3.6L Engine noise with 15 miles.

SecondTJ

Well-Known Member
Joined
Jan 9, 2019
Messages
1,164
Reaction score
1,067
Location
Il
Vehicle(s)
Jeep
They said “A Rocker Arm”
Sounds legit.

The lifters and rockers have been simply a design flaw in the 3.6 Pentastar engine from the get go.

FCA tried damage control saying it was limited to “some” 2011-13 motors, but they’ve been an issue ever since even showing up on the Gen2 version.

I’d get it fixed and raise hell to get them to include a free extended warranty on the Jeep. Definitely push for the MaxCare coverage.
Advertisement

 

Wanted33

Well-Known Member
First Name
Jim
Joined
Aug 2, 2018
Messages
449
Reaction score
576
Location
Down south in Dixie
Vehicle(s)
2019 Sting-Gray Sahara
Vehicle Showcase
1
Yeah....if it were mine James I would let the dealer order the parts, and repair the rocker. In my old burned out mind I would be scared that the reason it stops is because it just wore into it's own little groove. Can't have that. Good luck
 

LincolnSixAlpha

Well-Known Member
First Name
Brian
Joined
Oct 26, 2018
Messages
351
Reaction score
272
Location
Arizona
Vehicle(s)
2018 Jeep Wrangler Unlimited Rubicon
Vehicle Showcase
1
"A rocker arm"? No way, there's no rocker arms or pushrods in this engine! However, there are cam followers as this engine has overhead cams, not a cam living in the valley that depress the valves.


Is it possible that it's just the fuel injector clattering?
 

ekone

Member
First Name
Mike
Joined
Jun 11, 2019
Messages
22
Reaction score
29
Location
Raleigh
Vehicle(s)
2019 JLU, bone Stock sport
My tj has been reincarnated! Agree with taking it to the dealer and having them do a) fix it.
 

Kidder212

Well-Known Member
First Name
Tom
Joined
Apr 13, 2019
Messages
195
Reaction score
215
Location
Tennessee
Vehicle(s)
2018 JLUR 2.0L turbo
That makes sense. I do know there is a TSB about these not seated properly or something to this effect. If it is driven it may do cam damage. (Maybe too late)
 
OP
OP

James Cole

Well-Known Member
Joined
Jun 29, 2019
Messages
163
Reaction score
53
Location
NY
Vehicle(s)
JL
Thanks for all the responses... will take it for a second opinion from a friend mechanic today and see whats up...

For those who have seen this issue, is the noise intermittent?

Thanks!
JC
 

Grimace-912

Active Member
First Name
RT
Joined
Apr 12, 2019
Messages
35
Reaction score
28
Location
Northern Arizona
Vehicle(s)
2018 Jeep Wrangler JL Unlimited Rubicon and 9 other bikes, trucks, cars :)
Occupation
Retired
Vehicle Showcase
1
I've heard a sound like this - it was a sticky injector, It was not intermittent but was replaced under warranty - new engine though?? Hmmm
 
OP
OP

James Cole

Well-Known Member
Joined
Jun 29, 2019
Messages
163
Reaction score
53
Location
NY
Vehicle(s)
JL
I've heard a sound like this - it was a sticky injector, It was not intermittent but was replaced under warranty - new engine though?? Hmmm
Well the dealer mechanic just heard it but no diagnosis was made...

I suppose it could be an injector too and that would explain the intermittent noise... Was your noise exactly the same?



JC
 

Pic18

Well-Known Member
Joined
Jan 19, 2018
Messages
698
Reaction score
1,067
Location
RI
Vehicle(s)
2018 Mojito JLUR, 2017 Grand Cherokee Trailhawk (my wife’s)
My sister had a similar sound in her new Durango. Same motor. They diagnosed it and said there was a problem with the rockers. They had to fix all of them, but the sound went away and it runs great now. Just have the dealer fix it ASAP.
 

smores

Active Member
First Name
Sammy
Joined
Jan 6, 2019
Messages
28
Reaction score
24
Location
Oceanside
Vehicle(s)
JL Rubicon
Sounds legit.

The lifters and rockers have been simply a design flaw in the 3.6 Pentastar engine from the get go.

FCA tried damage control saying it was limited to “some” 2011-13 motors, but they’ve been an issue ever since even showing up on the Gen2 version.

I’d get it fixed and raise hell to get them to include a free extended warranty on the Jeep. Definitely push for the MaxCare coverage.
Free extended warranty for something the factory warranty will cover? What?
 

Grimace-912

Active Member
First Name
RT
Joined
Apr 12, 2019
Messages
35
Reaction score
28
Location
Northern Arizona
Vehicle(s)
2018 Jeep Wrangler JL Unlimited Rubicon and 9 other bikes, trucks, cars :)
Occupation
Retired
Vehicle Showcase
1
Well the dealer mechanic just heard it but no diagnosis was made...

I suppose it could be an injector too and that would explain the intermittent noise... Was your noise exactly the same?

JC
Yup - same noise but not intermittent - it happened all the time once it started till the injector was replaced.
 

smores

Active Member
First Name
Sammy
Joined
Jan 6, 2019
Messages
28
Reaction score
24
Location
Oceanside
Vehicle(s)
JL Rubicon
Absolutely.
I don’t think you understand how a dealership works. The finance dept is not going to eat into the available gross of a deal JUST because the customer is upset. The car has a warranty. It’s now the service depts problem. Dealers don’t need to bend over for no reason.
 

SecondTJ

Well-Known Member
Joined
Jan 9, 2019
Messages
1,164
Reaction score
1,067
Location
Il
Vehicle(s)
Jeep
I don’t think you understand how a dealership works. The finance dept is not going to eat into the available gross of a deal JUST because the customer is upset. The car has a warranty. It’s now the service depts problem. Dealers don’t need to bend over for no reason.
Yep, complaining to the dealer won’t get anywhere. It’s FCA that would need to eat it.
 

ALRUI

Well-Known Member
First Name
Arnold
Joined
May 18, 2018
Messages
411
Reaction score
147
Location
Murphy, NC
Vehicle(s)
2018 JLU Sahara, 2003 F150 S-Crew FX4, Others
Took it to the dealer, they were very helpful and told me they could do two things:

A) order parts and fix it.

B) put a few miles on the Jeep and it should disappear, they say they had a few hiccups like this in new engines and it goes away some time.

The noise does come and go for no apparent reason.


What do you guys think?
See if its coming from a noisy injector, use a LONG screwdriver held to your ear to pinpoint the noise & for Gods sake dont let hair or hands get caught up in any moving parts, I.E. fan belts, etc. Dealer should have been able to pinpoint the issue for you IMNSHO!
 
Advertisement

Clayton Offroad
 
Advertisement
Top