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Old 03-19-2012, 09:14 AM   #1
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Ticking when its cold and no ticking when its warm?

So, I get in the jeep this morning. I start it up and start to go and she starts to tick when I press on the gas. It doesn't make a ticking noise when its idling and going 5MPH, it doesnt tick when I have it in neutral and press on the gas, and the ticking goes away after its semi warm.

There is only ticking when I press on the gas in the beginning revs. It goes away if im coasting and it goes away when the jeep is warm.

Work is 5 mins away from my house, and by the time I get there the ticking is gone.

Anyone have any suggestions?

No grease @ the driveshafts.

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Old 03-19-2012, 10:18 AM   #2
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So, I get in the jeep this morning. I start it up and start to go and she starts to tick when I press on the gas. It doesn't make a ticking noise when its idling and going 5MPH, it doesnt tick when I have it in neutral and press on the gas, and the ticking goes away after its semi warm.
First thing; check your oil. I've seen vehicles do this with low oil.

I've had vehicles that "ticked" when cold. I thought (without confirmation, I might add) that after I drove it the last time and the engine cooled, oil was draining away from the lifters, rockers, and push rods and down into the crankcase. When I would start it the next day, I thought the "tick" was due to inadequate oil in the heads, causing lifters/rockers to "tick". After it warmed up, and/or oil got adequately circulated "up top", the tick would go away.

Just an idea (I'm no mechanic by any means).

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Old 03-19-2012, 10:27 AM   #3
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First thing; check your oil. I've seen vehicles do this with low oil.

I've had vehicles that "ticked" when cold. I thought (without confirmation, I might add) that after I drove it the last time and the engine cooled, oil was draining away from the lifters, rockers, and push rods and down into the crankcase. When I would start it the next day, I thought the "tick" was due to inadequate oil in the heads, causing lifters/rockers to "tick". After it warmed up, and/or oil got adequately circulated "up top", the tick would go away.

Just an idea (I'm no mechanic by any means).

Oil is good (I just checked). I just changed my oil as well to a lighter weight. A few weeks ago...

Thanks for the suggestion.
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Old 03-19-2012, 10:32 AM   #4
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Did the ticking start when you changed your oil weight? If so, my scenario would make even more sense, since the lighter oil could drain quicker and more completely from the heads.
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Old 03-19-2012, 10:43 AM   #5
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Oil is good (I just checked). I just changed my oil as well to a lighter weight. A few weeks ago...

Thanks for the suggestion.
JMO, if you live where it's warm, lighter oil is not what you want.
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Old 03-19-2012, 10:44 AM   #6
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I didn't notice it right or soon after. It's more noticeable now since it's been a few weeks.

I was thinking that I may have an exhaust leak, or the ever so common cracked manifold issue.
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Old 03-19-2012, 10:52 AM   #7
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Oil is good (I just checked). I just changed my oil as well to a lighter weight. A few weeks ago...

Thanks for the suggestion.
this is your problem, use the recomended oil on the filler cap
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Old 03-19-2012, 10:57 AM   #8
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Oil filter with working anti drain back valve?
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Old 03-19-2012, 11:01 AM   #9
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JMO, if you live where it's warm, lighter oil is not what you want.

Yeah. I live near the coast in California where the hottest it gets during the peak summertime is about 85ish
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Old 03-19-2012, 11:07 AM   #10
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Oil filter with working anti drain back valve?
I didn't know such a thing existed! Like I said above, I'm certainly limited in my mechanical knowledge. I Googled anti drain back valves; interesting.
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Old 03-19-2012, 12:51 PM   #11
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Oil filter with working anti drain back valve?

whats this mean?
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Old 03-19-2012, 02:03 PM   #12
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whats this mean?
Holds the oil in the filer rather than draining back into the pan. Oil gets to the top quicker.
I think most have them but some use better materials.
I only use WIX (napa gold)
sure OEM Mopar is good also ?
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Old 03-19-2012, 03:13 PM   #13
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I haven't changed my oil yet, but I'm not sure the 3.6L's filter cartridge has an antidrain back valve like a canned filter does.
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Old 03-19-2012, 04:10 PM   #14
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Fuel injectors make a ticking sound. Are you sure it's not that. Start it up, open the hood and check if it might be the injectors. Some you can hear more than others. The 12's might not have an anti drain back valve due to the configuration of the filter element.

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