Ticking Noise
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Ticking Noise
2003, 4.6l engine just recently acquired a ticking noise, coming from the passenger side. Thinking it was lifter, I replaced all of them, but the back 2. I'll have to figure this out. Before I buttoned everything up, I ran the engine and the noise was still there. The noise sounds like a tick and when you shut the engine off, the noise sounds like a rattle coming to a halt.
Thought is might be a idler, so I removed the serpentine belt. Noise still there. I'm not sure, but I think it is coming from the passenger side, close to the firewall, and behind the intake manifold.
Can anyone give me any ideas? Would be greatly appreciated.
Thought is might be a idler, so I removed the serpentine belt. Noise still there. I'm not sure, but I think it is coming from the passenger side, close to the firewall, and behind the intake manifold.
Can anyone give me any ideas? Would be greatly appreciated.
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I'll check plugs. Could be possible. Valve cover is currently removed. Not hooked up. At this point I have to eliminate everything.
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I just had the same problem. It might be the air conditioner compressor clutch. You can check it by turning the switch to defrost, and listening for the ticking to start and stop. If it on ticks wile the compressor isn't turning then replace the clutch.
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Thank you. In my first post, I posted that I removed the serpentine belt. A/C clutch will not turn without the belt.
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If it is an exhaust manifold gasket, would you hear a rattle noise when you shut the engine off?
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Look for broken or missing studs as well. I had to have the manifold replaced because it was warped.
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When I probe with my Stethoscope, the loudest and most prevalent sound is coming from the catalytic convert inlet pipe just down stream from the exhaust manifold. Right under the O2 sensor. Older vehicles had a "donut". Are all connections now just a cast round with a flared pipe?
Check out the video and help me distinguish where the noise is coming from.
https://www.dropbox.com/s/s68a8b8tsh...91546.mp4?dl=0
Check out the video and help me distinguish where the noise is coming from.
https://www.dropbox.com/s/s68a8b8tsh...91546.mp4?dl=0
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I replaced the lifters on that side (passenger) of the engine thinking it was a lifter noise. Wasn't. While I was there, I removed the spark plugs and re-installed them. Not the spark plugs. Rattle may be catalytic converter.
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I taped my shop vac hose to the exhaust pipe and ran the shop vac on exhaust. Took a spray bottle with soap in it and sure enough, bubbles coming out of the #1 port and connection of the exhaust manifold and catalytic converter.
Just thought I'd let everyone know to do this first when looking for noise.
Just thought I'd let everyone know to do this first when looking for noise.
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I also check the opposite side while I was doing it.