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.
Brake light issue
Tuesday 09/09/2025 | 1988 | 911 Carrera Cabriolet | Brakes
I had my brake lines replaced and now my interior brake light will not turn off! Im trying to avoid not having to go back to my mechanic to fix this. Is there something I can do on my end to remedy this?
READ ANSWERNo fuel filter on a 2009 997.2
Sunday 09/07/2025 | 2009 | 911 Carrera 4 | Fuel System
Is there any fuel filter available
READ ANSWERSymptoms from Bad Fuel Pressure Regulator and Bad Diaphragm Damper
Saturday 09/06/2025 | 1984 | 911 Carrera | Fuel System
3.2 Engine is difficult to start when Warm after turning off for 30 minutes until about six hours.Cylinder Head Temp Sensor Changed recently when the engine had difficulty starting when cold.Could it be the Fuel Pressure Regulator, and/or Fuel Diaphragm Damper? What are the symptoms for these two items?
READ ANSWERReplace A/c condenser and evaporator needed for an early 1984 944
Friday 09/05/2025 | 1984 | 944 | Heating and Ventilation
Can anyone recommend where I can obtain a new condenser and evaporator with installation for an early 1984 944.
READ ANSWERTiptronic Service
Friday 09/05/2025 | 2006 | Cayman S | Transmission/Clutch
2006 Cayman S with Tiptronic 17k milesShould I have my tiptronic transmission serviced its quite expensive to do a fluid and filter change $1100 , or leave it alone ? No current red flags the car will be 20 years old next year and it has me concerned
READ ANSWERQuestion about 924 rear window
Thursday 09/04/2025 | 1978 | 924 | Other
1978 924, Does anyone have a fix for the 924 rear window delaminating? After the window popped open, going over a bump in the road, the metal trim came away from the glass. Not sure how to fix that?
READ ANSWERI have a 2007 997.1 convertible. The cover (the entire cover) for the roll bars is coming detached. The top seems to work quite well. Any thoughts as to what I can do about this?
Thursday 09/04/2025 | 2007 | 911 Carrera 4S Cabriolet | Other
READ ANSWERI want to replace the PCM with an upgrade
Thursday 09/04/2025 | 2008 | 911 Carrera 4S Cabriolet | Accessories
How does the Porsche upgrade fair against the Alpine the Kenwood products?
READ ANSWERwhat is correct procedure for adjusting 901 transmission shifter
Tuesday 09/02/2025 | 1970 | 911E | Transmission/Clutch
Trans was just rebuilt. 901 TransSeems that when engine and trans are hot (60min good run) ? not sure that this means anything When downshifting to 2nd sometimes get grinding and hard to engage, also when in 1st going to 2nd.When stopped sometimes hard to engage 1stSometimes grinding going to reverseShifting seems good most of the timeNeed good detailed instructions for shifter adjustment
READ ANSWERStarts but won’t idle then dies shortly after.
Monday 09/01/2025 | 1987 | 924S | Fuel System
Just replaced head gasket, water pump, all belts including timing.
READ ANSWERHeadlight assembly removal
Monday 09/01/2025 | 1988 | 911 Carrera Cabriolet | Electronics
Hi,Im trying to remove my headlight assembly to put in a new bulb. I took out the bottom Phillips screw but I see two additional screws on either side, do these come out as well?
READ ANSWER2011 911, left tail light turn signal stops blinking on hot days
Sunday 08/31/2025 | 2011 | 911 Carrera | Electrical
2011 911, left tail light turn signal stops blinking on hot days
READ ANSWERDoor cards in 981 CGTS
Saturday 08/30/2025 | 2015 | Cayman GTS | Interior/Upholstery
Pedro,I know you are the door card guru, my '15 CGTS has leather door cards. Are leather door cards as susceptible to delimitation as the base door cards? Mine look great so far, knocking on wood.... Also, is there a proper side of the windshield for the PCA interior window cling sticker to go on? I have always put 'em on the left or driver's side but have noticed a few on the passenger side. Which side is correct? ...
READ ANSWERTPMS module question
Friday 08/29/2025 | 2008 | Cayman | Electronics
My TPMS stopped reporting two of my tires initially and then stopped reporting the other two as well after a few weeks. I replaced the sending units with aftermarket units and the car never "learned" any of the tire pressures. I then changed the sending units with OEM sending units with the same results. I believe the problem is the receiving module but would like to make sure before I purchase a module as they are not cheap. If a diagnostic is run on the electronics will a fault show up if t ...
READ ANSWERMy 2018 base 718 Cayman calls for replacement of the drive belt at 4 years or 40,000 miles. The build date is 7/17 and it was put into service by me in August 2017. This car now has 34,1xx miles. When last at the dealer for annual oil change/service they told me not to be concerned about the drive belt (or water pump). My understanding is the time is about as important as mileage for this type of maintenance. Which is correct?
Friday 08/29/2025 | 2018 | 718 Cayman | Engine
Most of the details in the question it seems. This a Premier Dealer, Porsche of Ocala, which I assume should know what they are saying is correct. However, it makes me wonder if they do not feel competent to do a drive belt replacement. Is this possible? Also, I purchased the extended warranty from the dealer before the original warranty expired. Do cars that exceed 40,000 miles before the original warranty expires have the drive belt replacement done under warranty? If so, will the extended ...
READ ANSWERCorned beef twice when locking car
Thursday 08/28/2025 | 2013 | Boxster | Electronics
When I lock the car, the horn beeps two times.
READ ANSWERHas anyone seen clutch plate splines wear out?
Wednesday 08/27/2025 | 2002 | Boxster S | Transmission/Clutch
I have a 2002 Boxter S w/Flat6 rebuilt engine (2.6L). A new clutch was installed when the engine rebuild in 2020, at about 39,000 miles. I recently lost drive and had the Boxter towed home, where I dropped the transmission, removed the pressure plate, clutch disc and flywheel. The first thing I noticed was a disintegrated pilot bearing, but all of the other parts looked good until I took a closer look at the clutch disc. The internal splines were worn to a point that I could spin the disc on ...
READ ANSWERSpeedometer Removal Procedure
Tuesday 08/26/2025 | 1970 | 911T | Other
I need to send my speedometer out for repair of the non-functioning odometer (speedometer itself is working normally). My question is: what is the simplest method for removing the gauge from the instrument panel. I was able to fairly easily pull the gauge with the rubber mounting "grommet" out of the hole in the IP, but it doesn't seem that I can get it far enough out to disconnect the drive cable. I don't want to force anything and pull too hard. My question is whether it's possible to acces ...
READ ANSWERWhere can you get tires mounted and balanced at a reasonable cost?
Sunday 08/24/2025 | 2017 | 718 Boxster S | Wheels and Tires
READ ANSWERWhat power upgrades are recommended for base 718 Boxster?
Saturday 08/23/2025 | 2019 | 718 Boxster | Engine
Looking for inexpensive power tuning upgrades for 718 base 4 cyl car
READ ANSWER