Top corner of rear bumper not flush to fender - Page 3

unavailablezl1 · 07-03-2018, 07:49 AM

Some might say that the ZL1 1LE is possessed. Maybe it is...

Firehead640 · 07-03-2018, 08:25 PM

It was a hot day in Arizona when I noticed this:

Seems to be the same exact issue. I'll wait until everything cools down significantly to go have a look. I don't mind if it is only when it gets hot does it do that, but it might be worth a fix.

devnull · 07-03-2018, 09:21 PM

Quote:

Originally Posted by Firehead640

It was a hot day in Arizona when I noticed this:

Seems to be the same exact issue. I'll wait until everything cools down significantly to go have a look. I don't mind if it is only when it gets hot does it do that, but it might be worth a fix.

That's not too bad at all.

devnull · 07-03-2018, 09:22 PM

Quote:

Originally Posted by Thesilent1

What youtube channel because i cant find it on youtube

Try this one bud. Not bad at all to do.

Firehead640 · 07-06-2018, 12:07 AM

Quote:

Originally Posted by devnull

That's not too bad at all.

Had a look when it "cooled down" here in Phoenix, and it still really bad. I'm hoping that it won't remain that way, going to see if Chevy will cover it on their time to correct it, along with the horrid alignment.

Travis959 · 07-09-2018, 07:58 PM

Thanks for the tip. Mine was doing this as soon as it started getting warm, so about a month or two after buying it. Mine started doing it on the driver's side but then moved to the passenger side as well. Zip-tied it right up, saves me a trip and hassle of going to the dealer.

nighttowl · 07-22-2018, 02:40 PM

Quote:

Originally Posted by Travis959

Thanks for the tip. Mine was doing this as soon as it started getting warm, so about a month or two after buying it. Mine started doing it on the driver's side but then moved to the passenger side as well. Zip-tied it right up, saves me a trip and hassle of going to the dealer.

+1

Going to the dealer sucks...

Grumpy1 · 07-22-2018, 07:51 PM

Glad I found this thread, noticed mine is doing the same thing on both sides of the car. The lines were perfect when I bought it in Jan. till today.
I was thinking (hoping) it maybe a heat issue as this has been the hottest so far this year. Also due to the fact I remember reading about the front bumper on the corvette having similar issues.
At lest there seems to be a simple fix if it doesn't pop back into place.

Bred03 · 08-10-2018, 10:26 PM

I bought the GM body kit for my SS and installed it myself. The rear diffuser that came with it required me to remove the rear bumper. When I put the bumper back on both sides of the car had the same gap you had. I used your zip tie solution and it solved the issue.

TMS · 08-30-2018, 03:45 PM

Great thread. Thank you.

Before

After

g26er · 08-30-2018, 05:05 PM

I know this is a ZL1 discussion but, my SS does it too... equally on both sides. I haven't really had a chance to check it in cooler weather since I've had it 6 months and live in the Florida heat.

I wish I could have seen this thread and did the zip tie trick while swapping to GM dark tails two months ago. It's not too bad and doesn't really bother me anymore so, not going to worry about it.

My father has worked as a body man his whole life and has owned his own shop for a majority of that time so, it's habit for him to look at gaps and lines and he's actually the one who pointed it out to me. He also kindly pointed out that the gap between the edge of the passenger door and rear quarter was larger than on the drivers side. I told him I'd take him for a ride if he stopped inspecting everything

Grumpy1 · 08-30-2018, 05:14 PM

Mine returned close to normal about a week after it kind of cooled down some. In fact it's really not worth pulling the taillights out to zip tie as it's not that noticeable right now.

VAZL1 · 08-30-2018, 05:20 PM

Mine is dong it as well, just noticed it today. Most likely heat related as others have said.
Thanks for the tip, I'll be doing mine tomorrow

Raven87 · 08-31-2018, 05:43 AM

Good thread and the pics are excellent. I have a black 2SS 1LE and have not noticed it yet but now will be looking for it closely.

But I'm just curious where the expansion/movement of the plastic bumper is moving to once the zip ties are in place? Given that the material obviously expands due to the heat, if the movement is restricted by the zip ties but the material is still heating up, doesn't that expansion have to go somewhere by the laws of physics?

Just curious if you have noticed a change elsewhere once you zip tied the bumper from moving outward?

07-03-2018, 07:49 AM	#29
unavailablezl1 Drives: 2019 Silverado Z71 6.2L A10 Join Date: Mar 2017 Location: Grapevine Posts: 2,075	Some might say that the ZL1 1LE is possessed. Maybe it is... __________________ Current ride 2019 Silverado Z71 LTZ 6.2L L87 425hp A10, 4 inch BDS Lift with Fox Factory Race 2.5 Coilovers, Borla Cat back (15HP bump), BFG KM3's 33's. Past Rides 2017 M6 Camaro ZL1 Hyper Blue 2016 M6 GT350 White with blue strips 2014 M6 Mustang GT Premium Track Pack Ruby Red 2012 M6 M3 Melbourne Red Metallic

