r/CivicSi

Haven’t even had her a month😭
▲ 33 r/CivicSi

Haven’t even had her a month😭

Upgraded myself from a used 15 manual Civic Lx to the 26 Civic Si a couple weeks ago and got rear ended this morning🙃 thankfully it’s not that bad but I haven’t even made my first payment on it yet and she’s already damaged😭 time for me to look up body shops…

u/hereforthevibes987 — 3 hours ago
▲ 36 r/CivicSi

New Nose, who’s this?

Got a new custom front nose badge done here recently by another Redditor (I’ll tag in comments) and I gotta say the white just keeps growing on me.

‘26 SI, 37k miles

u/Glassholer — 17 hours ago
▲ 15 r/CivicSi

This car is awesome (10th gen)

I just love this car so much. The revs the sound the handling sport mode getting the perfect shifts. And idc what people say if you know how to drive its fast. I dont have much in my life, but I'd spend hours driving this thing if I could I love it so much.

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u/Busy-Environment84 — 11 hours ago
▲ 13 r/CivicSi

Spring's finally here

The weather's finally nice enough to take my 08 out of winter storage ans back into regular rotation. can't wait to start crackin Vtec again!

u/Successful_Ad_9707 — 14 hours ago

Yofer Body Kit

I want a rear defuser for my 26 Si but I don’t want the lines to not match the original side skirts and I don’t like any aftermarket side skirts. How much lower is the Yofer diffuser compared to the original side panels? Pics would be appreciated, mine is in white so if white even better

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u/HotSet3939 — 4 hours ago

Spring is here looking for front lip, side skirt, and rear diffuser recommendations

Mostly interested in the front lip and side skirts but curious to see what people recommended for rear diffusers as well.

u/Katoka_X — 11 hours ago

Dashcam options and placement (9th gen)

9th gen owners, where do you guys have your dashcams mounted? With the way the windshield wipers work they don’t wipe the upper middle portion where most dashcams sit and it would just block the camera with all the dirt.

Where do you guys have them mounted so the cables and camera aren’t totally in the way? Also any recommendations or brands to stay away from would be appreciated!

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u/Goku420Blaze — 4 hours ago
▲ 8 r/CivicSi+1 crossposts

Clutch not disengaging???

Hey everyone, looking for some insight before I start throwing parts at this.

Setup:

  • Stage 2 clutch (very stiff pedal)
  • K-Tuned CMC & CSC
  • Acuity Shifter Bushings

Main issue:
Clutch will NOT disengage when the car is ON, but works perfectly fine when the car is OFF.

  • With engine OFF → goes into all gears smoothly
  • With engine ON → won’t go into gear at all
  • Forcing into gear starts to stall the car
  • Only way to move it is to start the car in gear

Important behavior:

  • Happened after:
    • stop-and-go traffic
    • after spirited driving
  • The first time it happened I let the car sit and cool down (hours or next day), the clutch worked completely normal again

Clutch feel:

  • Engagement point is normally pretty close to the floor
  • Pedal is stiff (stage 2 clutch), hard to tell if it’s “spongy”
  • Slave cylinder appears to move when pressing the pedal (from visual inspection)

Fluid condition:

  • Fluid in reservoir is dark/golden-brown
  • Has visible particles in it
  • Has NOT been flushed recently

Other relevant info:

  • I accidentally drove with the parking brake partially engaged recently and overheated the rear brakes pretty badly (they were glowing)
  • Issue started happening after that
  • Happened again even without parking brake, just in normal traffic.

Transmission info:

  • 2nd gear is already bad (basically neutral), but this issue is affecting ALL gears
  • Trans shifts fine with engine OFF, so I don’t think it’s internal

What I’ve checked:

  • No visible leaks from CMC
  • Slave cylinder moves when pedal is pressed
  • No obvious loose components
  • Shifts perfectly with engine OFF

What I think it is:
Leaning towards:

  • Air in clutch system / contaminated fluid boiling when hot
  • Possibly failing CMC or CSC
  • Engagement point shifted possibly and the cars safety mechanism (if any) won't let me go into gear with out proper disengagement of the clutch (Only a theory, hasn't been tested)

I do NOT think it’s the transmission, since:

  • It works fine cold
  • Problem comes and goes with heat

Plan:

  • Full clutch + brake fluid flush (fresh DOT 4)
  • Proper bleed
  • If issue persists → replace CMC, then CSC if needed

Question:
Does this sound like classic hydraulic failure (boiling fluid / bad master), or has anyone seen something similar that ended up being something else?

