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Old 01-16-2009
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Ticking noise?

I've noticed lately that when I'm sitting at a light idling, i can hear a ticking noise. It does it all the time, and it speeds up with the RPM. I haven't gotten to look at it with a stethescope but I was wondering if you guys had any ideas.
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Old 01-16-2009
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Actually it doesn't do it when it's cold. At least it isn't right now
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Old 01-16-2009
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Just throwing it out, but can be a slight exhaust leak thats expanding with heat.
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Old 01-16-2009
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Valvetrain, possibly a lifter knocking.
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Old 01-16-2009
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You check your oil level lately?
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Old 01-16-2009
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Possibly the distributor is off-time, or on it's way out, are you getting worse/bad mpg? Seem like it has less power? Does it shake or wobble a bit when it's running? Otherwise, lifter knocking, worn valve guides, bent valve, maybe a valve spring, the serpentine belt could be frayed and the loose strand smacking against something, maybe a bearing in one of the pullies is going bad.
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Old 01-16-2009
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Quote:
Originally Posted by b3kbruiser View Post
Possibly the distributor is off-time, or on it's way out, are you getting worse/bad mpg? Seem like it has less power? Does it shake or wobble a bit when it's running? Otherwise, lifter knocking, worn valve guides, bent valve, maybe a valve spring, the serpentine belt could be frayed and the loose strand smacking against something, maybe a bearing in one of the pullies is going bad.
Doesn't have a distributor. Power is fine. Pretty quick for a 3.0 if I may say so myself. Belt is brand new.
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Old 01-17-2009
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BOMB>
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Old 01-17-2009
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I had a ticking noise a while ago...popped my hood and saw an off and on electrical arc going between one of my spark plug wires and the engine block. Replaced bad wire, ticking gone.
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Old 01-17-2009
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New plugs, coil, and wires less than 1000 miles ago.
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Old 01-17-2009
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how many miles are on your truck and have you ever had the timing chain and water pump replaced?
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Old 01-18-2009
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Sounds like you've changed and replaced the obvious. Problem would lie within the engine then.
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Old 01-18-2009
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Sounds like Lifters. I have the same thing for my 4.0l. Seafoam it and see what happens, the ticking could be a carbon buildup on the valves also.
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Old 01-18-2009
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Seafoamed a while ago but didn't put it in the oil.
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