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ragslangSat Apr-10-04 01:20 AM
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"Alarm System goes off by itself"


          

If I set the alarm system (locking car) by remote the car will set off the alarm sometimes. If I lock the car by hand the alarm system works fine. Does anyone have an answer to this problem?

1996 Mark VIII
Black on Black

  

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Nightsky 93 VIIITue Sep-25-01 07:03 PM
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#1. "RE: Alarm System goes off by itself"
In response to Reply # 0


  

          

If you lock the car by hand, with the old style button not the electric one, then the alarm is not arming therefore no alarm malfunction... A bad battery is one cause (might test good but), other causes are worn ignition cylinder, and front hood sensor out of wack.



PICS of my car



Mike Gilbert
'93 blk/blk
Editor LOD newsletter
mailto:nightsky@texas.net

NightSky's Mark VIII Pages

  

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ragslangTue Sep-25-01 07:07 PM
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#2. "RE: Alarm System goes off by itself"
In response to Reply # 1


          

Where is the front hood sensor?

  

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DOHC4PT6Tue Sep-25-01 07:29 PM
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#3. "RE: Alarm System goes off by itself"
In response to Reply # 2


          

The hood sensor is on the left hand side next to the air box. You should be able to push it down also the trunk switch has been known to do the same thing that one is under the mat on the lid of the trunk.

chad,
1993 midnight opal

  

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Maane42Wed Sep-26-01 03:42 PM
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#4. "RE: Alarm System goes off by itself"
In response to Reply # 3


          

I had that problem for a while. I cleaned the battery post real good and it hasn't done it since (knock on wood). Its been over 2 months now.

  

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MkVIIIdriverWed Sep-26-01 10:17 PM
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#5. "RE: Alarm System goes off by itself"
In response to Reply # 4


          

The hood sensor is on the RIGHT side of the car. I had a similar problem, the battery tested bad so I had that replaced, alarm still went off, tried manually locking, alarm still went off, I eventually sorted through everything until I figure out my ignition lock cylinder is bad. For now, my alarm is unplugged behind the glovebox until I get that cylinder replaced. What was happening, is I would take the keys out of the cylinder, lock the car, and the alarm was going off about 5 seconds later.

1993 black/gray
42K miles

-Tom

1998.5 Silver/Blue Contour SVT

1993 Black/Gray Lincoln Mark VIII (FOR SALE)

  

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ChaosThu Sep-27-01 01:01 PM

  
#6. "RE: Alarm System goes off by itself"
In response to Reply # 5


          

I also had this problem, mine was a sticky door switch. Soaked it with WD-40 and cured it

Don Brown (Chaos)
1998 Mark VIII
Black on Black
77K and still going strong

  

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DOHC4PT6Thu Sep-27-01 07:56 PM
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#7. "RE: Alarm System goes off by itself"
In response to Reply # 6


          

Well on my car the hood sensor is on the left side inner fender right behind the air box. I cant imagine why they would put them in differant places on the same year car but ya never know.

CHAD,
1993 MIDNIGHT OPAL

  

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MkVIIIdriverFri Sep-28-01 12:51 PM
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#8. "RE: Alarm System goes off by itself"
In response to Reply # 7


          

The airbox is on the right side of the car. The sensors are on the right side in all 1993s. It is on the left when looking at the car from the front, but when you just say the left or right side for example, that is ALWAYS from looking forward standing at the back of the car.

1993 black/gray
42K miles

-Tom

1998.5 Silver/Blue Contour SVT

1993 Black/Gray Lincoln Mark VIII (FOR SALE)

  

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LuddyTue Oct-09-01 11:05 AM
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#9. "RE: Alarm System goes off by itself"
In response to Reply # 5


          

You say the Alarm is unplugged behind the glovebox. How do you get to the alarm there. Is it thru the glovebox? Help. My alarm went off 10 times yesterday, so to turn it off I have to disconnect the battery, then reconnect and run to start the car before the alarm goes off or I can't start it. Dealers don't seem to know what to do. Help.

  

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callouieTue Oct-09-01 11:39 AM
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#10. "RE: Alarm System goes off by itself"
In response to Reply # 9


          

If your alarm is going off that much, would it not be easier to lock the door 'manually' and then not have it armed?

I think the door ajar problem which is very common could be the culprit. Do you get a "Door Ajar" message when driving?

Calvin Louie
1994 Mark VIII
Dark Portofino Blue
List of mods available on my profile

Calvin Louie
1989 Porsche 928 S4 - Linen Metallic / Linen

  

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