One other place to make sure you have good contact is the bulbs themselves. If
the car sits a lot, especially in humid areas, the bulbs and the bulb housings
can get corrosion and not get a good ground. Pull the bulbs all out and follow
the same procedures as for the rest of the grounds. Even if they were ok, if
they are only making marginal contact, but still working, it can place extra
strain on the electrical system. So even if you get it fixed by just cleaning
one contact, still go through and do the rest.
Good Luck
John
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