1999-2007 General QuestionsGeneral questions related to 1999-2007 Super Duty trucks. If it doesn't fit the other categories, post it here. Gas engine discussion that pertains to all models is allowed. Specific gas engine questions should use the Gas Engines forum.
Reference my previous post a few days agao regarding how to adjust headlights. Last night I drove my F250 and my wife brought her Jeep Cherokee for comparison over to a dark parking lot. While I could adjust both beams up/down and side to side, I found that the right headlight had a distinctly different beam pattern compared to the left side. I stood in front of each headlight one at a time to see the effect of only one beam. The right beam pattern was actually two distinct bright patterns with one pattern higher than the other while the left beam was a much more even pattern similar to the sealed beam pattern from my wife's car. No amount of adjustment of the top two adjusting screws had any impact on the beam pattern.
Is there a third adjustment (beam pattern?)that requires a special tool or is there something else going on here?
Well the bulbs are hidden behind the small bulb reflector (not the main big reflector). It looks like the small bulb reflector distance to bulb might be adjustable but I don't know how that adjustment is made.
OK I will pull the bulbs and check. I ran into a similar situation with my 89 Mustang after replacing the fogged original headlights with repoductions and there was a problem with poor beam pattern. Had a mechanic inspect the headlights with an alignment tool and he told me that the filaments were the problem. I replaced them with Sylvania bulbs but no difference. I replaced those with different (better) headlight asemblies and the beam pattern was significantly better.
I was able to pull the right bulb (the one with a split beam pattern) There was no mfg. name on the bulb unless it is hidden by the socket. I was not able to get the left bulb out for some reason. It is very hard to get to.