Engine Knocking after Oil Change
Thank you.
Now to clarify is that for the DII? LR3? LR4?
My DI owners manual has a whole page with a oil chart stating which oil to use during which temps, everything from 5w-20 upto 20w-60, even straight 30 weight is listed.
The dealer that my truck was always serviced at before I bought it was always 10w-40.
Now to clarify is that for the DII? LR3? LR4?
My DI owners manual has a whole page with a oil chart stating which oil to use during which temps, everything from 5w-20 upto 20w-60, even straight 30 weight is listed.
The dealer that my truck was always serviced at before I bought it was always 10w-40.
Pro Wrench
Joined: May 2010
Posts: 1,918
Likes: 86
From: St Louis MO
When you changed the oil, what did the oil look like that came out? Was it normal looking dark oil that flowed easily, or was it thicker?
As Spike has said, the 15w40 isn't too heavy, and I'm running it also. I'm just really wondering what was in there before.
As Spike has said, the 15w40 isn't too heavy, and I'm running it also. I'm just really wondering what was in there before.
Winching
Joined: Nov 2009
Posts: 595
Likes: 25
From: Philadelphia,Pa
so on a slightly different note, it looked like the low gas light was on in that video. so if you are willing to let your tank get that low which is not good for the fuel pump I have to ask what type of gas are you putting in when you do fill up. have you recently changes the type of gas to save money? running your tank to the point of the light comming on is not the best thing to do. aas for oil. I run rotella 15w-40 with the mobil 301 filter adn I have no issues in fact thte engine is actually a little smoother...
Winching
Joined: Jun 2009
Posts: 692
Likes: 9
That's one of the bug benefits of diesel spec oils like Rotella. They have a stronger detergent package in them and tend to clean things out that make nose at startup/while running after using them for a few changes.
so on a slightly different note, it looked like the low gas light was on in that video. so if you are willing to let your tank get that low which is not good for the fuel pump I have to ask what type of gas are you putting in when you do fill up. have you recently changes the type of gas to save money? running your tank to the point of the light comming on is not the best thing to do. aas for oil. I run rotella 15w-40 with the mobil 301 filter adn I have no issues in fact thte engine is actually a little smoother...
But it wasn't making the noise before I put it in. Maybe it pulled some loose?
I didn't change the oil, I had lightning lube do it because I was afraid I would screw something up, and I couldn't tell which bolt was the drain.
Reach you hand back behind the upper manifold and see if a spark plug wire is loose on the coil pack (arcing against something). You might have to lay on the engine (with a blanket) to get your arm/hand back there to check all the wires, it's a science, you will not be able to see anything, just feel and touch, hehe.
Sounds crazy, but this exact same thing happened to me and that is what it was. Happened exactly like what you are describing (overnight), especially with the faster "clicking" noise on increased RPMs. If you can notice it from the inside with the windows rolled up, like it's ticking against the firewall in the middle, then that's what it is I bet.
The wire can come lose, barely clinging on, so it will still provide enough spark to fire the cylinder (you will not notice any engine performance degrades), but will throw a heck of a clicking noise, sounding like heavy valve/lifter noise at idle. The give away though is the fast clicking (almost electrical) sound on acceleration. Because of where these idiots mounted the coil back, the sound echos all over the place.....
Sounds crazy, but this exact same thing happened to me and that is what it was. Happened exactly like what you are describing (overnight), especially with the faster "clicking" noise on increased RPMs. If you can notice it from the inside with the windows rolled up, like it's ticking against the firewall in the middle, then that's what it is I bet.
The wire can come lose, barely clinging on, so it will still provide enough spark to fire the cylinder (you will not notice any engine performance degrades), but will throw a heck of a clicking noise, sounding like heavy valve/lifter noise at idle. The give away though is the fast clicking (almost electrical) sound on acceleration. Because of where these idiots mounted the coil back, the sound echos all over the place.....
Winching
Joined: Aug 2010
Posts: 655
Likes: 0
From: Charlotte NC
Yeah it does not sound that bad man. Not as bad as I thought it was going to. Sounds to be simple valve or lifter noise. Your probably let loose some sludge or build up on the oil change. It's definitely not knocking. Sounds like a diesel.
Do you know what oil the guy was using beforehand? Normal, synthetic, etc.
Do you know what oil the guy was using beforehand? Normal, synthetic, etc.
Last edited by sloan74; Jun 3, 2011 at 11:14 AM.
Yeah it does not sound that bad man. Not as bad as I thought it was going to. Sounds to be simple valve or lifter noise. Your probably let loose some sludge or build up on the oil change. It's definitely not knocking. Sounds like a diesel.
Do you know what oil the guy was using beforehand? Normal, synthetic, etc.
Do you know what oil the guy was using beforehand? Normal, synthetic, etc.