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  #1  
Old 09-24-2002, 11:48 PM
David C Klasse's Avatar
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Join Date: Jan 2001
Location: Mission Hills in the City of San Diego
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Question Speedo Madness @ International Border

This is the weirdest thing... whenever I cross the border from US to Mex or Mex to US... while waiting in line close to the actual crossing, my speedometer goes haywire!! It flips up to 140 mph, and back down, and back up, and back down... it's crazy... Why is this happening!? Some sort of interference or what!?

THanks for any information!
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  #2  
Old 09-25-2002, 02:56 AM
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Location: Houston, Texas
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Talking cool!

Don't you believe in UFO's? I think they check for radioactive material at border crossings now -- some have these huge machines that the rigs drive thru. I'd bet that's what's causing the speedo mayhem.

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  #3  
Old 09-25-2002, 05:05 PM
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Probably a radiated imunity problem. Emissions in the spectrum somewhere is causing common mode voltages to occur that causes the instrument cluster to do wierd things. Maybe from a radar of some sort.

I heard of a case the other day where Ford had to buy back a customer vehicle (Navigator) this month because the cluster would totally reset on her way to work. Only on a certain side street and only when going a particular direction. I think this was in Texas somewhere.
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  #4  
Old 09-25-2002, 07:08 PM
I told you so!
 
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Location: Motor City, MI
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I doubt it's radiation detection devices... they're passive and don't emit anything.

Radar was my first thought, also. Next time you're there, the way to check for radar is to turn on your radio and listen for a short, harsh buzz that repeats itself every 10 secs or so. I used to hear it when I worked at Alameda NAS.

Never been to S. California. Is there a base nearby at the border?
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  #5  
Old 09-25-2002, 07:31 PM
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Location: Saugus, CA USA
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Camp Pendelon is near there, and San Diago has a Navy base. Maybe they're using a truck sized MRI. Or maybe its the Mexicans doing electronic evesdropping.
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  #6  
Old 09-26-2002, 08:42 AM
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I doesn't have to be speed radar. The case in Texas was a doppler weather radar.
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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)

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