This video shows you what steps you can take to troubleshoot and diagnose why your Porsche has smoke coming out of the tail pipe when you start it.
1. Test the AOS: https://youtu.be/uCAej8kKzvQ
2. Replace your Fuel Injectors: https://youtu.be/lxV_1jIbVFE
3. Check for Vacuum Leaks: https://youtu.be/itcQyuwM1dQ
4. Check your Fuel Trim values: https://youtu.be/QUgxzHXKbAI
5. Perform a Blow-By test: https://youtu.be/c6ddp1ZWg-Y
6. Rebuild Engine… COMING SOON!
PIWIS Install video: https://youtu.be/xjw5aYO9qCQ
Manometer: https://amzn.to/3uUZGHv
Oil Cap: https://amzn.to/41vcenA
Silicone plugs: https://amzn.to/3GPBCfL
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No. 2 drill bit: https://amzn.to/414wo81
3/4″ rubber cap: https://amzn.to/43zc28t
Smoke Tester ($120): https://amzn.to/3PkesjM
Cap Plug Kit ($27): https://amzn.to/3Pk1WRw
Smoke Cone Intake Boot Adapter ($14): https://amzn.to/3odT580
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I am a Do It Yourself, also known as DIY, mechanic. I am NOT a professional mechanic. I do not have any formal training in the automotive field.
Help Me DIY assumes no liability for anything you choose to do to your car, before, or after watching one of my videos or utilizing the content from this web site.
All DIY repairs or modifications you perform to your car are made at your own risk. Sometimes, even if you’ve done everything the right way, you can destroy or damage one or more things on your car. You must understand this, but by leveraging knowledge and patience, the probability of encountering one or more problems can be reduced.
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I too feel like I was seeing steam, not smoke. But I'm sure you know the difference! A head gasket would still be a pretty involved job, but easier than a rebuild.
I originally found your channel because I bought a 2006 cayman s with 48,000 miles on it last year and I was thoroughly worried about how to maintain the engine. I was hoping with each video you made that you would not declare you needed a rebuild on your 2006 987 Cayman S. This video bums me out, lol. Right now, I sometimes get a little puff of white smoke at startup and normal oil consumption at 54000 miles. Car feels like a million bucks when it pulls and when I turn.
Since purchase…
Ultimate AOS
New Fuel Injectors
New Water Pump
Numeric Racing Short Shifter
DSC PASM Controller
Wavetrac LSD
IPD Plenum
New Spark Plugs
Soul Performance Exhaust
Softronic ECU Tune
FVD Brombacher Oil Pan
Stainless steel brake lines
GT3 Master Brake Cylinder
Girodisc 2 piece rotors
Driven DT40 oil only
Out of all that the Numeric shifter and the DSC controller are like pure magic when it comes to driving canyon roads. Simply amazing. I am still on Raby's elective engine notification list so the engine itself will eventually be a 3.8 when I pull the trigger.
Looking forward to your future videos on this build!
Did fuel trims show rich? Did you smell the exhaust? Are you losing oil? Did you check for more vac leaks? Looked like you were running rich, maybe due to vac leak. You can spray carb cleaner to find them. Bore scoring is accompanied by an engine tick. Love the idea of 3.8 swap, but confirm it’s a failing engine first.
If there’s smoke from having too much fuel / running rich, wouldn’t the smoke be black (or rather… not white)?
Excited about engine project and increasing to 3.8, however sorry for the circumstances around you deciding to do this:(.
My 2023 718 has white smoke out of the exhaust at start up (and for about 10 seconds) when it sits overnight. It has done it since I bought it with 7 miles on it and it has 1200 now.
I think it is only from a short drive. Very short
ok, well i just fell down a rabbit hole reading about fuel trim. are you sure its smoke and not steam? maybe its the head gasket? taking a little whiff of the exhaust can tell you alot about what's going on with your engine. Than again, I'm not a professional mechanic.
mine does a little if it’s been sitting for couple weeks
Oh no, another rebuild. Sorry to hear this. If you need help, let me know.
Wow. So did you just really want to rebuild another?
I bought a cheap 987.1 Boxster S as a track car. My AOS was bad when i bought the car so it was the first thing I changed. Mine still sends out a puff of smoke the morning after I've been driving hard and that's it. No more smoke after that initial puff or when driving it. Thanks for your videos, they help a ton!
How about a compression test? A leak down test? Oil consumption? Coolant consumption? The plugs show any evidence of oil fouling?