Check your intake manifold bolts

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Wild one

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This hasn't been talked about for awhile,but check your intake manifold bolts.They call for 108 in-lbs or roughly 9 ft-lbs of torque,and they should be checked at least yearly,as they do loosen up. I've been doing mine at least twice a year on all 3 of of my hemi equipped vehicles.They should be checked and torqued when the engine is cold.I just use my calibrated hand and a 1/4" drive rachet / 6" extension and 5/16's socket and just give them a twist by hand,but if you don't trust your hand,an inch lb torque wrench should be used.There's 10 of them on 5.7's and 6.4's. I've done them enough,i know the torque sequence ,but if you don't know the sequence it's easy enough to look up
 

mikeru

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That's not something I've heard about, and a google search brings up zero results for retorquing Hemi intake manifold bolts. Since the Hemi is mostly unchanged from 4th gens to 5th gens I figure there would be something out there about it. Care to share any information about this issue?
 
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Wild one

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That's not something I've heard about, and a google search brings up zero results for retorquing Hemi intake manifold bolts. Since the Hemi is mostly unchanged from 4th gens to 5th gens I figure there would be something out there about it. Care to share any information about this issue?
Heat expands the composite intake,then it shrinks when it cools off,eventually the bolts loosen up.Do a search on here,you'll find the odd thread/post about the issue.If you don't believe me,go out and check yours.If your truck is a couple years old and has gone through a few heat cycles,good chance the bolts will need retorquing. Not gonna argue about it,just giving the guys that don't know about the issue a heads up.It's up to you to check them or not if you want,but you've been given a heads up about the issue. One of the reasons i hate the stupid engine cover FCA used to put on the 5.7's,i think it compounds the issue,plus you have to remove it to get at the bolts.The bolts are in behind the injector fuel rail if you decide to check yours,but are easy to get at with a 1/4" drive extension and 5/16's socket,a 3/8's drive socket and extension can be used,but is a bit harder to get on the bolts
 
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Wild one

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That's not something I've heard about, and a google search brings up zero results for retorquing Hemi intake manifold bolts. Since the Hemi is mostly unchanged from 4th gens to 5th gens I figure there would be something out there about it. Care to share any information about this issue?
 

Clayvis

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Thanks for the tip I'm doing plugs soon, and will check my intake manifold bolts when I do. Mine's a 2018 and never been checked I bet. Could this be the source of the infamous "hemi tick?"
 
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Wild one

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Thanks for the tip I'm doing plugs soon, and will check my intake manifold bolts when I do. Mine's a 2018 and never been checked I bet. Could this be the source of the infamous "hemi tick?"
Generally the hemi tick i think you're thinking of,is the exhaust manifolds,where most times the rear bolts are broken.You can check those by grabbing the rear of the heat shields and giving them a tug,if the heat shields move,usually the rear bolts are broken
 

RedSRT4Me

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Thanks for the tip I'm doing plugs soon, and will check my intake manifold bolts when I do. Mine's a 2018 and never been checked I bet. Could this be the source of the infamous "hemi tick?"

Save yourself the time and headache and keep the stock plugs. I changed mine at 95,000. They looked brand new still. Wish I saved the money. Iridium plugs last way past 100,000 miles.
 
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