r/944

▲ 2 r/944

Intermittent Excessive Engine Vibration at Idle

I’m looking for some input on an intermittent vibration ONLY when idling.

1987 Porsche 924S

At idle, the car will run perfectly smooth, and then randomly transition into a heavy vibration for about 3 seconds before settling back to a smooth idle again. The engine note changes pitch slightly during these vibration cycles.

I found by watching the video you can best see the vibration by looking at the windshield washer fluid in the tank

At the 16 seconds mark you can see the washer fluid in the reservoir visibly sloshing around due to the vibration. Then at the 19 second mark the vibration stops and the engine returns to its normal idle.

The vibration is noticeably worse when the AC is turned on at idle, though the AC was off during the video.

It also happens regardless of engine temp; it’s slightly more pronounced when cold, but it persists even once the engine is fully warmed up.

I’m curious if this is just a quirk of these cars or if I should be digging into something specific. Has anyone else experienced this pattern? Any ideas on what might be causing that short, stumble or vibration?

u/Brickmaster3000 — 3 hours ago
▲ 52 r/944

Headlights

Hey ya’ll, 84 early. I was wondering if you guys have any tricks to pop the headlights or do sleepy lights like I did here without having to have the parking lights on

u/Acceptable-Bad-1414 — 8 hours ago
▲ 7 r/944

What switch is supposed to be here?

We're giving my gf's 944 some tlc and fix various interior bits. Can someone tell us what switch should be in that hole above the shifter on the left on the center console? It's a euro 944 from 1982.

u/AllergyMayDie — 1 day ago
▲ 33 r/944

Modernizing a 944’s looks

Looking to buy an 84 944 in red. I’m a college kid so I’m not really looking to spending a ton of money on modifications. I’m big into the OEM+ style. Anyone have any suggestions to make the 944 look more modern like on the wheels or taillights. Any suggestions for Porsche wheels or aftermarket wheels you can fit with the Porsche crest that would look good?

I like the look of the build above ^^^

Side question? Any suggestions to improve reliability?

u/LiamIGuess — 1 day ago
▲ 74 r/944

Sway bar is like new again 👍

As part of our manual steering rack upgrade I did some work on our sway bar. Cleaned up all the hardware and bar itself. Plus we added new drop links and Powerflex bushings. Looks brand new! First drive yesterday and the body roll was noticeably reduced 👍

u/BillSKenney — 1 day ago
▲ 321 r/944

Wasn’t necessarily looking for a 944, but couldn’t resist

1988 Turbo painted Miami Blue. Didn’t realize how much I missed driving a manual transmission car.

u/ALLIDOISWIN_WIN_WIN — 2 days ago
▲ 15 r/944

Does anyone know what this black square is?

It came like this when I bought the car. Just curious on what it is?

u/Desperate-Meat3297 — 2 days ago
▲ 6 r/944+1 crossposts

[924] 1400 rpm idle with idle screw fully closed — can’t find the air leak

I’m chasing a high idle / hissing issue and I’m out of ideas.

Warm idle sits around 1200–1400 rpm, even with the idle screw fully closed. If I blip the throttle, it often hangs at about 1400. Throttle cable/linkage doesn’t seem to be sticking.

There’s a loud hiss/whistle. I first thought it was around the throttle body/AAV area, but it seems loudest around the airbox.

So far I’ve tried:

- smoke test and no obvious leak

- spray test without clear rpm change

- new 12 mm AAV hose

- pinching some AAV/vacuum hoses: no obvious result

- ignition timing roughly set to Euro spec, 10° BTDC with vacuum disconnected

The engine starts and runs, but idle/mixture adjustment is a mess because I can’t get the idle down. Also, the fuel distributor is a replacement unit, so mixture is definitely not factory-set anymore, although I did a basic CIS reset following the manual.

u/TheLastRole — 2 days ago
▲ 50 r/944

I was given the chance to take whatever I wanted from an abandoned 1983 for $150… needless to say, I didn’t go home empty handed :D (parts acquired listed below—I have a 1984 I’m restoring)

I packed it all into the GTI luckily; i wasn’t anticipating so much of it being worth taking. The ~3 hour drive home kinda sucked but worth it overall.

PARTS: Both seats, both door cards, both rear “door” cards, entire rear seat top, rear seat bottom part leather covering, all arm rests, all weather stripping, all side markers, both CVs, both headlight housings, both rear light housings, steering wheel stalk, seat rails, all 4 door vent pieces, all 4 windows, whole spoiler, throttle body, intake joint, various engine hoses and connectors, shifter assembly, shift knob, shifter boot, new gauge cluster, wiring harness shit, metal moon roof WITH working and healthy hinges/locks, headliner, seatbelts, and other shit I’m probably forgetting.

The part i am happiest about is the CVs. They look healthy and feel healthy internally.

