3.8 engine tick
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JK Newbie
Joined: Jun 2015
Posts: 4
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From: New Mexico
3.8 engine tick
It's been making this ticking noise for a couple months and I cannot figure out what it is. I've checked both exhaust manifolds and neither one appear to be cracked so I'm hoping someone else has some input.
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Super Moderator
Joined: Mar 2008
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From: HB, So Cal
I'm subscribed to this thread. I'm interested to see what the fix is for this. What were the things you checked first? Mine does the same. Seems to be intermittent for me. 08 auto 150k. Thanks.
JK Jedi
Joined: Apr 2010
Posts: 4,468
Likes: 221
From: SE Michigan
Sounds like lifters to me. You may want to pull off the valve covers and check the torque on the lifter bolts. A thicker oil may make the noise go away, but that doesn't fix the problem if you have a loose lifter.
JK Newbie
Joined: Apr 2016
Posts: 14
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From: Harlingen, TX