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.

I just inherited a Porsche motor with a serial # 6279048. Can anyone what year it is? Anything else about it?

Wednesday 02/04/2026 | 1986 | 911 Carrera Cabriolet | Engine

I just inherited a Porsche motor with a serial # 6279048. Can anyone what year it is? Anything else about it? Thanks in advance.

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Replacement of fuel pump in 2005 CarreraS

Wednesday 02/04/2026 | 2005 | 911 Carrera S | Fuel System

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Climate control led pan Al replaced but no pixels lighting up

Tuesday 02/03/2026 | 2007 | Boxster S | Heating and Ventilation

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Where is the best parts store to purchase a new gas tank?

Tuesday 02/03/2026 | 1984 | 911 Carrera Targa | Fuel System

I need to replace the gas tank in my 911 and the options and prices are all different. I want to buy one that fits like the original. Thank you!

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I need to have my 98 Porsche Boxster (all original and w/18,000 miles)) appraised for the insurance company . I realize that Boxsters are not the most valuable Porsche's but that is what they are requiring.

Tuesday 02/03/2026 | 1998 | Boxster | Other

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gt2 2008 porsche

Tuesday 02/03/2026 | 2008 | 911 GT2 | Other

I have owned my porsche since 2009. I bought the car through a broker in the states. The car has a rare body color combination of guards red and black. Rear mirrors are in black. CAme with the gt2 clubsport package. All 2008 gt2s I have seeing come in a one solid color. I would like to know if my car is a special request, etc. Also came with rollbars and five point harness. vin wpoad299x857960083. tks ...

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All functions of the radio controls work and the sound works, but I cannot see anything on the screen so I do not know what type of audio or radio channel I am listening to.

Monday 02/02/2026 | 2006 | Cayman S | Electronics

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After my porsche warms up the tiptronic automatic never downshifts back to first it only downshifts to second when coming to a stop unless I put it in manual and do it myself.

Thursday 01/29/2026 | 2002 | Boxster | Transmission/Clutch

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If my 1985 Carrera (RoW car) has 15" teledial rims, the option sticker has no code for the 16" Fuch upgrade, but the door sticker shows 16" tire inforamation is it possible it came stock with 16" Fuchs?

Tuesday 01/27/2026 | 1985 | 911 Carrera Cabriolet | Wheels and Tires

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Parking Brake Error after installing new brake rotors and pads

Tuesday 01/27/2026 | 2017 | 718 Boxster | Brakes

I put new rotors (Brembo) and pads (Porsche) on my 2017 718 Boxster. I cleaned up the parking brake with brake cleaner but did not adjust or change any parts. Now the park brake does not work and I have a parking brake failure error on the dash. I have a POR3 and that cannot reset or calibrate the parking brake. It is showing a 0 air gap so next, I did attempt to adjust the air gap. I tried the brakes with the car going under 10mph and the parking brakes work but they will not work when the c ...

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I recently purchased a 1986 Carrera. It was a "barn find" and the extensive oxidation (aluminum oxide) has caused the throttle to be frozen. Any suggestions for removing the oxidation to free up the throttle body. I have heard of boric acid dip and electrolysis to remove aluminum oxide but I do not know if either has been tried on a frozen throttle body. Thanks in advance for your help.

Monday 01/26/2026 | 1986 | 911 Carrera | Other

I recently purchased a 1986 Carrera. It was a "barn find" and the extensive oxidation (aluminum oxide) on the motor has caused the throttle body to become frozen. Any suggestions for removing the oxidation to free up the throttle body. I have heard of boric acid dip and electrolysis to remove aluminum oxide but I do not know if either has been tried on a frozen throttle body. Thanks in advance for your help. ...

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The battery is my 911 Carerra Cabriolet recently died and had to be replaced. The heated seats button / function now no longer work

Monday 01/26/2026 | 2006 | 911 Carrera S | Electrical

I am wondering if I somehow blew a fuse or shorted the switch with the surge of a jump and new battery.

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I recently purchased a 2012 Cayman Base with the 2.9 liter engine. Does this engine have DFI?

Monday 01/26/2026 | 2012 | Cayman | Engine

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I had bird excrement on the ragtop of my Boxster for 36-48 hours ( I was away so not sure exactly how long the stuff was on the car). I was able to remove the stuff itself but a faint, white spot remains on the ragtop. What is the best way to r emove that spot? Thank you.

Saturday 01/24/2026 | 2013 | Boxster | Other

No, thanks.

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What do I maintain/replace to extend my cars life?

Saturday 01/24/2026 | 2008 | Boxster | Other

I have owned my car for 14 years and theoretically would like to get another 14 years out of the car. I have maintained the car myself and it has proven to be highly reliable. Based on the cars age and mileage, can someone recommend a list of items that should be addressed that are not considered general maintenance items but have or could fail on a Boxster due to age?

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2004 Boxster S; fob doesn't work; immobilizer never wet (removed & checked); reinstalled immobilizer. Now when putting key(fob) in ignition, all dash lights up, radio & fan works, but car doesn't start - starter doesn't initiate. Do I need to reset the fob, ECU, immobilizer, or what? Any advice will be greatly appreciated. Thanks!

Friday 01/23/2026 | 2004 | Boxster S | Electronics

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Is a door handle assembly for a 1987 924S the same as the door handle assembly on a 944 of similar vintage? I need to replace both the driver's and passenger's door handles.

Friday 01/23/2026 | 1987 | 924S | Body

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Tail Light Passenger Side Blinker Malfunction

Tuesday 01/20/2026 | 1984 | 911 Carrera | Electrical

Right Rear Blinker not working. With Headlights OFF - When turned on, both blinker bulb and brake light bulb illuminate but Do Not flash on/off.With Headlights ON - Right Rear Blinker and Brake light bulb remain OFF.

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How difficult is it to replace a fuel pump relay? Is the fuel pump relay difficult to get to?

Tuesday 01/20/2026 | 1987 | 924S | Electrical

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Need help decoding this engine number. M96/25 61505842

Tuesday 01/20/2026 | 2005 | Boxster | Engine

I'm mainly interested to find out if IMS is serviceable or engine has to be taken apart for the modfel I'm considering to purchase.

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