Notices
928 Forum 1978-1995
Sponsored by:
Sponsored by: 928 Specialists

Car wont run with FULL Beam on!!

Thread Tools
 
Search this Thread
 
Old 10-19-2003, 03:13 PM
  #1  
Jack in Malta
Instructor
Thread Starter
 
Jack in Malta's Avatar
 
Join Date: Jul 2002
Location: Malta
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default Car wont run with FULL Beam on!!

Hi

I have a 1982 Euro 928S Manual 5 Speed.

Car has been running quite well recently but noiw its god a crazy problem.

I can drive at night but if I turn on the Main Beam for the headlights the engine stops dead, as soon as I turn them off the car will run fine

Can someone please let me know where tghis could be coming from,

Any help appreciated

BTW all fuses and relays are fine, contact clean Earths OK
Old 10-19-2003, 03:54 PM
  #2  
Erik - Denmark
Burning Brakes
 
Erik - Denmark's Avatar
 
Join Date: Apr 2002
Location: Denmark
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts
Default

Jack,
Sound like a short cut - What happen when you turn on the light without the engine running?
Old 10-20-2003, 03:26 AM
  #3  
Jack in Malta
Instructor
Thread Starter
 
Jack in Malta's Avatar
 
Join Date: Jul 2002
Location: Malta
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default

When I trun on the lights without the engine running they come on normally
Old 10-20-2003, 04:48 AM
  #4  
Erik - Denmark
Burning Brakes
 
Erik - Denmark's Avatar
 
Join Date: Apr 2002
Location: Denmark
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts
Talking

Jack,
Do you have UFO's or other magic things in Malta?
Old 10-20-2003, 06:54 AM
  #5  
Jack in Malta
Instructor
Thread Starter
 
Jack in Malta's Avatar
 
Join Date: Jul 2002
Location: Malta
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default

Not yet but I am working on it.
Wht cant my 928 have normal problems.

I was out on Saturday Night, on the way back in an unlit area, turned on the main beam and the car cut out and stopped. - Totally bizarre.
Old 10-20-2003, 09:09 AM
  #6  
Erik - Denmark
Burning Brakes
 
Erik - Denmark's Avatar
 
Join Date: Apr 2002
Location: Denmark
Posts: 881
Likes: 0
Received 0 Likes on 0 Posts
Default

Jack
Ufo'er!
You have to search, most properly you have a short-cut in one of the wires up to the lamp, when not driving no short cut, but when driving (vibrations) you have the short-cut
Remove the cover in front of the front wheels and check the wires carefully, and you will 'get the answer'
Old 10-20-2003, 06:13 PM
  #7  
Jack in Malta
Instructor
Thread Starter
 
Jack in Malta's Avatar
 
Join Date: Jul 2002
Location: Malta
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default

Hi Eric

What I do not understand is why this stops the engine, the lights work both running and stattionary, the car always cuts out when you either turn on the full beam or flash the fiull beam, it doesnt matter if the car is moving.
Old 10-20-2003, 06:14 PM
  #8  
Jack in Malta
Instructor
Thread Starter
 
Jack in Malta's Avatar
 
Join Date: Jul 2002
Location: Malta
Posts: 139
Likes: 0
Received 0 Likes on 0 Posts
Default

Actually from further tests, if you turn on the Main beam of the lights the power to the coil stops.

Where is the relationship between these?
Old 10-20-2003, 06:17 PM
  #9  
Red UFO
Nordschleife Master
 
Red UFO's Avatar
 
Join Date: Jul 2003
Posts: 9,613
Likes: 0
Received 0 Likes on 0 Posts
Default

Jack,

When this happens have you looked up thru the sunroof to check for a UFO? Notice any 'missing time? Scoop marks, 1/2 your face sunburned?

It can happen!
Old 10-20-2003, 06:51 PM
  #10  
User 4221
Addict
Rennlist Member
 
User 4221's Avatar
 
Join Date: Jun 2001
Posts: 7,031
Received 47 Likes on 29 Posts
Default

Jack,
This sounds like one of the following:

Earth Ground issue in the front of the car
Corroded ground wire to coil
weak connections at coil.

All this indicates to a very poor electrical connection somewhere that is load dependent. This is not a short circuit, but an open circuit driven by electrical high load.......... Probably where they share an earth ground



Quick Reply: Car wont run with FULL Beam on!!



All times are GMT -3. The time now is 11:50 AM.