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.

During our winter season here in the northwest, my car is stored in my heated garage. If weather permits, no rain, snow, slat on roads. I will take it out for a short drive. If the weather is not cooperating for a few weeks. Is it OK to start the car up and run it for 20 minutes or so?

Friday 10/22/2021 | 1973 | 911S | Other

Steering wheel and ignition key locks up if car is stopped when wheels are at any angle except straight

Tuesday 10/19/2021 | 1998 | Boxster | Electrical

83 944 Manual Steering Parts Availability

Monday 10/18/2021 | 1983 | 944 | Suspension

I have three problems with my 1983 944:1.   A while ago I had to remove the speedometer from the bezel to fix a broken odometer (for the second time) (as a note this car has the fuel consumption meter option.) I noticed that the light bulb for the O2 sensor error was not there. I am the only owner. The bezel was only removed previously by the local Porsche dealer back in the 90’s to fix the broken odometer. Is this lamp supposed to be there? How is it sup ...


The dashboard light " Triptronic Emergency Run " and the " Forth Gear Light " is lit as well. the car also is not shifting properly .

Monday 10/18/2021 | 2006 | Cayman S | Transmission/Clutch

I do not have a owner book to look up light. could you give me a little info on this problem ? I would also like to to purchase a owners book somewhere if possible.


How do I remove the speedometer?

Sunday 10/17/2021 | 1972 | 911S | Electrical

Engine stalls after idling for about 30s

Friday 10/15/2021 | 1989 | 944 | Fuel System | 96 views

After running very well for the 6 years I have owned it, my 944 engine now stops when it idles for more than a few seconds. A typical scenario was yesterday, I drove the car for about 1 hr on the highway, stopped for lunch a few km off the highway, had no issues. After lunch decided to take the scenic route home. Stopped at some construction and after idling for about 30s the engine stopped. For the rest of the way home the car would idle for less and less time and eventually became reluctant ...


My front windshield washer is not working but the wipers are. Any ideas.

Thursday 10/14/2021 | 2007 | Cayman S | Other | 3 views

Runs hot, cooling system over pressured, coolent over flows, head resurfaced and head gasket replaced. radiator and system flushed and cleaned.

Wednesday 10/13/2021 | 1984 | 944 | Engine | 24 views

Coolant system keeps pressurizing and blowing out coolant

Tuesday 10/12/2021 | 1999 | Boxster | Engine

Belt broke and engine overheated. replaced belt and coolant but engine would pressurize coolant system and start blowing out coolant from coolant tank cap after about 50 mi of driving. Otherwise engine running fine. Drained system and replaced water pump, thermostat, failed low fan speed resister for one radiator, and coolant tank. Used vacuum fill method to refill system but could only get 3.5 gal back into system. Should hold 4.5 gal. I only got the vacuum down to 0.8 bar before sucking the ...


When I bought this vehicle it was already 5 years old. The clutch needed replacing during the 1st week of ownership. That clutch had an engagement point at about 1/2 of the travel from the floor. I've just replaced that clutch with a new OEM Porsche clutch, and the engagement point is now at the top of the pedal travel. Is it possible to adjust the engagement point? 13 years later, I replaced

Monday 10/11/2021 | 2003 | Boxster S | Transmission/Clutch | 30 views

Suggestions please for a good book which provides an overview of Porsche models and years

Sunday 10/10/2021 | 2007 | Boxster | Other | 30 views

Is the position of the 981 front tow hook receiver adjustable?

Friday 10/08/2021 | 2016 | Cayman | Other | 24 views

I was attempting to install the hex nut of a license plate holder into the front tow hook receiver of my 2106 981, but was unable to get it to screw in. I inspected the situation and found that the tow hook receiver was not properly aligned with the access hole in the bumper; the center of the receiver hole was higher than the center of the access hole, creating an angle from the access hole to the receiver, which prevented the hex nut and tow hook threads from mating with the receiver thread ...


I have a 2014 Boxster (Base, manual), when I insert the key to start the car the ignition assembly is pushed in about 1/4". The car starts fine, what is the fix for this?

Friday 10/08/2021 | 2014 | Boxster | Electrical | 18 views

transmission shifter cable installation

Friday 10/08/2021 | 2001 | Boxster S | Cables and Controls | 48 views

I'm having difficulty installing new transmission shifter cables. I removed the old cables with great difficulty from the bracket on the passenger side of the tranny, have removed the old cables, and have properly routed the new cables. I have the Porsche tool to adjust the cable lengths in the shifter console, so I don't foresee any problem there. HOWEVER, I can't figure out how to press fit the cable housings back on to the bracket. Each housing has a keeper like nothing I have ever see ...


