Need help! Oil pressure Gauge goes crazy then stops working, and then knocking starts
Need help! Oil pressure Gauge goes crazy then stops working, and then knocking starts
So when I start up my truck 3.0 v6. The oil pressure gauge will work for a few minutes then start having a seizure and goes nuts, during which the engine starts knocking atfter the gauge stops working completely. Then at a idle the truck will die but it will start back up but the problem persists. It has been sitting for about a month being started occasionally so the battery doesn't die.
Welcome to the forum
If there is ANY noise associated with loss of oil pressure then do NOT run the engine, the noise means this is NOT a gauge/sender issue, its a REAL loss of oil pressure
Couple of things you can do first
Check the oil level, maybe you are low, if so thats the problem, after startup oil is pumped to the top of the engine and it takes awhile to drain back down so oil pan runs out of oil
Change the oil filter, and add a quart of oil, a plugged oil filter can cause your issue
You can start the engine, but if you hear a noise then shut it off ASAP
After this you are down to oil pump drive and oil pump, which means lifting or pulling the engine to get oil pan off
Was oil pan gasket repaired at any time in the past, people often use RTV sealant on oil pan gaskets, and use TOO MUCH, so when pan is re-tightened little ***** of RTV drop into the pan where they are sucked up into the oil pump's pickup screen and block flow
You can sometimes use a snake camera thru the drain plug to see the pickup screen
If there is ANY noise associated with loss of oil pressure then do NOT run the engine, the noise means this is NOT a gauge/sender issue, its a REAL loss of oil pressure
Couple of things you can do first
Check the oil level, maybe you are low, if so thats the problem, after startup oil is pumped to the top of the engine and it takes awhile to drain back down so oil pan runs out of oil
Change the oil filter, and add a quart of oil, a plugged oil filter can cause your issue
You can start the engine, but if you hear a noise then shut it off ASAP
After this you are down to oil pump drive and oil pump, which means lifting or pulling the engine to get oil pan off
Was oil pan gasket repaired at any time in the past, people often use RTV sealant on oil pan gaskets, and use TOO MUCH, so when pan is re-tightened little ***** of RTV drop into the pan where they are sucked up into the oil pump's pickup screen and block flow
You can sometimes use a snake camera thru the drain plug to see the pickup screen
Last edited by RonD; Mar 4, 2020 at 01:04 PM.
Welcome to the forum
If there is ANY noise associated with loss of oil pressure then do NOT run the engine, the noise means this is NOT a gauge/sender issue, its a REAL loss of oil pressure
Couple of things you can do first
Check the oil level, maybe you are low, if so thats the problem, after startup oil is pumped to the top of the engine and it takes awhile to drain back down so oil pan runs out of oil
Change the oil filter, and add a quart of oil, a plugged oil filter can cause your issue
You can start the engine, but if you hear a noise then shut it off ASAP
After this you are down to oil pump drive and oil pump, which means lifting or pulling the engine to get oil pan off
Was oil pan gasket repaired at any time in the past, people often use RTV sealant on oil pan gaskets, and use TOO MUCH, so when pan is re-tightened little ***** of RTV drop into the pan where they are sucked up into the oil pump's pickup screen and block flow
You can sometimes use a snake camera thru the drain plug to see the pickup screen
If there is ANY noise associated with loss of oil pressure then do NOT run the engine, the noise means this is NOT a gauge/sender issue, its a REAL loss of oil pressure
Couple of things you can do first
Check the oil level, maybe you are low, if so thats the problem, after startup oil is pumped to the top of the engine and it takes awhile to drain back down so oil pan runs out of oil
Change the oil filter, and add a quart of oil, a plugged oil filter can cause your issue
You can start the engine, but if you hear a noise then shut it off ASAP
After this you are down to oil pump drive and oil pump, which means lifting or pulling the engine to get oil pan off
Was oil pan gasket repaired at any time in the past, people often use RTV sealant on oil pan gaskets, and use TOO MUCH, so when pan is re-tightened little ***** of RTV drop into the pan where they are sucked up into the oil pump's pickup screen and block flow
You can sometimes use a snake camera thru the drain plug to see the pickup screen
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