2015 ZL1 knock? Conclusion @ 4/27/15 - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

angryBits · 03-31-2015, 11:23 PM

Oh yeah!

I forgot to mention. He did check the computer for related bulletins and we found something that really surprised me.

There was a bulletin about adding a Oil Separator to Camaro 1LEs to fix a knock issue and new 1LEs will come with them from the factory. I'm not sure why this was only for 1LE. He said it should apply to all their performance cars. I told him I already had a Moroso Oil Separator on the way.

So that's interesting.

Nor Cal ZL1 · 03-31-2015, 11:28 PM

Quote:

Originally Posted by angryBits

The yelp reviews are outstanding. Thanks for the referral, I'll definitely check them out. I'd gladly drive 1.5 hours for a great service shop.

No problem. They are real big in the Corvette world. They work on Vettes from all over the state. If your noise is not normal they wont tell you that it is. Rich races a Zo6 and they guys are certified. More than a few members have their cars serviced at Abel, ZL1's, Z28s etc.
They also do performance work as well. They are out of the way, but if you go there I doubt that you would be unsatisfied.

If you think the car needs to be on a dyno to find the problem I would take it here

https://m.facebook.com/starkweatherp...herperformance

angryBits · 04-01-2015, 06:16 PM

My new DashLogic should arrive tomorrow -- I'll keep you posted.

Chrispy · 04-01-2015, 07:21 PM

Have you done a fill with 93 and performed the fuse pull to reset the car to the high octane table?

angryBits · 04-01-2015, 07:41 PM

Quote:

Originally Posted by Chrispy

Have you done a fill with 93 and performed the fuse pull to reset the car to the high octane table?

I don't have 93 here.

Though I'm very interested to hear more about the fuse pull to reset the car to the high octane table. What is that?

I'm going to guess the low octane table is to deal with the bad gas scenario? but if my car is using the low octane table, wouldn't it be less likely to knock? I'm totally guessing. Where can I get more info and procedure on the process?

Thanks!!

craig.martell · 04-01-2015, 07:41 PM

ALL:

I also live in the Bay Area, have a 2014 ZL1, and sometimes I hear the rattle that sounds like the super-charger problem. But since it is a 2014, it is not covered in the recall (as far as I know).

In any event, I think a Bay Area ZL1 meet up is in order. Or, you could all just join me on 4/17 at Thunderhill! Then you really can test your car.

Craig

angryBits · 04-01-2015, 07:47 PM

Quote:

Originally Posted by craig.martell

ALL:

I also live in the Bay Area, have a 2014 ZL1, and sometimes I hear the rattle that sounds like the super-charger problem. But since it is a 2014, it is not covered in the recall (as far as I know).

In any event, I think a Bay Area ZL1 meet up is in order. Or, you could all just join me on 4/17 at Thunderhill! Then you really can test your car.

Craig

I'd love to join you at Thunderhill! I took my 2013 GT500 there and had a blast, but I want to iron out this issue before I hit the track.

I'm down for a meet up. I've already seen there are a few of us on this forum that are in the Bay Area.

unstable vic · 04-01-2015, 07:57 PM

Did you here one word I said???? You have to ask for a world class tech. There trained to work on your car.

KaBoom1701 · 04-01-2015, 07:59 PM

Quote:

Originally Posted by angryBits

Oh yeah!

I forgot to mention. He did check the computer for related bulletins and we found something that really surprised me.

There was a bulletin about adding a Oil Separator to Camaro 1LEs to fix a knock issue and new 1LEs will come with them from the factory. I'm not sure why this was only for 1LE. He said it should apply to all their performance cars. I told him I already had a Moroso Oil Separator on the way.

So that's interesting.

Dude, get me that bulletin number. .....I'd love to show Vic that bulletin. Lol

ZO6 Bryan · 04-01-2015, 08:03 PM

Quote:

Originally Posted by angryBits

He did hook it up to the computer and he said there were no trouble codes. But I feel like there wouldn't be a code without an dash light, so I'm not surprised.

I'll see what my DashLogic says when it gets here.
I'm willing to bet it will say I'm running rich or lean and it will probably be a MAF sensor issue. *crossing fingers*

He should have had it hooked up while driving the car to "snapshot" the problem when it occurs.

ZO6 Bryan · 04-01-2015, 08:06 PM

Quote:

Originally Posted by angryBits

I don't have 93 here.

Though I'm very interested to hear more about the fuse pull to reset the car to the high octane table. What is that?

I'm going to guess the low octane table is to deal with the bad gas scenario? but if my car is using the low octane table, wouldn't it be less likely to knock? I'm totally guessing. Where can I get more info and procedure on the process?

Thanks!!

