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[natsys]

I've searched this site pretty good, and the only info I can find on HPOPs is pretty generic to the 7.3. I'm hoping I can get some input on specifics for the E series.

I had that big oil leak that ran down the back of the engine and dripped off the starter motor and blew all over the oil and tranny pans. Checking here revealed that I should delay blaming the rear main seal and take a good look at the top of the motor--sure enough, when I cleaned out the mouse nest there it was loaded with oil. Looking forward under the turbo, it appears that there is a drip coming off of the HPOP. I can't see it at idle, I can only see a residual drip after driving.

One source I really respect advises change the HPOP NOW! It will likely strand me. From what I've read here, I'm wondering if I should try to replace any o-rings or lines. Working on it is a real PITA so I don't want to do the job now and then again in 6 months. Any experience with HPOP leaks in the later 7.3's? Mine is a 2003 E450 with 71K, and it is a work vehicle, so it has to be ready to go every day. Funny thing is that the leak was pretty bad on Monday, leaving small puddles under the van--especially after highway driving. Now, on Thursday and more highway driving, not a drip. This kinda has me stumped.

One other note. I put in a DP Tuner chip about 3 months ago. Jody worked up some concoction to increase my fuel economy. Since I normally get around 10 mpg and now I'm about 11 I'd guess 10% improvement is pretty good. Did higher HPOP pressures cause a leak? Thanks in advance for any suggestions offered.