Anybody ever check their upper intake bolts?

[madtrucker2016]

Hey Tidfan Funny just the other day I was standing outside my truck with motor running having a puffer,and I noticed my engine idle surging a little up and down. Said to self that never happened before. Thanks for the tip gotta check them bolts now

 

[U&A]

Deleted
Sent while firmly grasping my redline lubed RAM [emoji231]

 

[tidefan1967]

It definitely helped smooth out the idle on my Challenger(32K miles) but didn't have any effect on my RAM at all (30K miles)so I wouldn't expect miracles but I was totally amazed at how loose some of the bolts were. I did run a supersized bottle of the Gumout Regane complete fuel system cleaner through first but it didn't seem to make much of a difference, guess I should have just waited on the SI-1 because I know it works.

 

[Doodoo972]

Thanks Tidefan, great post ! I checked mine and they were all loose.

 

[Coramie]

I’m not too mechanically inclined. Is there a video or picture showing where these bolts are located?

 

[DeckArtist]

Great info! Will check mine this weekend.

 

[madtrucker2016]

Do you think FCA is concerned about this common problem ,seems everyone so far has checked it ,turned out the bolts are loose.To me I think it should be a recall to check it out ,or a safety check by dealer when going for oil change.

 

[lowufo]

Gonna have to check my Challenger and Ram as well

 

[Hemi395]

Question, who had loose bolts on here that hasn't had their intake off? Mine has been off before so I'm blaming the dealer tech. Just curious if these are loosening up when they're factory installed...

 

[chrisbh17]

Not sure this makes sense to me, unless a new manifold automatically comes with new bolts:

"NOTE:
If reinstalling the original manifold apply Mopar(R) Lock & Seal Adhesive to the intake manifold bolts. Not required when installing a new manifold."

Factory torque spec is 9 ft lbs. And there is an order:

 

[ajs3]

Question, who had loose bolts on here that hasn't had their intake off? Mine has been off before so I'm blaming the dealer tech. Just curious if these are loosening up when they're factory installed...

My intake has never been off. 2014 with 51,000 miles. I found them loose after an oil change at about 20 or 22,000 miles. Saw a little oil staining from the passenger side valve cover. All the bolts on both covers were loose. So I tightened them up and for ***** and giggles I checked the intake......all loose.

Sent from my XT1650 using Tapatalk

 

[ajs3]

Not sure this makes sense to me, unless a new manifold automatically comes with new bolts:

"NOTE:
If reinstalling the original manifold apply Mopar(R) Lock & Seal Adhesive to the intake manifold bolts. Not required when installing a new manifold."

Factory torque spec is 9 ft lbs. And there is an order:

View attachment 194419

Hey....same picture I use.....[emoji106]

Sent from my XT1650 using Tapatalk

 

[Lyle Longboat]

I have a 2011 with 210k Kms. I’ll have to check this out as now I’m curious. Thanks for the info.

 

[Wild one]

For ***** and giggles I figured i'd check both the wifes 2016 Challenger and my truck,looks like i'm one of the lucky ones,neither had any loose.Didn't expect the truck to have any loose as the intake was off last spring and at that time I replaced the seals,but the car had me curious,but it's good.

 

[Hemi395]

Drove my truck for the first time since I tightened the bolts, it idles noticeably smoother now. Other than that it drives the same and the MAP values are the same as before so if it was causing a vacuum leak it must have been small and only affecting idle.

Definitely will be checking these periodically from now on.

 

[yoda]

Not sure this makes sense to me, unless a new manifold automatically comes with new bolts:

"NOTE:
If reinstalling the original manifold apply Mopar(R) Lock & Seal Adhesive to the intake manifold bolts. Not required when installing a new manifold."

Factory torque spec is 9 ft lbs. And there is an order:

View attachment 194419

New manifold comes with new bolts with Loctite already on them

 

[Burla]

doing my yearly coolant change tomorrow, will check

 

[Marczing]

Apparently the composite upper intake on the 5.7/6.4 Hemi's has a problem with the intake bolts loosening up over time. After noticing that the idle on my newly acquired 2016 Challenger is not as smooth as that of my 2017 RAM I started wondering about what the difference could be. I checked the intake manifold bolts on the Challenger and they were no tighter than 40 in/lbs tops against a 105 in/lb spec. It did improve the idle somewhat by the way. I decided to check the truck yesterday just for the hell of it and they were even looser than those on the Challenger. Anyway i was just curious if anyone else had ever read anything else about this or had a similar issue.

I just did this the other day. I had to re torque all of them.

 

[madtrucker2016]

Hope RAM FCA is reading all of this

 

[VB712]

Checked mine even though my motor has been apart before. To my surprise, all 10 bolts were loose. Tightened them up and moved on