Knocking/pinging
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Knocking/pinging
changed the oil (Valvoline) and filter (motorcraft) on my '96 2.3l yesterday and now it sounds like an old Jetta, even at idle. Oil is up to the proper level. I mistakenly bought 10w-30 instead of 5w-30. Didn't realize until I broke the seal and decided to use it anyway. Could this cause the knocking or should I be looking for something else? 100 miles since the change and the knock is still present.
Don't think its the gas as I was half way thru a tank and had not noticed any knock prior to the oil change.
'96 2.3l
191K
PCV replaced 8/09
Fuel Filter replaced 8/09
Plugs/wires are due for a change
Don't think its the gas as I was half way thru a tank and had not noticed any knock prior to the oil change.
'96 2.3l
191K
PCV replaced 8/09
Fuel Filter replaced 8/09
Plugs/wires are due for a change
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Joined: Jan 2004
Posts: 13,851
Likes: 111
From: SW Va
Well seeing as how your in Va & the weather here isn't cold enough to make a difference between 5w-30 & 10W-30 on a cold start, I'd rule that out.
Seeing as how you've not had this noise before & you've driven it 100 miles & it's still noisey, maybe you have a defective oil filter????
Or maybe you didn't prefill the oil filter before intallation, or disable the fuel pump to crank the engine to prime the oil pump, fill the oil filter & burp the oiling system before starting it up after the change & on the restart it's trapped an air bubble in a dead end oil gallery somewhere, thats acting like an air spring, to drop oil pressure in the system!!!???? But you'd think in 100 miles of driving it would have worked it's way out by now.
Three dollars & change for a new filter at WallyWorld & you could find out if it's that.
If you drain the old filter, to prefill the new one, you wouldn't likely have to buy another qt of oil either.
More thoughts to ponder, let us know what you find.
Seeing as how you've not had this noise before & you've driven it 100 miles & it's still noisey, maybe you have a defective oil filter????
Or maybe you didn't prefill the oil filter before intallation, or disable the fuel pump to crank the engine to prime the oil pump, fill the oil filter & burp the oiling system before starting it up after the change & on the restart it's trapped an air bubble in a dead end oil gallery somewhere, thats acting like an air spring, to drop oil pressure in the system!!!???? But you'd think in 100 miles of driving it would have worked it's way out by now.
Three dollars & change for a new filter at WallyWorld & you could find out if it's that.
If you drain the old filter, to prefill the new one, you wouldn't likely have to buy another qt of oil either.
More thoughts to ponder, let us know what you find.
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its a horizontal mount so I don't think pre-fill would work.
I did push/held the accelerator to the floor before cranking the motor. Doesn't start it that way but turns it. Would that be the same as priming it?
Its a faint knock and I can't hear it under heavy acceleration or going uphill.
I did push/held the accelerator to the floor before cranking the motor. Doesn't start it that way but turns it. Would that be the same as priming it?
Its a faint knock and I can't hear it under heavy acceleration or going uphill.
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Posts: 13,851
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From: SW Va
No, don't mash the accelerator, you don't want fuel in the combustion chambers.
On your horiz mounted oil filter, that you can't prefill before installation, you should disable the fuel pump before cranking the engine, after an oil change.
That way the fuel pump won't run & have the fuel injectors wash the cyl walls down, while you crank the engine to prime the oil pump & have it fill the oil filter & burp the oiling system of that 1qt air bubble, that just moved out of the FL-1A oil filter.
So you do this disable the fuel pump, crank the engine to fill the new filter & burp the oiling system Before you start & run the engine.
Don't crank the engine more than 15 seconds at a time, so you don't over heat the starter motor.
On your horiz mounted oil filter, that you can't prefill before installation, you should disable the fuel pump before cranking the engine, after an oil change.
That way the fuel pump won't run & have the fuel injectors wash the cyl walls down, while you crank the engine to prime the oil pump & have it fill the oil filter & burp the oiling system of that 1qt air bubble, that just moved out of the FL-1A oil filter.
So you do this disable the fuel pump, crank the engine to fill the new filter & burp the oiling system Before you start & run the engine.
Don't crank the engine more than 15 seconds at a time, so you don't over heat the starter motor.
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Moderator
Joined: Jan 2004
Posts: 13,851
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From: SW Va
If changing the oil flter doesn't fix it, maybe listen to the engine with a stethoscope & try to determine where the noise is coming from.
If you don't have a mechanics stethoscope, rig one with a long broom handle, screwdriver, or piece of hose. one end to your ear, the other touching the suspect area.
If you don't have a mechanics stethoscope, rig one with a long broom handle, screwdriver, or piece of hose. one end to your ear, the other touching the suspect area.
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