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07-20-2010, 09:06 AM
hello all,i have a 2002 trailblazer with the headlights pulsating with the idle including when idled up they pulse faster....any ideas?
07-20-2010, 02:16 PM
Check alternator output when it does this. Do the interior lites also pulse?
07-21-2010, 09:40 AM
does it all the time but have not checked to see if interior lights flicker as well,i will check that out and post.as for checking alt plug u mean to see if i am getting that same pulse thru the electric?
07-21-2010, 11:48 AM
See if the alt output also fluctuates.
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