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Old 03-25-2004, 12:53 PM
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Default Ticking

Have a "ticking" noise coming from my exhaust (i think). I only notice it while sitting at a red light...under normal driving its once every 3-5 seconds or so. After running it hotter, its quicker (every second or so). It almost sounds like oil dripping into the oil pan, but is louder. Anybody else experienced this? I've been told its the cats heating up and cooling off. I hope its normal.
Old 03-25-2004, 02:15 PM
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anyone?
Old 03-25-2004, 02:52 PM
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It is probably that wonderful LS1 knock that we all talk about!...Could also be a lifter.. Are you burning oil at all? What does it sound like in park?
Old 03-25-2004, 04:12 PM
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Sounds like an exhaust leak or a bent push rod..........Im leaning more towards exhaust leak.
Old 03-25-2004, 09:48 PM
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It sounds like its something cooling off....cause after a full driving cycle, even after i shut the car off, i hear it. frequency slows until it stops. sounds like coming from underneath the car. don't think its a bent pushrod or exhaust leak. wouldnt they both cease at shutoff?
Old 03-25-2004, 10:02 PM
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Originally Posted by kjmdrumz3
It sounds like its something cooling off....cause after a full driving cycle, even after i shut the car off, i hear it. frequency slows until it stops. sounds like coming from underneath the car. don't think its a bent pushrod or exhaust leak. wouldnt they both cease at shutoff?
Yes, if it continues after the motor is not running, there is NO WAY it's an exhaust leak or bent P-rod.

Sounds like exhaust cooling. My headers tick for a little while after I shut my motor down....
Old 03-25-2004, 11:16 PM
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AIR check valves? i got a ticking with my header install. put some restrictor plates and fixed teh problem. I have heard of them burning up even with a stock motor...they are 6-8 bucks from advance auto parts might be worth a try.
T
Old 03-26-2004, 01:47 AM
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6 to 8 bucks is well worth the insurance......thanks guys. this site has been nothing but helpful to me. after i gain my wealth of knowledge from this site, i will pass it on thanks again
Old 03-26-2004, 06:58 AM
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New AIR check valves are NOT going to help you if the noise you're hearing is after you shut the motor down.
Old 03-26-2004, 11:17 AM
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ahh my apologies dude, i didnt read the part about the ticking after you shut down. that just sounds more like a cool down to me.
Old 03-27-2004, 03:19 AM
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Originally Posted by slik98z
ahh my apologies dude, i didnt read the part about the ticking after you shut down. that just sounds more like a cool down to me.
thats what i was hoping. today i noticed a differrent ticking sound when it was running, but sounded like it was coming from underneath the car. loose hanger?




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