Bugout 1 Posted October 28, 2023 Share Posted October 28, 2023 After I cut the engine off there is a ticking noise. Kinda sounds like the fuel injectors or like when really hot metal is cooling but it happens when the engine is hot or cold. Link to comment Share on other sites More sharing options...
OldSch88L Posted October 28, 2023 Share Posted October 28, 2023 I bet that's the idle stepper motor expanding to prepare for the next startup, which is normal. Link to comment Share on other sites More sharing options...
cruiser54 Posted October 29, 2023 Share Posted October 29, 2023 It's hot metal cooling and is perfectly normal. Link to comment Share on other sites More sharing options...
Pete M Posted October 29, 2023 Share Posted October 29, 2023 my 4.0 has been doing that since I got it in 97. it's weird sounding, but normal. Link to comment Share on other sites More sharing options...
Bugout 1 Posted November 6, 2023 Author Share Posted November 6, 2023 I figured it was but it's kinda loud and my 06 LJ doesn't do it. Link to comment Share on other sites More sharing options...
ghetdjc320 Posted November 7, 2023 Share Posted November 7, 2023 I’ve always heard it coming from the lifters in the middle 4.0 as they bleed out and settle after running. But every 4.0 I’ve ever had makes that sound Link to comment Share on other sites More sharing options...
Drahcir495 Posted November 8, 2023 Share Posted November 8, 2023 all of mine make that sound - your good. Link to comment Share on other sites More sharing options...
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