Still can’t get over the fact it was all for $150

u/Ethansimler — 3 days ago
▲ 45 r/944

944 paint job

Looking to paint my 944, but ive seen some strong opinions on the matter. A lot of people say to keep as much original paint as possible but I can’t imagine that’s possible for any of mine except the rear? And would guess it wouldn’t match very well if I left that part alone.
I have a local maaco with absolutely stellar reviews (I know everyone hates on maaco but this franchise seems to have an incredible crew), so I’ve been looking at that route as I’m not looking to spend $7k+ on painting it.
Any input?

u/joesgone24 — 3 days ago
▲ 22 r/944

a little ongoing project...

working on a customer design request. this will be interesting.

924S skid plate design

u/that_one_vw_guy — 3 days ago
▲ 21 r/944

Y'all, my Antique Tags

I did not request this, completely random.

The Porsche gods are smiling upon me.

u/ITMORON — 3 days ago
▲ 16 r/944

87 S w/ ABS Brake Bleeding Question

Question for everyone, I have an 87 S w/ abs that I just replaced the rubber brake hoses all around, rebuilt all the calipers, put new pads and rotors on and fitted a new master cylinder. I’ve been using a power bleeder and a friends help to bleed the brakes and have no air coming out and yet the brake still feel spongy. Does air get trapped in the abs system? Is there a way to bleed the abs unit? I’m at my wits end.

u/combsmossnyc — 3 days ago
▲ 64 r/944

Managed to find a MINT set of early script door cards. So excited to get these on the 944! (Ft. the diesel beater)

u/Chickiliin — 4 days ago
▲ 10 r/944

924/944/928 Yakima Roof Racks [MONTH OF FREEDOM SALE] - Limited Stock

Everything ordered by July 15th will ship on or before 07/31/2026, and I can guarantee it'll arrive before 944Fest. After August 1st, I can't guarantee delivery before everyone heads to the 'Fest, so if you've been thinking about a rack or lift kit, now's the time. If ordered before July 31st and on backorder your items will ship on or before 08/31/2026.

After several months of reverse engineering, testing, and refining, my Yakima Q4 replacement clips for the 924/944/928 are finally finished. They're based on 3D models of original Q4 clips and are direct drop-in replacements that let you bring your old Q Tower system back to life without hunting for impossible-to-find originals.

Complete Yakima Roof Rack Systems

  • NOS Complete Kit: $1,250 $900 + shipping (1× 924/944 kit, 2× 928 kits)
  • Refurbished Complete Kit: $600 $475 + shipping (3× 924/944 kits, 3× 928 kits)
  • Used Complete Kit: $500 $400 + shipping (round bar end caps included if available; clips supplied in raw stainless)

Front Lift Spacers

  • 2" Front Lift Spacer Kit: $400 $300 shipped — Includes all required hardware and FREE U.S. shipping. 1 pair in stock.

Replacement Clips

  • Q4 Clip Replacement Pair (pads + stickers): $130 $110 shipped (2 pairs required per vehicle) — 7 pairs in stock
  • Q30 Rear Clips (928): 3 pairs in stock

Also, the DAE Technologies website is almost ready. It'll feature downloadable 3D scans, affordable CAD files, free STL files for common plastic parts, low-cost printed replacements, and technical resources for the 924/944/928 community.

If you want your parts installed before 944Fest, reserve them before July 31st while sale pricing and inventory last.

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u/that_one_vw_guy — 3 days ago
▲ 365 r/944+2 crossposts

Would you buy a 944 S over a 944 Turbo?

u/DylerCars — 6 days ago
▲ 106 r/944

Any recommendations for some Quality life mods?

Just bought my first 944!
It’s a 1986 NA that has around 230-ish thousand miles ( I know it’s kind of high ) It has a Lindsay racing MAF kit Lindsay racing exhaust and MOMO Steering wheel

Any help would be awesome!

u/Neat-Space-5571 — 5 days ago
▲ 4 r/944

Price Check: Cracked Dash Repair

Hey folks! I bought the Classic 9 dash covers and have been trying to get a quote for an upholstery shop to do the repair. It’s been tougher to get a quote than I’d expected. I’ve had several upholsterers say they don’t do classic dashes, one went out of business while they had my extra dash and vinyl and it took me forever to get it back, had one shop tell me they wouldn’t use the Classic 9 vinyl, but would use their own vinyl and do it for $5,000. That last guy gave off really shady vibes.

All that being said, I got a quote after 3 weeks of waiting from another shop. They quoted me $2,300. I normally like to get multiple quotes, but it’s been a challenge even getting one.

How does $2,300 sound to y’all considering the dashboard is already out of the car?

Thanks for sharing your expertise!

EDIT:
I ended up shipping the dash to Classic 9 in Michigan. Spoke to them on the phone and they were so helpful. Even after $600 to ship it getting them to do the work is still around $1,000 cheaper than getting it done locally.

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u/DonutBaconSushi — 4 days ago