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1997 - 2006 Expedition & Navigator 1997 - 2002 and 2003 - 2006 Ford Expedition and Lincoln Navigator Discussion

dash lights dim....

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Old Nov 11, 2003 | 10:06 AM
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corllrios
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Angry dash lights dim....

Help! dash lights have been dimming whenever idle is down with all lights on. When lights are off no dimming happens. Changed battery out; new alternator was put in Sept '03. Any thoughts?
 
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Old Nov 11, 2003 | 10:10 AM
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What year vehicle and what is the idle RPM?
 
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Old Nov 11, 2003 | 03:25 PM
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1997 Expedition; rpm's are at normal range for idle....1000-2000. had problems with the p017 code coming up awhile back and this site helped me to fix that. (hole in the vacumn line) Idle was really low because it was struggling to run, noticed the dash lights dimming then, but thought it was because of the lo-rpm's. rev'd it up while idling at a stop light and lights on dash got brighter. headlights don't seem to be affected so far. just dash lights; radio lights; etc.
 
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Old Nov 11, 2003 | 10:07 PM
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My 97' Expy EB 5.4l idles @ 600 in drive and 650 in park. Corllios, 1000 to 2000 is a big range @ idle. Are you sure we're talking about the same thing?
 
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Old Nov 12, 2003 | 08:48 AM
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Originally posted by cantman
My 97' Expy EB 5.4l idles @ 600 in drive and 650 in park. Corllios, 1000 to 2000 is a big range @ idle. Are you sure we're talking about the same thing?


sorry, goofed on that one. It idle's in at 600-700. 1000 when first starting in the morning to warm up. I noticed this morning headlights do dim alittle bit when rev'ing the engine.

any thoughts?
 
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Old Nov 13, 2003 | 02:38 PM
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The next thing I would do is a voltage check. I don't know the spec.
 
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Old Nov 13, 2003 | 03:12 PM
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....thanks and I'll do that, then get back with you and let you know. I was wondering if it was a voltage regulator? (don't know if that's on the newer cars but thats what was on the el camino)
 
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