Yes, you are correct. If it is already knocking, putting it in the high octane table will make it worse. And the fuse pull is overrated and does nothing that the car won't do on it's own after a tankful of good fuel is run thru.

angryBits · 04-01-2015, 08:07 PM

Quote:

Originally Posted by KaBoom1701

Dude, get me that bulletin number. .....I'd love to show Vic that bulletin. Lol

I didn't get the #. I can ask about it next time I go in, but that won't be for a few weeks :/

angryBits · 04-02-2015, 06:07 PM

Oh poop!

I plugged my DashLogic into the car and recorded a video.

I produce the knocking several times throughout. Each time except the last I give it some throttle and let off as soon as I see knock retard. On the last one, I hold the throttle down for 5 seconds to see if it goes away because the technician said its okay if its only there for a second and then goes away. Hmmm...

@ 0:23-0:24 you will hear a slight tick-tick if you have superhero hearing followed by the knock detection on the display.

@ 2:53 I do 80% throttle without letting up for 5 seconds and the knock sensor keeps retarding. Obviously it's not getting learned-away by the computer.

I was really hoping I was crazy but I'm not and now I'm upset because I have to deal with the BS of getting the dealership to agree its an issue and get them to fix it. I'm going to try the dealership I bought it from first, just because I bought it from them but if it doesn't go the way I want I will try another dealership recommended earlier in this thread.

Ugh ... This $#!T always happens to me.

Chrispy · 04-02-2015, 06:24 PM

It might just be bad gas.

Did you try different stations etc?

Throw in a can of Torco, do the fuse pull overnight and log again. If there's no tick and no KR showing up (they could be mutually exclusive issues at this point) Then you know you have a preignition issue.

If the gas just sucks there you can look at Torco or putting in colder plugs to see if that helps.

The fuse pull isn't over rated as it GUARANTEES you'll be in the high octane table.

Good luck!
Chris

03-31-2015, 11:23 PM	#29
angryBits Drives: ZL1 1LE A10 Join Date: Mar 2015 Location: CA Posts: 1,093	Oh yeah! I forgot to mention. He did check the computer for related bulletins and we found something that really surprised me. There was a bulletin about adding a Oil Separator to Camaro 1LEs to fix a knock issue and new 1LEs will come with them from the factory. I'm not sure why this was only for 1LE. He said it should apply to all their performance cars. I told him I already had a Moroso Oil Separator on the way. So that's interesting. __________________ Current: 2019 ZL1 1LE A10 Mods: MPS4s Tires \| Borla Atak \| CF Steering Wheel Previous: 2018 ZL1 1LE M6 \| 2017 Z06 Z07 M7 \| 2017 GS A8 \| 2015 ZL1 M6 \| 2013 GT500

04-01-2015, 06:16 PM	#31
angryBits Drives: ZL1 1LE A10 Join Date: Mar 2015 Location: CA Posts: 1,093	My new DashLogic should arrive tomorrow -- I'll keep you posted. __________________ Current: 2019 ZL1 1LE A10 Mods: MPS4s Tires \| Borla Atak \| CF Steering Wheel Previous: 2018 ZL1 1LE M6 \| 2017 Z06 Z07 M7 \| 2017 GS A8 \| 2015 ZL1 M6 \| 2013 GT500

04-01-2015, 07:21 PM	#32
Chrispy 11.91 ET Bone stock Drives: 2015 Camaro ZL1 Join Date: Nov 2014 Location: Canada Posts: 353	Have you done a fill with 93 and performed the fuse pull to reset the car to the high octane table?

04-01-2015, 07:41 PM	#34
craig.martell Drives: Zelda--A 2014 Summit White ZL1 Join Date: Feb 2014 Location: Central Coast of California Posts: 29	ALL: I also live in the Bay Area, have a 2014 ZL1, and sometimes I hear the rattle that sounds like the super-charger problem. But since it is a 2014, it is not covered in the recall (as far as I know). In any event, I think a Bay Area ZL1 meet up is in order. Or, you could all just join me on 4/17 at Thunderhill! Then you really can test your car. Craig

04-01-2015, 07:57 PM	#36
unstable vic Account Suspended Drives: 2014 ZL1 Join Date: Jan 2015 Location: Long Island, NY Posts: 342	Did you here one word I said???? You have to ask for a world class tech. There trained to work on your car.

04-02-2015, 06:24 PM	#42
Chrispy 11.91 ET Bone stock Drives: 2015 Camaro ZL1 Join Date: Nov 2014 Location: Canada Posts: 353	It might just be bad gas. Did you try different stations etc? Throw in a can of Torco, do the fuse pull overnight and log again. If there's no tick and no KR showing up (they could be mutually exclusive issues at this point) Then you know you have a preignition issue. If the gas just sucks there you can look at Torco or putting in colder plugs to see if that helps. The fuse pull isn't over rated as it GUARANTEES you'll be in the high octane table. Good luck! Chris