Bad Engine Knock - Need Ideas - Video included
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Bad Engine Knock - Need Ideas - Video included
So... I think the 3.0 is toast. Took it to a local shop with a great reputation here. Guy will look at any car and give his opinion no charge.
Anyway, he thought it was something in the passenger side. Valves, pistons, etc... something over there. He told me it would cost more to fix, then to just get a replacement engine at least here in the Twin Cities.
I brought it home and I'm now trying to weigh my options. Anyone ever hear anything like this? Is it worth trying to dissect this baby to fix?
I should state it has 90k on the clock. I just changed the plugs and oil in an effort to make the knock go away but it definitely didn't help.
Anyway, he thought it was something in the passenger side. Valves, pistons, etc... something over there. He told me it would cost more to fix, then to just get a replacement engine at least here in the Twin Cities.
I brought it home and I'm now trying to weigh my options. Anyone ever hear anything like this? Is it worth trying to dissect this baby to fix?
I should state it has 90k on the clock. I just changed the plugs and oil in an effort to make the knock go away but it definitely didn't help.
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#3
The knock might be internal engine noise, however, consider that driven accessories (e.g. water pump) might be at fault. I owned (years ago) a Triumph TR3A that had a frightening knock. I took the pan off and while looking at rods, pistons, etc. turned the crankshaft and found that the water pump pulley was rocking on its shaft. An easy and cheap fix!
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you can access the valve cover without taking apart the intake manifold. id take a look at the valve train first. pull the coil pack off and hold the coolant hoses to the side and then you can access the valve cover.
is this a manual? does sound change with rpm's?
is this a manual? does sound change with rpm's?
Last edited by Kris03; 09-19-2012 at 02:45 PM.
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That'd be awesome. When I can get sometime I'll rip it apart and see what I can find.
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Not that I can hear. Seems to be mostly right from the passenger side of the engine. Here's the video with my wife revving it a little bit. Audio got kind of jacked at the beginning, but it's better at the end.
Probably won't update this thread for awhile as I won't have time to tear into for a week or so, but I'll let you know guys know what I can find.
Probably won't update this thread for awhile as I won't have time to tear into for a week or so, but I'll let you know guys know what I can find.
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I'd technically agree with you, but I'm in the middle of a bathroom remodel and the wife wants that done before anything else gets touched. And since I have a loaner vehicle from my old man it's not a priority right now.
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Ok. So I pulled the valve cover off last night. Nothing seems loose or bad, but I really don't know what to look for in this. Here's another video with the valve cover off. Probably won't help, but what the hell.
Also, just to clarify, if I want to manually crank over the engine to make sure valves are opening and closing properly at the right time, I'm assuming I use this bolt on the fan right?
So what should I do from here? I can't really tell which one the noise is coming from? Only thing I noticed while running it was that oil starting seaping out into the rocker arms. Is that bad? I'd assume not, but I have no idea.
Again, appreciate any help.
Also, just to clarify, if I want to manually crank over the engine to make sure valves are opening and closing properly at the right time, I'm assuming I use this bolt on the fan right?
So what should I do from here? I can't really tell which one the noise is coming from? Only thing I noticed while running it was that oil starting seaping out into the rocker arms. Is that bad? I'd assume not, but I have no idea.
Again, appreciate any help.
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After doing a bit more research, it seems the oil thing is normal. And after re-watching the video, all but one of the rockers is getting oil. I'm beginning to wonder if that's the problem, that the oil pressure is bad on the one that isn't getting oil, either because of seals or a bad lifter, etc. Not sure how to deal with it more, but I'll keep you guys posted as I figure out more.
And as always feel free to give input.
And as always feel free to give input.
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Ran SeaFoam through it about 4 weeks ago (when I changed the oil and the plugs). It definitely created some smoke when I did it so I know it was burning stuff off, but it unfortunately didn't really help.
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