Serious Problem - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Viper5 · 09-03-2009, 01:09 PM

I have a 2000 Boxster S and have owned it for approx 8 mo. I have never had any electrical problems personally with the car, but yesterday something really bizarre happened. My roomates were home and they told me that all of a sudden, they could hear a noise emitting from the vehicle. It sounded like a fuel pump and was louder around the cap area. Then they said that my lights turned on in rear and front. Also, the trunk door came unlocked and the main doors as well. Then the car had a constant horn. It was not an alarm sound but just the horn constantly on. He was able to disconnect the battery since the doors came unlocked and left it like that. Today I shut the trunk back and reconnected the battery and as soon as I did the trunk came open again. About a minute later, I heard the same noise which appeared to be the fuel pump. It has a clean carfax and 110k miles. I also have never let rain get inside. I have the only key so I know nobody was able to mess with anything.

What is the most likely scenario here?

blinkwatt · 09-03-2009, 01:18 PM

Ignition switch going out? I've seen them cause other funky electrical problems. And that fuel pump sound... are you sure it's not the motors for the interior cabin that you normally hear when you turn the car over?

Viper5 · 09-03-2009, 01:35 PM

its not the same as when i first turn off the car and lets the fans run. Its coming from around the gas cap.

yimmy149 · 09-03-2009, 04:01 PM

Get the battery tested

fatmike · 09-03-2009, 05:11 PM

Does the key work normally? If you put it in the ignition and turn it, does it start the car without anything weird? Do you have to "wiggle it" to put the key in or take it out? Once you start the car, do you have to "adjust" the key?

If you have any of the above symptoms, I would suggest you check out the ignition switch. When mine went, the radio wouldn't work sometimes, the blower would work but not the AC, random weird stuff, etc. It was an inexpensive fix. Maybe $150 installed.

Viper5 · 09-03-2009, 07:28 PM

Havent started it since im afraid of all the fuel pumping in could have flooded something. If it was the fuel pump, would it be safe to start it? I dont want to do something irreversible. As far as turning power on, just reconnecting the battery does weird stuff without the use of the key. The key itself is fine and just turning on power seems to be ok.