won't start - oil pressure?
I'm having a miserable time with my E350. Seems to be oil related. Starting is the main issue. Once running, it rarely quits. I have changed my lpop for a Melling, and got only a slight improvement. The hpop reservoir empties itself sometimes - even with the Melling.
Another oddity it does is if you downshift for a hill i.e. revving hard in 2nd, and then you pop it into D because the road is flattening out, it quits. Has always restarted for me before I need to pull over, but get worrying with up to 10 seconds of cranking to restart. I have manual glowplugs, mechanical oil pressure gauge, and a mechanical hpop gauge. When 'warm' the readings with the old lpop are: hpop: 600psi idle, 1300psi revved lpop: 5psi idle, 45psi revved readings with Melling lpop: hpop: 600psi idle, 1300psi revved lpop: 10psi idle, 80psi revved It seems like my lpop can't keep up with my hpop. This serial # is not supposed to have a de-aeration valve (that can fall out). And my oil filter base has its relief valve retained by a snap ring. I'm not too sure where else I can be losing oil pressure. Any ideas? |
Cracked oil pick-up tube??? I know this happens and I believe there is a test for this.
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WOOOOOhoooo...
Your low pressure oil pressure is 5psi when warm? I would bet you have a bad pick up, or a worn or grooved front cover... |
Originally Posted by CSIPSD
(Post 860044)
WOOOOOhoooo...
Your low pressure oil pressure is 5psi when warm? I would bet you have a bad pick up, or a worn or grooved front cover... No groove. The timing cover looked good.... and so did the old pump that came out. |
Wait, so if you let the truck sit over night your HPOP res is empty in the morning?
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No, that hasn't happened. Its all the cranking.... if it's having a particularly stubborn go at starting, the reservoir runs out.
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