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What does the timing chain rattle sound like?

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  #1  
Old 08-28-2010
abq02ranger's Avatar
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What does the timing chain rattle sound like?

so upon a cold start my trick makes this really strange ticking noise. its almost staggered to a weird cadence so it might be a valve tap or something but after reading up in this forum almost everyone says the have the same sort of noise. now i know the 02s had some timing chain issue but i dont know how severe there are or what they even sound like if i were to pick up on it. little help please!

once the engine is decently warm i can't really hear the tapping anymore and its pretty hard to hear it in the first place over my 44 :). what and where is the timing chain anyway???
 
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Old 08-29-2010
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Sort of like marbles in a can
 
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Old 08-29-2010
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well our trucks have aluminum heads and aluminum ticks as it warms up and expands...doesnt sound like a t-chain problem
 
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Old 08-29-2010
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my my truck is starting to make a weird noise when I start it up as well. It only lasts for like maybe a few seconds and then it goes away.
 
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Old 08-29-2010
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Both 4.0 '03s Ive owned and my dads '02 have made that noise on cold startup for years. I don't think it's hurting anything.
 
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Old 08-29-2010
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sweet thanks guys
 
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Old 08-29-2010
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the tick is normal. most sohc's i have that tick
 
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Old 08-29-2010
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it sounds like this

BRAHHHHGLAHHSEAJLHGRFKSJRGUFSEGRTFGUEYRSDIHATELIFE SOHCBABABAHGRRRA
 
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  #9  
Old 08-29-2010
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Originally Posted by Toreador4x4 View Post
it sounds like this

BRAHHHHGLAHHSEAJLHGRFKSJRGUFSEGRTFGUEYRSDIHATELIFE SOHCBABABAHGRRRA
Well as long as it does not sound like bbrraaa ba ba abs ca ca a c a paaaaaa. it is all good. if you get the noise that I just made then you need a new safety pin for the number 2 piston flange.
 
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Old 08-29-2010
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haha wtf!?
 
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  #11  
Old 10-21-2014
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I have a similar problem, but its getting more and more complicated.. I started it cold one morning and was driving through mud on my farm and had to get unstuck by giving it alot of gas. Well by doing that a horrible noise developed from the front of the motor when it idles. Sounds like the timing chain has slack in it, and its bouncing around. I replaced both the front and rear tensioners and had no luck. I changed the oil and went thicker, still didn't help. Now it only does it when the engine is warmed up. once it gets there its like the flip of a switch the noise is there, this does not affect performance at all though. I took it to get the code read that the CEL threw. it stated that the PCM wasnt storing information or something?? I'm in desperate need of advice!! I can take it apart but I don't want to if I don't need to!!
 
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