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No Low beam lights. Help

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Old Aug 8, 2003 | 01:24 PM
  #1  
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JJz400
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No Low beam lights. Help

I am the proud new owner a 99 F350 crew V10. My first new truck in a long time. I'm having trouble with the lights. When the switch is off Head lights on. When turned to park lights head lights and park lights on. When turned to lights, Park lights on no low beam but have high beams. I put in new bulb and the same thing. Does any one know where the dimmer switch relay is? Next thing is

Washed the dust off motor and took for a drive. the batt. light came on and the volt. gage is still showing in the half way mark.I think it is the Alt. but wanted to check with others.

Thanks for any help.

And it just turned the 204,000 mark.
 
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Old Aug 9, 2003 | 02:59 PM
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No Low beam lights. Help

Sounds like the headlight switch is coming apart inside to me.
mike
 
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Old Aug 9, 2003 | 03:56 PM
  #3  
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No Low beam lights. Help

Bad Alternator was the Batt. dash light . Still looking for low beam trouble.
 
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Old Aug 9, 2003 | 07:49 PM
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No Low beam lights. Help

you have a serious cross short I'd get a wiring diagram from ford and start chasing wires. Good luck
 
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Old Aug 9, 2003 | 09:11 PM
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No Low beam lights. Help

From looking at the wiring diag it has to be your high low switch ..


Oh and don't ever wash the top of these motors...Coils, plugs, poof
 
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Old Aug 11, 2003 | 01:18 AM
  #6  
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No Low beam lights. Help

Thanks for the info. Where is that switch at? is it in the turn signal side of the colum?
 
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Old Aug 11, 2003 | 05:54 AM
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No Low beam lights. Help

yup the call it a multifunction switch
 
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Old Aug 11, 2003 | 09:23 AM
  #8  
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No Low beam lights. Help

Originally posted by 99f350sd



Oh and don't ever wash the top of these motors...Coils, plugs, poof [/B]
Huh?? Then what is the proper way to clean the engine??
I have always hosed the engine compartment down to keep it clean!!

Always willing to learn,
Lenny
 
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Old Aug 11, 2003 | 12:16 PM
  #9  
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No Low beam lights. Help

The plugs are deep down in the head. These holes hold water and will cause corrosion and shorting problems....
 
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Old Aug 11, 2003 | 08:53 PM
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No Low beam lights. Help

Originally posted by 99f350sd
The plugs are deep down in the head. These holes hold water and will cause corrosion and shorting problems....
Thats true, after spraying it down I take the air hose and blow the engine off, so I have never had that delima!!

Lenny
 
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Old Aug 11, 2003 | 09:10 PM
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No Low beam lights. Help

I don't think so!!! unless you take the coils out you'll never know. Do you know what happens when aluminum and metal corrode together because of water. How about remove your plugs and take the threads with it...Not fun. I won't do it..
 
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Old Aug 12, 2003 | 10:11 AM
  #12  
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No Low beam lights. Help

Originally posted by 99f350sd
I don't think so!!! unless you take the coils out you'll never know. Do you know what happens when aluminum and metal corrode together because of water. How about remove your plugs and take the threads with it...Not fun. I won't do it..
Well, to be honest, I never gave it a thought, when I change plugs I always put some thread lube for sparkplugs on the threads to keep that sort of thing from happening. But darn, these motors cant be that sensitive to water can they?? I see guys mud bogging them and the motor compartment is covered with mud and water and they wash them off with no problems!
Is this a problem with these engines??

Always willing to learn,
Lenny
 
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Old Aug 12, 2003 | 10:41 AM
  #13  
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No Low beam lights. Help

Sounds like a bad ground. When parking lights are on, and the headlights come on, are they dim?

ak
 
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Old Aug 12, 2003 | 12:55 PM
  #14  
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No Low beam lights. Help

You can do what you want I won't get any water anywhere near the top of the engine
 
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Old Aug 14, 2003 | 10:26 PM
  #15  
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No Low beam lights. Help

Well this is what I found. First off it had some 85/100W bulbs in it one had came out and melted down the down the back of the reflector untill it hit frame work. With those High watt bulbs in it it fried the low beam part of the multifunction switch. After a new switch and some lower watt bulbs all is well now.
 
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