My oil pressure at a cold start hits around 40-60 then drops slowly after engine warms up to around 10-20. I removed the valve covers and cleaned the ports, dropped the oil pan and cleaned it out and upgraded to a high capicity oil pump. If the main bearings were worn, wouldn't there be some metal dust in the oil I drained? There is no engine noise other than the usual and I turned the motor over and watched the valves to make sure they were oiling. They were but not as well as they should have. Also, I changed the oil sending unit out for a manual guage. Is there anything else that could cause this besides the main bearings? I'm willing to accept that it may be the problem but I want to consider whatever else it might possibly be
2006-10-30 09:32:12 · 5 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Was informed that it could be caused by worn teeth on the distributor...is that possible?
2006-10-30 11:39:02 · update #1
Clogged oil sump screen. drop the pan and clean.Possible to much blow by.
2006-10-30 09:37:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋
You have covered quite a bit and gave some good detail. It is normal for oil pressure to drop once it warms up. does it climb again when your under hard acceleration? is it at 20 when your cruising? Oil is always thicker then the motor is cold. Did you recently change brand names of filters? If so go pick up an OEM filter and see if you have the same problem. some of the after market filters (because they do not filter as well) have a low back pressure and cause the oil to flow more easily. use the OEM filter and see if your pressure sticks to where it should. But again it's still not uncommon to have the oil pressure drop when the motor is at normal operating temperature.
2006-10-30 09:43:44 · answer #2 · answered by gearnofear 6 · 0⤊ 0⤋
that's normal behavior for a dodge or any other vehicle to do that as long as it doesn't drop to 0 while at idle your fine with it,if it starts doing that or fluctuating real bad change the oil sending unit on it they was bad to go out and cause that to happen at low idle,what makes it do that is the pressure relief valve in the oil pump its designed to only hold a certain amount of pressure,good luck with it.
2016-05-22 12:55:05 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Since you put a manual gauge in and I'm sure you cleaned the sump filter, there's not much besides the mains or a massive leak that could kill the pressure that much with a good pump. The filter probably caught all the metal.
2006-10-30 11:05:48 · answer #4 · answered by Nomadd 7 · 0⤊ 0⤋
Clogged oil sump screen. Bad oil pressure sensor. Bad guage. Loose wires to sensor. Clogged internal passageways. Lumpy,coagulated oil caused by emulsification of radiator water in oil from bad head gasket leak.
2006-10-30 09:47:42 · answer #5 · answered by pjnickles 2 · 0⤊ 0⤋