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I have a new to us 08 e350 6,0 that had a little problem with the oil light coming on at idle and deltas of 20-40 degrees. I put a manual gauge on and press seemed ok, bad sending unit. So finally got back to it and just pulled the oil cooler. OMG it came out, hardly any "oil" around it but semi solid sludge 2 inches thick all around it. Looks like an old 302 someone never changed the oil on. The pic is 2 chunks next to a 1/4 snap on ratchet, ya my camera sucks drank too muck coolant. Anybody ever see sludge around an oil cooler before ?
I recall what engine in the class 302 looked like. Crusty oil goo.
I would use a oil suction gun and pull out as much as you can
then use a putty knife and remove more and then use your shop
vac to pick up any chunks that you did not get even before you
use brake cleaner to wash the reservoir. Keep as much as humanly
possible from running into the pump inlet channel at the bottom.
Just don't use an electric vacuum with solvent. Things can go BOOM.
Also you don't want to use any towels to rub the sides do to lint getting
from there through the pump and ending up plugging the IPR screen.
A solvent brush will help along with the spray can straw to help remove
the sludge down to clean casting surfaces.
How did the screen at the bottom of the reservoir look? If it's not ripped
you could use that to help keep things from going down the inlet.
Be sure to also suck the inlet clean of any fluids and gunk.
Something that help if you have a compressor and a Harbor Fright is one
of the brake bleeders that hooks to the compressor to make a vacuum.
Then it can be used later for doing brakes. I have used mine for removing
diesel from the filter housing. So very handy.
Heres a better pic, I found out today that this engine was replaced at a dealer in may of 13 about 50k ago. I cant see even if they never changed the oil in 50k that it could look this bad. Anybody think coolant in the oil might be a cause?
Did you check for coolant in oil? I cannot believe it even ran! Coolant in oil usually head gaskets, or worse. Oil in coolant usually oil cooler. Did it puke any coolant?
Didn't puke any, this thing literally has 10 miles on it since we got it Had 40 degree deltas and oil light on at hot idle. Did a manual check of pressure was within specs, even pulled the LPOP and was clean. Went to change oil cooler and surprise!
I want to send an oil sample out to see what they say, but we just changed oil vendors so im waiting to hear what the new procedure is to do that. I think that is the way to go cause I don't want to sign my name to this and have parts see daylight that should never see it.
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