20 Most Recent 1991 Porsche 911 Questions & Answers

Try replacing the fuel filter.

Start by checking remote switch. Test to see if there is power at the spoiler motor. If there is power getting to the motor check for bad ground. Finally remove the cable that drives the spoiler up and down and apply 12v dc to the motor. If the motor turns check to see if you can turn the cable without the motor and that the spoiler moves. I all power checks out and the spoiler won't move by turning the cable, the gearing that the cable attaches to is most likely damaged.

exhaust possibly,or radius arm bushes,call a mobile mechanic for a hands on look at problem this sort of thing is nigh on impossible to diagnose from a description .

If it's brakes or clutch it dot 3 brake fluid.

There should be a cap you can lift at the base of the stalk, it will or will not show a nut to loosen.

Remove the spark plugs and put a spanner on the crank nut, if it still will not turn, you have a seizure and rebuild is required.

You have a bad battery. When the battery is going bad there will often be enough power to power lights / accesories but cranking the engine requires much more power and the battery doesn't have enough juice to power the starter.

hello thereI looks like your oxygen sensor,Try to disconnect and then see what the car does?Let me know.You may need to adjust the fuel mixure,seem it is running a little rich that is why the car in idle goes up and [email protected]

For Porsche 911 1991 !! It looks like that your flapper stays closed on driverside. These flappers are controlled by servos hidden in front of windshield under the hood. There is a plastic cover. Take it off, there you see the servos. Start the car and move the levels that control the hot and cold direction up or down. You will see the servos move. If for any reason one does not move it might be the one which is defect! That could solve your problem! Got to John's Porsche 964 Web Webpage it tells you what and how to do!!

hello there
in your fuse box is DME relay this one is your fuel pump relay..look for it

proporsche

let me know
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You can always close the top by pulling it up by hand. It pulls hard but you can pull it up and it might require two peaple, and then latch it down. Fuses fail to connect in the fuse panel and the switchs fail as do the motor in the pump that makes the top move. Your right also that if the car doesn't sense that the e= brake isn't on or the is'nt moving it'll not work the top either. Many fuses have to be good for all the systems that interlock the top to work the most common fuse to blow is the cigar lighter fuse as peaple plug in things that short out oftern.

there is a connecting clip that connects wiper arm to motor. most are made of plastic. drop by a auto parts store they may have them in stock. since you have a expensive car. i suggest buying a haynes book on it

hello there
Is your Porsche coupe?
Let me know.If yes it is all mouted with phillips screws.The panels.

proporsche
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HI the problem you are having is with the air bag system they have a certain time limit before they need servicing so all you need to get done is have the air bag system serviced they will change some sensors and also the gas canistors if needed, not getting this done will mean your air bags wont work if you ever have an accident,

this needs servicing soon as its is a safety feature for the car their is no way of resetting it without having the air bag system fully serviced

let me know if you need further assistance ok

hi you will need dexron 2 (II) for the power steering, modular? if you mean the seat belt pre-tensioner this is found under the seat, and air bag..the control module for the air bag is below the steering wheel under the dashboard....hope i got these right, if not can you elaborate on the modular???? as this means round in the uk, eg modular type frame work=tubed frame..hope this helps if not just get back to me

there arent no oil lines trany lines ya ur idle prob is ur timeing if there distributor needs advanced even if no distributor ur timing need advanced air feul reacho os off to much are not enough feul in each cylinder when they combust

How low does it get. This is normal. The oil pressure will go a little lower as the engine and the oil warms up.