Rear Deck "popping/clicking/tapping/ticking" noise.

[jeffchap]

Mine just started popping at 6000 miles. I thought I was going to get lucky, but no. I'm going to try some WD-40 tonight. Hope it works, but what a half-assed problem to have. Oh well, first model year and all...


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[DSlayerZX]

the normal WD40 has barely any lubrication in them.. I would try something that would provide long term lubrication instead.

[sprintertrueno86]

Mine starting popping again in this cooler weather. Gonna try spray grease this time instead of WD40

[kodyo]

Originally Posted by sprintertrueno86

Mine starting popping again in this cooler weather. Gonna try spray grease this time instead of WD40

"Crack" the welds too if you haven't. I cracked the welds, sprayed, then cracked them again to work the lubricant inbetween the two pieces.

[Mikepage]

http://www.ft86club.com/forums/showthread.php?t=44636

[jeffchap]

I sprayed the driver's side just as shown in Sigh's picture, and it no longer pops. But now the passenger's side is doing it. Maybe it was all along, and I just noticed it on my side because it was closest. Gonna shoot the other side tonight.


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[akyp]

I had serious metal-metal or metal-plastic rattle near the rear deck. By driving with the rear seats down I've isolated the source to one of the seat latches. It was really annoying when driving on rough concrete. Today I decided I had enough of it and applied painter's tape to the leading edge of the metal loop. I applied one layer and the rattle was much subdued over rough concrete and pretty much gone on better roads. I will apply one more layer tomorrow.

[Mikepage]

They have performed the same thing at my dealer but they used 3M... And for me, no difference...only my solution worked fine.

[andrew20195]

Originally Posted by Mikepage

They have performed the same thing at my dealer but they used 3M... And for me, no difference...only my solution worked fine.

I haven't seen any BRZ with rattling rear seat latches, though I've seen that problem on other vehicles. Seat latches usually make a much louder, harder clacking sound than the rear shelf ticking problems common on these cars.

I've only had one customer bring their car in for the rear shelf noise (although just about all of them have it). I followed Subaru's service bulletin, and it didn't fix the noise. I ended up doing pretty much exactly the procedure that you linked above, though I use motorcycle moly chain lube rather than lithium grease for sheet metal noises.

[shiumai]

My rear deck/trunk was popping, so i tried the TSB procedure with the spray grease. improved it, but i still had some occasional popping noises. i did not want to center punch welds or pop welds with a screwdriver. i did the spray grease a 2nd time, but i also laid on my back inside the trunk and pushed up on the inside of the deck lid (where the popping noise is coming from), basically flexing the rear deck 'frame' with as much force as i could muster with both hands. since the popping only manifests itself when the body/chassis flexes, i figured i'd see if 'spot flexing'/'working it in' it would help.

when i pushed up, i could hear the welds/joints creaking as the metal flexed. after about a dozen hard pushes, the creaking stopped. i'm thinking that flexing it helped relieve some of the welds and maybe made the spray grease penetrate better. all my pops were gone, immediately after. it's been about a month and no pops have returned since i did that.

[kodyo]

Originally Posted by shiumai

My rear deck/trunk was popping, so i tried the TSB procedure with the spray grease. improved it, but i still had some occasional popping noises. i did not want to center punch welds or pop welds with a screwdriver. i did the spray grease a 2nd time, but i also laid on my back inside the trunk and pushed up on the inside of the deck lid (where the popping noise is coming from), basically flexing the rear deck 'frame' with as much force as i could muster with both hands. since the popping only manifests itself when the body/chassis flexes, i figured i'd see if 'spot flexing'/'working it in' it would help.

when i pushed up, i could hear the welds/joints creaking as the metal flexed. after about a dozen hard pushes, the creaking stopped. i'm thinking that flexing it helped relieve some of the welds and maybe made the spray grease penetrate better. all my pops were gone, immediately after. it's been about a month and no pops have returned since i did that.

When I used a screw driver to pry on the welds, i used about half the weight of my hand. It creaks all the welds without yielding any of the material and works the grease into the crease. Haven't had any issues in 2 months since I did it. I would not hit anything with a hammer or a punch. Just a slight pry between all the welded bits followed by some spray grease, followed by more slight prying and a cleanup.

[andrew20195]

Originally Posted by kodyo

I would not hit anything with a hammer or a punch. Just a slight pry between all the welded bits followed by some spray grease, followed by more slight prying and a cleanup.

This.

You aren't trying to break the welds, you're just trying to put some space between the sheet metal so the welding splatter isn't rubbing.

[cregor]

Originally Posted by Sigh-on-Rice

Popping noise from the rear when the car flexes.

• Most noticeable when going over the speed bump or drive way in an angle.
• It's a single "pop" noise when the car flexes. Sometimes another "pop" when the car goes back to flat ground.
• When the rear seats are folded, it stops popping.

Spray some white lithium grease on the metal parts circled in red circles above. I sprayed enough so that the grease covers all around the metal. Top, bottom, back, and front.
I first tried WD-40 and it got rid of the popping noise, but I still could hear some rubbing noise.
I went ahead and bought white lithium grease. The noise is now totally gone.

UPDATE: It might be a better idea to spray white lithium grease on the latch on the rear seat rather than the metal hook in that picture. Grease on the metal hook might dirty the carpet on the rear seat.

I posted a video of this specific noise to help with troubleshooting see below:

[ame="http://www.youtube.com/watch?v=0yhqykQWp8U"]Scion FRS & Subaru BRZ rear seat latch pop noise during car flex - YouTube[/ame]

[KelvinBRZ]

If I'm idling crickets come up.. but if I'm driving the crickets go away and the deck rattling begins.

I can't hear myself think anymore & I usually take long drives so I can think to myself. Is it too much to ask for to have a peaceful relaxing drive? Oh wait no, because racecar.

I tried bending the metal tab a few inches before the weld openings.. so I guess it's time for some WD-40, or get creative and find cardboard to put in between welds :|