EXPENSIVE Charmglow Chef's Island version from Home Depot. In less than a year, about a half dozen parts had rusted out. I ordered the replacement parts, which took forever to arrive. Here I am 1 year later, and all of those parts are in need of replacement AGAIN! Fortunately, my husband has skills and has now made several of the parts that had rusted out with stainless steel replacements. However, some of the parts he can not make, and I am having a difficult time finding replacements. The parts that have needed replacement in two years of use are the cooking grids (twice), the heat idicator (thermostat), the collector boxes (twice), all of the heat tents (twice), all of the burners (twice), and some heat plates (separating the burners from the searers), and the ignitor switch. I might as well have just trashed the entire grill, but after spending over $1,000 that was not an option. Never again Brinkmann

Drew, Was your bad vibe in Milford by any chance? Prices there are a few hundred more than in Meriden, and I really liked everyone I spoke to in Meriden. I found prices in New Milford to also be high. I am not able to install the insert myself, and New Milford was $100 more than I'll be paying, just for installation. I don't anticipate any problems with the installation. The dealer won't even set up an installation appointment until/unless the stove or insert is at the dealership. Which is one reason the Harman insert was just going to take too long to arrive. The price of natural gas in CT (SCG) went up 31% per ccf just this last month (versus the previous month). And it is going to go higher. I think that buying a wood burning insert was a smart thing to do! If natural gas prices go up as high as they are predicting, the insert will definitely pay itself off within 2 years. Anyway, good luck with your Pacific Summit insert. I am sure you will enjoy it! I will add an addendum to this post in November, when my insert is installed. Hopefully I'll have a couple of cords of wood by then, though I have enough to burn for at least a couple of weeks now. Let us hope for a mild winter, now that we are prepared! Have fun! Rhonda