Technical Q&A
Welcome to PCA's source of expert advice, where our PCA National Technical Committee experts answer your questions about all things technical.
issue with insulation coming out of dash
Monday 03/02/2026 | 2008 | Boxster RS 60 Spyder | Heating and Ventilation
looking for options on repairs and a shop that might do the work in the Delaware beach area
READ ANSWERWhat are the best ECU performance tuners for a 2021 box through GTS 4.0?
Monday 03/02/2026 | 2021 | 718 Boxster GTS 4.0 | Performance Modifications
What are the best performance tuners for a 2021 box through GTS 4.0?
READ ANSWER2011 Cayman Base Rim and Tire Size
Monday 03/02/2026 | 2011 | Cayman | Wheels and Tires
I currently have the stock F17x7 et55 (205/55-17) and R17x8 et40 (235/50-17) rim and wheel setup. I am purchasing new tires for my new to me rims F18x8 et57 and R18x9 et47. I intend to go with F245/40-18 and R265/40-18 tires. The 18 inch setup is for HPDE. Will these fit without rubbing or modification? If they fit, is there any different tire setup you recommend over my choice? Thank you for your time and expertise! ...
READ ANSWERhow can I find the emergence front truck release
Monday 03/02/2026 | 1997 | Boxster | Cables and Controls
I am trying to locate the emergence release cable for the front trunk of my 1997 Boxster. It is supposed to be on the passenger side in the wheel well but I can't see it. I have seen a picture of it but can't find it. Does anyone know where I can find one? Thanks, Dave
READ ANSWERIf you have a secured parking area is it better for the car's battery life to leave the car unlocked.
Monday 03/02/2026 | 2011 | Cayman | Electrical
I leave my car unlocked with the windows down in a secure garage thinking that the security system would not be operational therefore, not utilizing battery. Will this extend battery life?
READ ANSWER968 Clutch Issue
Monday 03/02/2026 | 1992 | 968 | Transmission/Clutch
I have owned a '92 968 since '98 (and a '83 944 before that). The clutch has been getting progressively more grumpy as it gets older and can sometimes shudder quite badly from a start, especially when it is cold. The car now has 86,780 miles on it. And, I have replaced the engine mounts and transaxle mount recently, but those repairs did not help the clutch issue. More revs certainly help to get it moving, but I am thinking that it may be time to replace the clut ...
READ ANSWERare all top tier fuels equal, or do Chevron, Texaco, etc have ingredients that is preferred over fuels like Arco or Costco? Thanks
Saturday 02/28/2026 | 2024 | 718 Cayman GTS 4.0 | Fuel System
READ ANSWERre: 1985 944: ENGINE - February 2026 - Not trying to pick a fight, but my 1987 944 engine's RPM's dip on startup as well. Always has and still does.
Friday 02/27/2026 | 1987 | 944 | Engine
So, the statement "The later cars do not have this particular issue." is not really true, from my experience.
READ ANSWERPurchased 2014 Cayman Base. When starting after sitting for a while, a couple of hours or overnight, when I put it in gear (automatic) the transmission initially slips. Once it grabs it seems to shift fine in second and beyond. It does this until it warms up and then the slipping in 1st goes away until I turn it off for a while. Any ideas?
Friday 02/27/2026 | 2014 | Cayman | Transmission/Clutch
READ ANSWERBackup Camera referral requested
Friday 02/27/2026 | 2016 | Boxster | Accessories
To a Add Backup Camera info needed
READ ANSWERBody shop/paint recommendation in Phoenix AZ
Thursday 02/26/2026 | 1989 | 944 S2 | Paint
I need a body shop for paint work on an 1989 Porsche with single stage guards red paint in the Phoenix AZ area. Thank you.
READ ANSWERHas anyone worked with Chris Radbill Automotive on complete interior
Wednesday 02/25/2026 | 1987 | 911 Turbo | Body
Looking for reviews on Chris Radbill Automotive work
READ ANSWERBattery charge gauge in the gauge cluster shows charge of just over half at 12.4 volts. Is this normal?
Wednesday 02/25/2026 | 2013 | Boxster S | Electrical
New battery installed at dealer three months ago. Three weeks ago battery completely dead after not driving for 1 1/2 weeks. Dealer charged battery and did a draw test and said all is correct. Both key fobs are stored away from car. Dealer suggests trickle charger if not driven for more than a week. Porsche recommends trickle charger if not driven for more than six weeks.
READ ANSWERDoes anyone have experience tuning PASM shock dampers with DSC Sport Controller?
Monday 02/23/2026 | 2016 | Cayman GTS | Suspension
I just installed the v3 DSC Sport Controller with the default settings for 981 GTS with PDK and PASM. I’ve used it for one AutoX event, and it felt fine. However, I’ve read that the default tuning file can be improved for AutoX. Does anyone have experience using this controller and adjusting the settings for AutoX or similar use?
READ ANSWERRemoving door-to-door horizontal trim strip on dash.
Sunday 02/22/2026 | 2010 | Boxster | Interior/Upholstery
Does anyone know how to remove the horizontal trim strips (in Volcano Grey) so that I can paint them? They run the length of the dash from door to door. There are a total of 6: two short ones (2-3") on either side of the steering wheel, one above the radio, one that functions as the cupholder door, and two short ones flanking it. I'm pretty sure the cupholder door is straightforward but the total of 5 other ones look like they have tabs, and a male plugs. i don't want to break them ($30 ...
READ ANSWERHello, For my car, is Liqui Moly Leichtlauf High Tech 5W/40 is correct. I believe my car has the A40 engine oil spec. if not, please let me know your recommendations. Thank you.
Friday 02/20/2026 | 2018 | 718 Cayman S | Engine
My dealer uses, Mobil1 ESP 0W/40.
READ ANSWERCan I tune a 9987.1 c2S manual? And is Sefton’s a good way to go?
Friday 02/20/2026 | 2007 | 911 Carrera S Cabriolet | Engine
READ ANSWERwhat tpms sensors should i put in my base 2015 caymqan
Wednesday 02/18/2026 | 2015 | Cayman | Electronics
TPMS sensors, any brands other than stock porsche, can i use?
READ ANSWERPorsche PDK parts 9P1-321-359 vs 9G1-321-025-00?
Tuesday 02/17/2026 | 2013 | Boxster S | Transmission/Clutch
What's the difference between the two? Both are listed for my car as "This part fits your car" and interlinked with "Also purchased." Did the 1359 obsolete the 2500? Thanks. Trans Pan (with integral filter)https://porsche.oempartsonline.com/oem-parts/porsche-trans-pan-9p1321359Transmission Oil FilterREAD ANSWER
What's the difference between 9p1321359 trans pan and 9G1-321-025-00 trans oil filter?
Monday 02/16/2026 | 2013 | Boxster S | Transmission/Clutch
What's the difference between 9p1321359 trans pan and 9G1-321-025-00 trans oil filter? Are both on my car? If so, should the 025-00 ever be serviced or changed? Thank you. Both are show as "this part fits your car" see links below. Davehttps://porsche.oempartsonline.com/oem-parts/porsche-trans-pan-9p1321359READ ANSWER