Hi Gang! Our 170,*** mi. '94 4×4 e4od idit F250, Raylan, recently started drinking more oil. I first noticed it on a 1300 mi. round to Virginia Beach to pick up a 96 geo tracker for a VW IDI diesel swap. These motors are loose and tend to use some oil, so I wasn't too concerned, but the oil consumption increase was pretty noticeable. Maybe 4+ quarts total, most on the return trip, which I attributed to pulling a load... That was about 2 weeks ago and I haven't really used the truck much at all other than a few short (5-8mi.) trips. Yesterday, we went to the farmer's market and ran some other errands. I noticed that it seemed to be making more valve train clatter. I'm pretty deaf, but my wife confirmed it. After the market,when pulling out, I felt/noticed a little stutter or something like a slight miss which didn't continue to be noticeable. When we got to our next stop,15 minutes away, I opened the hood to find the dipstick pushed up an inch or so with plenty of blow by showing. I popped the fill cap and not surprisingly, there was a lot of blow by that didn't decrease with increasing the revs. We had one more local stop and than a 45 minute drive home. That's when we noticed that the oil pressure had dropped to just a hair over 25 psi @2000 rpm and 12.5 psi at idle coolant, temp was consistent at 195° Prior to this, it was more like 25psi at idle and 45psi at speed. Of note is that the oil pressure did not increase with more revs, I never paid attention to this before, perhaps that's normal? IDK... Of course I didn't push it, but the gauge did not fluctuate up to 2500 RPM. When we got home, I recorded a video of the blow by which I'll post up shortly. What's the opinion of the collective? As always, many thanks to all!
Gaah!!
