Engine knock - Page 3 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

zman · 10-11-2015, 03:04 AM

Quote:

Originally Posted by aegisdrgn

pass redline.

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

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aegisdrgn · 10-11-2015, 03:26 AM

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.

zman · 10-11-2015, 12:26 PM

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]

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N1rve · 10-11-2015, 01:32 PM

Quote:

Originally Posted by zman

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

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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.

zman · 10-11-2015, 01:51 PM

Quote:

Originally Posted by N1rve

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?

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N1rve · 10-11-2015, 02:17 PM

Quote:

Originally Posted by zman

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?

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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.

Ultramaroon · 10-11-2015, 02:42 PM

Quote:

Originally Posted by zman

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?

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

WazzuGrad · 10-11-2015, 02:44 PM

Quote:

Originally Posted by aegisdrgn

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.

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.

zman · 10-11-2015, 03:10 PM

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?

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BRZnut · 10-11-2015, 03:42 PM

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!

Ultramaroon · 10-11-2015, 03:50 PM

Quote:

Originally Posted by zman

Ok the noise appeared again while picking my dad up.. And disappeared again..

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

zman · 10-11-2015, 04:54 PM

Quote:

Originally Posted by Ultramaroon

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

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Ultramaroon · 10-11-2015, 05:01 PM

Quote:

Originally Posted by zman

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

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How much is a little over? 1/8 in? 1 in?

zman · 10-11-2015, 05:09 PM

Maybe 1CM @Ultramaroon

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10-11-2015, 05:09 PM	#42
zman Senior Member Join Date: Feb 2015 Drives: scion frs Location: philadelphia Posts: 531 Thanks: 233 Thanked 514 Times in 189 Posts Mentioned: 5 Post(s) Tagged: 1 Thread(s)	Engine knock Maybe 1CM @Ultramaroon Sent from my iPhone using you know what

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10-11-2015, 03:26 AM	#30
aegisdrgn Senior Member Join Date: Dec 2013 Drives: Scion FR-S 10 Series #2263 Location: Los Angeles Posts: 471 Thanks: 208 Thanked 277 Times in 179 Posts Mentioned: 4 Post(s) Tagged: 2 Thread(s)	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.

10-11-2015, 12:26 PM	#31
zman Senior Member Join Date: Feb 2015 Drives: scion frs Location: philadelphia Posts: 531 Thanks: 233 Thanked 514 Times in 189 Posts Mentioned: 5 Post(s) Tagged: 1 Thread(s)	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

10-11-2015, 03:10 PM	#37
zman Senior Member Join Date: Feb 2015 Drives: scion frs Location: philadelphia Posts: 531 Thanks: 233 Thanked 514 Times in 189 Posts Mentioned: 5 Post(s) Tagged: 1 Thread(s)	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

10-11-2015, 03:42 PM	#38
BRZnut Senior Member Join Date: Oct 2012 Drives: BRZ DGM Limited Location: USA Posts: 1,237 Thanks: 5 Thanked 431 Times in 250 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	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!

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