Looking for a good 914 2.0 engine builder in the SF North Bay or Bay Area. Any recommendations?

Friday 10/08/2021 | 1975 | 914 2.0 | Engine | 15 views

I would like to have my stock 2.0 liter rebuilt and I'm looking for a reputable engine builder in the North SF Bay Area.I would appreciate any recommendations.


Current wheels on 2013 Boxster are 8J x19, ET 57; 9.5J x 19 ET45. I have new snow tires that are 235/35 x 19 and 295/35 x 19 and I was planning to put these on Carrera rim: 8.5J x 19 ET 55; 10J x 19 ET 42. Do I need spacers on the front and rear or will these bolt on? Will this affect the ABS/systems?

Tuesday 10/05/2021 | 2013 | Boxster | Wheels and Tires | 15 views

I purchased snow tires on PCA Mart for my 2013 Boxster. The current OEM setup is 235/40 x 19; 265/40 x 19 (front, rear) on OEM wheels that are 8J x19, ET 57; 9.5J x 19 ET 45. The snow tires are 235/35 x 19 and 295/35 x 19. I was planning to also purchase Carrera rims for these: 8.5J x 19 ET 55; 10J x 19 ET 42. Do I need spacers on the front and rear (and what size) or will these bolt on? Will this affect the ABS/systems?  ( I presume these snow tires wil ...


Can the "information" stalk (lower left side of steering wheel) be retroactively added to this model?

Monday 10/04/2021 | 2000 | 911 Carrera | Electronics

I've been told that all of the early 996 cars came with the complete on-board computer, but not all of them came with the 4th "information" stalk installed. i.e. the electronics for average MPG, Temperature, etc are enabled but not accessible without the lever to call them up. Perhaps this is just wishful thinking on my part, but I thought I'd run it up the flagpole. Thanks, Dave C


Boxster will turn over but will not fire

Saturday 10/02/2021 | 2000 | Boxster S | Electrical | 120 views

Well I was installing a tune to my car that was supplied by one of the larger exhaust company’s. I was about half way through and it stopped the install and would not go into recovery mode. I have sent the ECU back to them and they say that they have installed the tune and everything is working just fine. It’s not! Now when I try to start the car it will crank over but will not start. The check engine light and the cruise control lights flash and there is some clicking coming from the engine/ ...


Can I use the sport/ sport plus from a wrecked Cayman to fit a 2012 Cayman R. If so where would I look.

Tuesday 09/28/2021 | 2012 | Cayman R | Performance Modifications | 69 views

Any suggestions, pros and cons related to Boxster model years 2011 thru 2014?

Monday 09/27/2021 | 2003 | Boxster | Other | 165 views

Recently sold my 2003 Boxster. I was the second owner and owned it the past 11 years. I am looking to upgrade to a newer Boxster model year 2011 thru 2014. Any thoughts, suggestions, pros and cons? Thanks


1995 993 with a slight "Ding" noise while at idle or in reserve

Monday 09/27/2021 | 1995 | 911 SC | Engine | 114 views

Hello, I have a 1995 993 with approximately 97K. In mint condition with all maintenance records intact. Over the past 6 month I have notice a slight "Ding" noise while at idle or in reserve. After further examination I noticed the fan slightly making contact with the shroud. I recently brought the car to a reputable mechanic that I have used here in Wilmington, NC and he claims that the fan has somehow become bent or warped because he notices a slight occillation. He also says that he ...


A big surprise the head liner is falling down in my 2014 Cayman

Saturday 09/25/2021 | 2014 | Cayman | Interior/Upholstery | 129 views

I didn’t think this would happen in this type of car. I have had many cars over the years and have never had that happen. How do I go about getting it fix. thanks Randy


944 overheating

Saturday 09/25/2021 | 1985 | 944 | Engine | 96 views

Have early 1985 944. Timing belt, water pump replaced by dealer at 46,000 miles. Have put 4000 miles since with no issues. Drove it a month ago. walked in front of car a few days later and noticed coolant on floor of garage on left side of vehicle. Took car out to evaluate issue. Normally, once temperature gauge moves beyond halfway mark, fans come on and gauge mark moves back to halfway mark and fans turn off. This time, gauge moves to 3/4 mark, both fans working to reduce temperature, but ...


