Engine tapping...?
#1
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Engine tapping...?
Whenever I start my parent'* 96 SE (home for break), for maybe the first 30 seconds I hear this rattling, kind of tapping noise from the engine. I'm REALLY sorry I can't be more specific, but I don't know how else to describe it! Just, uh, tapping. It'* very strange, AND the check engine light has been on for the past few days, so I'm figuring something'* going to go wrong really soon...
#3
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Next time you hear it, pop the hood and feel the evap purge solonoid bolted to a bracket on your front valve cover. You'll need the engine cover off in advance.
In cold weather the evap purge is much more obvious, and we get countless reports of mysterious ticking. It'* normal for it to go through a purge cycle on startup.
Make sure that'* the sound (you'll feel it), or see if it'* actually something else.
In cold weather the evap purge is much more obvious, and we get countless reports of mysterious ticking. It'* normal for it to go through a purge cycle on startup.
Make sure that'* the sound (you'll feel it), or see if it'* actually something else.
#5
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Does the tapping kinda go along with the speed of the engine? If so, it might just be a lifter that takes a few seconds to pump up with oil before it operates quietly. That would be pretty common and nothing to worry about at all. Still, check your oil to make sure the level is up. Low oil level can cause all kinds of valve train noises.
#6
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I'd inspect the harmonic balancer (crankshaft pulley). See if the rubber on its face is in good shape. When they go bad, the rubber may look torn up and cause a noise. This one tends to happen at idle but go away with RPM
#8
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Originally Posted by F14CRAZY
I'd inspect the harmonic balancer (crankshaft pulley). See if the rubber on its face is in good shape. When they go bad, the rubber may look torn up and cause a noise. This one tends to happen at idle but go away with RPM
#9
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Originally Posted by willwren
Originally Posted by F14CRAZY
I'd inspect the harmonic balancer (crankshaft pulley). See if the rubber on its face is in good shape. When they go bad, the rubber may look torn up and cause a noise. This one tends to happen at idle but go away with RPM
#10
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I agree a HB is more or a "clatter" than a "tap" but we cannot hear this engine over a message board (no sound or vid clip ), and the fact that people describe sounds differently than others. Just a possibility I wanted to put out there.