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YOUR RESEARCHLong Time Cranking on Cold Start - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Replace battery and it's started nice and strong ever since
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I replaced the battery and it's started nice and strong ever since.
Long Time Cranking on Cold Start - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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Leading evidence: 'Replace battery and it's started nice and strong ever since' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'lot of opinions' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check grounds' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Long Time Cranking on Cold Start - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Use liqui moly product, i think there is only one
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I use the Liqui Moly product, I think there is only one for petrol engines.
Long Time Cranking on Cold Start - 986 Forum - The Community for Porsche Boxster & Cayman Owners
lot of opinions
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Long Time Cranking on Cold Start - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Check grounds
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Long Time Cranking on Cold Start - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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I have a 2002 Boxster S currently at 32000 miles. Mostly stock (Numeric shifter and cables are my only mods). I am pretty sure everything else on it is factory original.
When I bought it three years ago, it took a long time to start and was very weak cranking. Within three days of getting it home, it wouldn't crank at all. It turned out the battery was 11 years old. I replaced the battery and it's started nice and strong ever since. Turn the key, a couple cranks (about 1 - 2 seconds) and vroom - it's running. Instant like you expect from a new car.
Until a couple weeks ago. I had one or two cold starts that took a few moments longer than usual to crank. It cranks strong, it just took a little longer. It happened once, i didn't worry about it. Then it happened again. Maybe every 5th start or so it cranked a little longer before turning over.
Now it is happening every two or three starts and cranking for 3-4 seconds before starting. Those cranks are strong. It's not weak starting at all, just slow. It's mostly cold starts but it has happened once or twice on a warm start.
Fresh oil change within the past month. Oil level is good. Battery cables are tight. 93 octane gas from mostly the same place every fill up since i bought it. Once it's running, it runs well. No hesitation, mis-fires, ticks, or extra noise etc.
I'm in the deep south. Temps are warm lately (70-80F). It was starting faster during the winter.
Looking for ideas of where and what to investigate. Do these have a cold start injector specifically for cold starts?
Thanks in advance for any and all advice!
Thanks. I will check that out. Is it easier to replace outright or is it worth cleaning up and reinstalling?
I have not checked for fouled plugs or cracked coil packs yet either. I would expect a mis-fire or other rough running if those were an issue. It sill won't hurt to check
At that age, if you lack records of the crank sensor, I would just put one in there.
But I wonder if you might check your grounds? They can cause this as they degrade.
I think the grounds are good. all connections tight, no corrosion. They look brand new. I checked them in the past and checked them again last night. This car has had a pampered life (until i got it).
You could run an quality injector cleaner, it won't harm. You should pull the codes if there are any, maybe something leads you to a (starting) problem. Next question would be sparks -- you could do a visual check, but with that milage they have only 50% of their lifespan referring to the maintenance-plan. Fuel pressure could be worth checking as well.
I've been thinking a quality injection cleaner would be a good idea in general. Do you have one you recommend? That might be worth its own thread. There's probably a lot of opinions on that.
I'm not seeing any codes from my generic OBDLink+ scanner. I do have an airbag light but I think that's related to the child seat thing under the seat not getting plugged in right when i took the seats out.
You might check those coils.
I remember reading coil packs might be a cause of similar problems. You’ll probably need to remove them, but look for cracks on top. They can be very small: hairline and tough to see unless removed. I wasn’t having trouble but when changing plugs, found 3 or 4 cracked. Replaced all for good measure. Some have smeared silicon over them but I find that just kicking the can down the road.
I use the Liqui Moly product, I think there is only one for petrol engines. I know they are suitable for that purpose an have a high PEA-content.
I would use Durametric or PIWIS for the codes, these generic readers sometimes detect nothing at all or are misleading.
https://docs.google.com/spreadsheets/d/1ugvGyiItUfgpNzy_DjkPt2VzAr3wCgkbcB6yWtv_IN4/edit?pli=1&gid=0#gid=0
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