Videos attached of pedal + slave movement.

Also, my clutch pedal is normally that loud. I don't know why. The noise went away for like a week a few months ago when I disassembled and reassembled the clutch pedal assembly, put a brace on it, lubed the CMC plunger rod with white lithium grease, and put in a new clevis and cotter pin.

u/ThatStock8thGen — 21 hours ago
▲ 6 r/CivicSi+1 crossposts

Rear Motor Mount Advice

Hi! My K24 FG2 has a bad rear motor mount. I've heard that you should get stiffer mounts if you run headers because OEM can crack the header. So I have a few questions.

-Is it just the rear motor mount that needs to be stiffer?

-If that's the case, which should I get? I'm assuming hasport.

-This is my daily driver and comfort is very important to me. What stiffness should I be looking for?

Any answer or advice would be greatly appreciated!

reddit.com
u/ToqaKun — 20 hours ago

2013 si coupe leaking oil

140,xxx miles. my 2013 si is leaking oil somewhere on the passenger side of the engine. it’s hard to get a good picture of. It is NOT the valve cover. It is also not the oil pan, the leak start much higher up than that. I’m not familiar with the ins and outs of this engine so i’ve got no clue what’s back there. if anyone has an idea let me know, thanks!

u/Appropriate_Toe_2404 — 21 hours ago

service manual with working links

anyone had luck finding a service manual that has working links within the document to jump around to different prerequisites? i’ve seen the previous posts in here with the manual itself, but not having the links work makes it difficult to follow step by step

reddit.com
u/nuckingfoob6969 — 12 hours ago

2014 civic si coupe

Hello. New here. 2014 civic si coupe. P16e3 and p16e2 code, replaced alternator oem, new battery, new battery sensor oem, both new ground straps. Ive checked and tested all fuses, including horn fuse. Ive got continuity in all areas of the lin wire, along with <0.5 ohms of resistance, Ive oscilloscoped the lin wire and it shows good wave form for “data” transfer. Ive cleared these codes a million times, they come back as active codes on my a30m xtool every time with key on engine off. Alternator charges in fail safe mode to 14.1-14.2 volts steady. Any suggestions?

u/MasticationRS — 19 hours ago

Ball joint replacement/valve cover gasket cost?

I have an 18, my right front lower ball joint is out and my valve cover is also leaking. I’m at 109k. I’m taking it to the Honda dealer this week, but they didn’t give me a total price when I made the appointment. What’s a ball park of what I’ll be looking at?

reddit.com
u/zachm182 — 21 hours ago

6th Gen - Axle and Halfshaft are one

6th gen si. OEM halfshaft and a Napa axle. I used a new OEM circlip when installing, popped in fine. Was trying to troubleshoot a vibration on acceleration issue and wanted to swap the axle, and this mofo wont come off no matter how much I hammer on it with the slide hammer. I had a new halfshaft and another axle, so I just removed and replaced the whole assembly but I would like to try and at least salvage the OEM halfshaft.

I literally have this thing bolted to the floor and whaling on it and it wont budge. Any tips before i trash the whole thing? my arms cant take any more

u/NeedleworkerThis6332 — 20 hours ago

Fidelity Platinum Warranty

Hi guys, I purchased a non-cpo 11th gen si with 40k miles last year in October at a Honda dealership. In the purchasing process, I was able to remove all the dealer addons but the salesperson offered me to include a warranty from fidelity that covers bumper to bumper up to additional 6 years/ 60,000 miles with $250 deductible, along with bumping up my trade in by $1,000. Since I was worried about any possible problems the dealer might be hiding, I agreed to pay $3,000 for that warranty. 6 months have passed, and the car has been rock solid. Thus, now I started wondering if I purchased something unnecessary and I’m considering cancelling the warranty to get a prorated refund. Do you guys think the warranty is worth keeping? Thank you in advance for any insights.

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u/Lonely_Chance_9879 — 21 hours ago

Engine/Transmission mounts

I have an 8th gen Si. I’ve been looking for a aftermarket stand transmission mount to replace the OEM one, but I cannot find one anywhere. Does anybody know where I can find one?

reddit.com
u/hughie04 — 23 hours ago
Week