07-22-2018, 07:51 PM	#36
Grumpy1 Drives: 2018 ZL1 Hyper Blue A10 Join Date: Jan 2018 Location: Covington LA Posts: 646	Glad I found this thread, noticed mine is doing the same thing on both sides of the car. The lines were perfect when I bought it in Jan. till today. I was thinking (hoping) it maybe a heat issue as this has been the hottest so far this year. Also due to the fact I remember reading about the front bumper on the corvette having similar issues. At lest there seems to be a simple fix if it doesn't pop back into place. Attached Images

08-10-2018, 10:26 PM	#37
Bred03 Drives: 2017 Camaro 2SS Redline Edition Join Date: Oct 2017 Location: UT Posts: 3 View My Garage	Thanks for posting this solution I bought the GM body kit for my SS and installed it myself. The rear diffuser that came with it required me to remove the rear bumper. When I put the bumper back on both sides of the car had the same gap you had. I used your zip tie solution and it solved the issue.

08-30-2018, 03:45 PM	#38
TMS Drives: 2018 ZL1 1LE - HBM, PDR Join Date: Jun 2017 Location: Rescue, CA Posts: 324	Great thread. Thank you. Before After __________________ JRE Tuned (HPTuners) \| 15% OD (9.17" crank pulley) \| TVS2300 Maggie Heartbeat Supercharger - 14 psi \| E-50 (DSX Flex Fuel kit) \| JMS FuelMax Fuel Pump Booster \| LPE Big Bore High Volume DI fuel pump \| LPE High Flow DI fuel injectors \| LT5 95mm TB \| RotoFab CAI \| AEM X-Series OBD2 wide band gauge \| Elite Engineering E2-X catch can \| Borla S-type NPP Cat-Back 3" exhaust \| Forgeline GTD1 5-lug Satin Graphite \| SunTek wrap \| C-Quartz Finest Reserve ceramic coated

08-30-2018, 05:20 PM	#41
VAZL1 Drives: 17 ZL1 Join Date: Mar 2017 Location: VA Posts: 1,075	Mine is dong it as well, just noticed it today. Most likely heat related as others have said. Thanks for the tip, I'll be doing mine tomorrow __________________ 2017 ZL1 Coupe M6, Red Hot Mods; AFE Pro 5R CAI, Kong Ported Blower and Snout, NW 103 TB, Griptech 2.31 Upper, Kooks 2",JMS Voltage Booster, Flex Fuel, Mighty Mouse CC,Jannetty Racing Tune, 680 rwhp

07-03-2018, 08:25 PM	#30
Firehead640 DEVLMAN Drives: White 2018 ZL1 Join Date: Dec 2017 Location: Chandler, AZ Posts: 66	It was a hot day in Arizona when I noticed this: Seems to be the same exact issue. I'll wait until everything cools down significantly to go have a look. I don't mind if it is only when it gets hot does it do that, but it might be worth a fix.

07-09-2018, 07:58 PM	#34
Travis959 Drives: 2019 Camaro 1LE Join Date: Mar 2018 Location: USA Posts: 39	Thanks for the tip. Mine was doing this as soon as it started getting warm, so about a month or two after buying it. Mine started doing it on the driver's side but then moved to the passenger side as well. Zip-tied it right up, saves me a trip and hassle of going to the dealer.

08-30-2018, 05:05 PM	#39
g26er Drives: 2018 Camaro SS Join Date: Mar 2018 Location: FL Posts: 31	I know this is a ZL1 discussion but, my SS does it too... equally on both sides. I haven't really had a chance to check it in cooler weather since I've had it 6 months and live in the Florida heat. I wish I could have seen this thread and did the zip tie trick while swapping to GM dark tails two months ago. It's not too bad and doesn't really bother me anymore so, not going to worry about it. My father has worked as a body man his whole life and has owned his own shop for a majority of that time so, it's habit for him to look at gaps and lines and he's actually the one who pointed it out to me. He also kindly pointed out that the gap between the edge of the passenger door and rear quarter was larger than on the drivers side. I told him I'd take him for a ride if he stopped inspecting everything

08-30-2018, 05:14 PM	#40
Grumpy1 Drives: 2018 ZL1 Hyper Blue A10 Join Date: Jan 2018 Location: Covington LA Posts: 646	Mine returned close to normal about a week after it kind of cooled down some. In fact it's really not worth pulling the taillights out to zip tie as it's not that noticeable right now.

08-31-2018, 05:43 AM	#42
Raven87 C'mon- really? Drives: Looking for a ZL1 Join Date: Aug 2009 Location: Nortwestern Ohio Posts: 1,966 View My Garage	Good thread and the pics are excellent. I have a black 2SS 1LE and have not noticed it yet but now will be looking for it closely. But I'm just curious where the expansion/movement of the plastic bumper is moving to once the zip ties are in place? Given that the material obviously expands due to the heat, if the movement is restricted by the zip ties but the material is still heating up, doesn't that expansion have to go somewhere by the laws of physics? Just curious if you have noticed a change elsewhere once you zip tied the bumper from moving outward? __________________ Steve 2018 Camaro 2SS 1LE Black #3805 - SOLD

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