Engine knock
 

Hey everyone, today while at a red light I noticed my engine was knocking. The sound comes from passenger side by the alternator.
I know this was posted before but for some people it was considered normal and others had to fix the rods or something. The car has 5,000 miles and it's 2013 model.. Never abused or tracked. 2 days ago I installed a berk dual muffler delete. Could that cause the issue? I don't want to take it to the dealer because I know they're going to blame it on the muffler.
This is a video of the noise I made [ame]http://youtu.be/Ey5R4dQE_Ac[/ame]
(Engine was warmed up)


Sent from my iPhone using you know what

Anyone know it this is a normal thing or do I have to take it to the dealer?


Sent from my iPhone using you know what

That does not sound normal and sounds like the knock that others have posted but not as loud. I do not see how the exhaust mods could have caused this. I seem to remember someone else with a similar level of knock and it was from the rocker arms (?).


Are you still under warrantee? If so, take it in and see what the dealer tells you.


What do others think?? Especially those that have had knock.

Yes i have extended warranty until 2021. What do I say if they blame it on the muffler delete?


Sent from my iPhone using you know what

Sounds like a leaking exhaust gasket or valve clearance problem.

i had same issue

until now not fix yet

it is camshaft balance (rocker arm lifters and shims) out of limit .

Did you take it to the dealer ?


Sent from my iPhone using you know what

no
out if warranty from long time

Yes, it does sound like something in the valve train is "clicking".

I doubt it has anything to do with deleting the muffler.

I'd also suggest you take it into the dealer for a look see.

I would't even mention that you deleted the muffler, but acknowledge that you have if asked.

If they say the "clicking" is because you did the muffler delete ........ ask for the manager ...... because the tech is incompetent.

I hope you get it figured out.


humfrz

Oh yes, you may wish to take a long screwdriver (or something like that), with the handle up to your ear and place the tip around different places to see if you can isolate the sound.


humfrz

Half hour to reinstall the muffler and straight to the dealer. Off you go.

check the drive belt tensioner

Same noise, it's the rocker arms, you'll need a new engine/engine rebuild (not a joke).

No it's not the muffler.

http://www.ft86club.com/forums/showthread.php?t=81496

Wtf, I hope it's not that bad as the other guys who had their engines torn apart 😔 .. Most messed up part is there's only 5k miles on the car and I baby the crap out of it. I'll drive it again tomorrow to see if it's still there .
Thanks for the info and help everyone


Sent from my iPhone using you know what

put the stock muffler back on then they cannot blame anything on it

Yeah I had that happen at like 10k miles

Could it also be the gas? My 90 pickup makes knock sound on certain gas stations' gas.

Awww.... Optimistic but no. OP's engine is in dire need of help.

Really should be trailered to the shop to prevent more damage.

If out of warranty who cares what exhaust you have? Not like they can deny warranty for it.

This^^^^^

...well then bro. Damn. Wish you luck. Keep us posted!

So should I put back the stock muffler or just take it the way it is? And @Tcoat I do still have warranty, only had the car for less than a year.


Sent from my iPhone using you know what

Oh,heck, I'd suggest you play it safe and put the muffler back on.

Not that the muffler (or lack of) has anything to do with it ...... but, with the "stock" muffler in place, there is less of a chance of them thinking you are a ... "racer boy".

:confused0068:

humfrz

Ahhh I mistook the other guy for you and thought you were saying out of warranty. Sorry.
Ya swap the exhaust back and get it in. They would have to prove the exhaust mods were a contributing factor to the failure but why make things harder then they need to be. If you have done your own maintence be prepared to prove it and if they deny warranty and you consider legal action then get back on here and have the Mods delete this thread. Or at very least don't say anything a lawyer could trace back to you (dealer location, any names, etc)

I only had one oil change done so far and it was done by them so no need for lawyers (yet) 😜


Sent from my iPhone using you know what

Well statisticaly speaking then you should have zero issues with them. Their standard gambit to avoid warranty work seems to be "low oil" or "not changed". The other one they like is "over revved".

Over revved as in passing the redline? Or just having it at high rpms all the time?


Sent from my iPhone using you know what

pass redline.

Well I have a automatic. Is it even possible to do it?


Sent from my iPhone using you know what

that is a good question. I believe autos are safe from overrev because it wouldn't downshift if it would exceed redline, even if the paddle shifters are used.

I may be wrong.

Ok drove it for 15 min today and I think the noise is gone from the passenger side and know I'm hearing a smaller knock on the drivers side . You can hear it in the last 2 seconds of the video
[ame]http://youtu.be/Rj-DeAz0_Ug[/ame]


Sent from my iPhone using you know what

Going to take more driving time for the noise to appear. It only happens when the engine is hot. Trust me, I had to have them drive my car like 30 miles to replicate the issue because it doesn't always make the noise.

I know you're trying to justify there is no noise, but the longer you wait, the more damage it will cause. You do not want to be driving on the freeway and then all of a sudden the engine blows a hole and you're stuck in the fast lane.

Ok will do.. I'll make sure I'll drive it for a hour before taking it to them.
On the video does it sound normal?


Sent from my iPhone using you know what

The latest one you sent sounds normal. The first one posted does not.

When you take the to the dealer, show them the video of the knock.

Not above admitting I'm confused by this. Please do show them the video and keep us posted.

You are correct, auto's do not let you overrev your engine. First it won't let you get into lower gear, second once it reaches the red line it automatically shifts in next gear---even if in paddle mode.

Ok the noise appeared again while picking my dad up.. And disappeared again.. I'll remove the muffler delete tomorrow then make an appointment. I'll keep everyone posted. Just to clear things out it can't be from bad gas correct? Also if they keep the car for long are they going to give me a rental?


Sent from my iPhone using you know what

Do not think it is from the gas. Good idea to put the muffler back on but the noise is from inside the engine and has nothing to do with the muffler. (but why give the dealer an excuse to deny your warrantee claim). If they have to keep the car for more than one day to fix the engine, or replace it, I would suspect they give you a loaner.


Keep us updated!! Good Luck!

Going to ask the obvious. What is your oil level right now?

Just checked, it was a lil over but the engine was kinda warm too


Sent from my iPhone using you know what