What are common causes of loss of oil pressure on a 1984 944

Friday 09/24/2021 | 1984 | 944 | Engine | 78 views

981 Boxster S engine mount fault

Thursday 09/23/2021 | 2013 | Boxster S | Engine | 84 views

My '13 Boxster S has Sport Chrono and the active engine mounts. It just showed the PADM fault message. A quick search online suggests that the OEM engine mounts suffer from a tendency to internal electronic failure, that it is pretty much random and still an issue on later models. The part is pretty expensive as well. Obviously one solution is to grit the teeth and replace like for like at my nearest Porsche dealer (which is in Halifax Nova Scotia so not so close!). Has anyone with experience ...


944 and a Bicycle

Thursday 09/23/2021 | 1983 | 944 | Accessories | 114 views

I have bicycles that I would like to drive around with at least every week, if not more. My only car happens to be a high mileage but nice 944. I have been able to fit a bicycle in the hatch, but it's tricky to get in and out, and I would prefer a different way, for ease of use and to avoid damage to both the car and bicycle.Do you have a recommendation for transporting bicycles in a 944? (Roof rack, weld-on hitches, etc.) I only need to move one bicycle at a time. ...


Can you please recommend a car cover for a 2013 Boxster? I've tried several and found them to be inadequate for a variety of reasons. Thanks.

Tuesday 09/21/2021 | 2013 | Boxster | Accessories | 108 views

What is the difference between a Becker CDR 220 and CD 220 radio/CD?

Monday 09/20/2021 | 2002 | Boxster S | Cables and Controls | 105 views

I have a CDR 220 that was driving a standard speaker package in a 2001 Boxter 2.7 and I would like to replace a CR 220 (some character backlights are out) in my recently acquired 2002 Boxter S 3.2 with a Bose speaker option. I have not noticed any physical difference in the connections on the back or controls on the front and wonder what the differences are between the CD and CDR heads. A previous owner had apparently connected an aftermarket CD changer in the front trunk, having disconnected ...


Navigation / PCM 2.1

Monday 09/20/2021 | 2006 | Cayman S | Electronics | 90 views

Hello -The radio / navigation in my 2006 Cayman S has failed. I would like to keep everything looking stock, but I am having a difficult time telling the difference between a Bose and and non-Bose head unit. My Cayman came with P23: PCM 2.1 Extended Navigation. I have been told that I need a non-Bose unit - is this true?I have an opportunity to purchase a stock head unit that was tested and works - but the owner does not know if the unit is a ...


Anyone know where to get and OEM windshield for a 1991, 911 Turbo? It's made by Saint-Gobain and the brand name is Sekurit. It also has a built in antenna. So far I've had no luck locating one.

Sunday 09/19/2021 | 1991 | 911 Turbo | Body | 141 views

Sekurit brand windshield made by Saint-Gobain. That's the original equipment on the car.


Unable to adjust time on the cars clock

Sunday 09/19/2021 | 2006 | Boxster S | Electronics | 81 views

The adjustment knob for clock does not seem to work anymore


88 944S with Dim Instrument Cluster

Thursday 09/16/2021 | 1988 | 944S | Electrical | 189 views

I have a 1988 944S with only 38K miles. My problem is that my speedometer instrument cluster lights are very dull -- maybe 25% brightness, at best. Do the light bulbs need to be replaced? I was shown the inside of the dashboard speedometer cluster and the tiny lights are all connected by tiny wires and tiny bulbs. Any suggestions to correct this issue so I can drive my car safely at night?


Any comments on aftermarket alternators vs Bosch? They are a lot cheaper!

Wednesday 09/15/2021 | 2001 | Boxster | Electrical | 270 views


Ambient Air Valve

Wednesday 09/15/2021 | 1985 | 911 Carrera Cabriolet | Fuel System | 117 views

Hi Chris, The ambient air valve on my 1985 911 Euro is making a lot of noise. I cannot find the exact replacement valve on the Pelican Parts site, and their valve has different size hose fittings and locations. But their technical article mentions that the valve is not needed and could be eliminated by plugging off the hose. What are your thoughts about the removal, and how would I go about doing that? Or do you know where I coild find the exact replacement part that would fit with ...


How to lift the rear hydraulic tail fin to access the screws to remove the rear bumper

Wednesday 09/15/2021 | 2016 | Cayman GT4 | Body | 57 views

I want to remove/replace the rear bumper. It seems quite straight forward, but I'm being stopped by not being able to access the screws that sit underneath the smaller tail fin that on Caymans and Caymen S models, goes up and down automatically based on the speed. On the GT4, this fin is fixed in place. There must be a sequence of buttons to push that will raise it up. I do not have PSM on the car, if that makes a difference.Thanks,Nick ...