Clicking sound in 5.7 Mopar 10? - Dodge Challenger Forum: Challenger & SRT8 Forums
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#1 (permalink) Old 01-28-2011, 06:45 PM
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Clicking sound in 5.7 Mopar 10?

Help? My new Mopar 10 Hemi makes a ticking sound like a clock, very audible at idle. I pulled up to the bank and McDonalds drive thru and could hear a distinct regular ticking sound. Like a fast clock. Is something wrong?
It's not an engine 'knock', just a ticking sound.
Please help if you know of this or if this is normal. Thanks in advance..



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#2 (permalink) Old 01-28-2011, 07:55 PM
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I think they lovingly refer to this as the "Hemi tick".
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#3 (permalink) Old 01-28-2011, 09:03 PM
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My new Challenger has it a little... but its more noticeable in the wife's 300c

To me it sounds very similar to my 74 Challenger, which has a set of Rhodes Lifters in it.
Rhodes lifters = the original Variable Timing lifter.
So I haven't worried about it too much...

But I'm sure some of the mechanic's on here will chime in with the a more detailed explanation.

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#4 (permalink) Old 01-29-2011, 08:34 AM
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My R/T had a similar noise when it was new. After I changed to synthetic and put 3500+ miles on her, it's now around the Hemi noise parameters. One thing for sure, your not going to take it in to the dealership and let them tear your motor apart for this! Give it time, you still have plenty of warranty time and if by chance it does go bad, then they would have to fix it right.

Be careful about some technicians at Chyrsler. One told me I didn't let the motor break in because I used synthetic at 1200 miles.
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#5 (permalink) Old 01-29-2011, 11:18 AM
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Originally Posted by dino View Post
My R/T had a similar noise when it was new. After I changed to synthetic and put 3500+ miles on her, it's now around the Hemi noise parameters. One thing for sure, your not going to take it in to the dealership and let them tear your motor apart for this! Give it time, you still have plenty of warranty time and if by chance it does go bad, then they would have to fix it right.

Be careful about some technicians at Chyrsler. One told me I didn't let the motor break in because I used synthetic at 1200 miles.
Thanks for the tips. I'll monitor the situation, change to Mobile 1 at 3000 miles and see how he is.
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#6 (permalink) Old 01-29-2011, 09:16 PM
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Roller lifters in it. And wait until about 6K to go to synthetic. Let the rings seat first.


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#7 (permalink) Old 01-29-2011, 09:50 PM
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mine ticks too have 3k on it runs amsoil 0-20 also have a jeep commander and it has the tick also. mine almost sounds like an exhaust leak but its not.

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#8 (permalink) Old 01-29-2011, 10:20 PM
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Quote:
Originally Posted by MoparTen View Post
Help? My new Mopar 10 Hemi makes a ticking sound like a clock, very audible at idle...
I'm glad to learn this, I was wondering the same thing about my M10 (almost 500 miles now)...
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#9 (permalink) Old 01-30-2011, 11:08 AM
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mine ticks too have 3k on it runs amsoil 0-20 also have a jeep commander and it has the tick also. mine almost sounds like an exhaust leak but its not.
....same here. Sounds like it is coming from the exhaust and not the engine (and that is what I thought it was).
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#10 (permalink) Old 01-31-2011, 03:06 PM
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....same here. Sounds like it is coming from the exhaust and not the engine (and that is what I thought it was).
My 'tick' is definitely coming from the engine, not the exhaust. I pulled out an old trick from way back which some of you will know.
Cut a broom stick off, place one end on your ear and the other on various parts of the engine (when it running but not near moving parts). I could hear mine in the valve train (heads). I don't have a clue what causes this but with as many of you that have heard it, it must be common. I've got 1200 miles on mine and I think it's quitter but I'll see. I'll check when I go to the bank drive thru or McDonalds this week. Meanwhile, I'll save my old broom stick and get a vacuum cleaner for the kitchen...
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