We bought my '98 Chevrolet Tahoe used, and within a year it blew a turn-signal bulb in the rear. A really helpful auto-parts store guy informed me that this was the only common issue on this vehicle that he knew of (quite true so far; Bertha, the truck, has otherwise been very nicely reliable).
So I began to look at options. The store had LED bulbs which were listed with exactly the same part numbers. I tried two different kinds, and odd behavior resulted, lights coming on and staying off just wrongly; so I replaced with incandescent that time. I was also told that the circuit-board is often at fault, so I replaced that too. Eight months later or so, ditto.
So I dug, and I learned that there are special flashers designed for LEDs. At least at that time, if one asked for a flasher unit at this and the other two auto-parts stores in town, one received a flasher identical to my original: suitable only for incandescent. But if one carried a part number to the store, they had the newer one in stock. I did a check just now, most of the flashers now available appear to be the newer, LED-compatible sort.
However, this was not the end of the saga. Eventually that circuit board died partially on one side. So I ended up replacing it all on both rear sides, lock stock and barrel, with all-LED units, with their own new circuitry. Oddly, the reverse LED was an option, if I hadn't spent the extra US$13 I would have been expected to re-use my incandescent reverse bulbs. I spent the extra, and much better in all ways!!!
So I began to look at options. The store had LED bulbs which were listed with exactly the same part numbers. I tried two different kinds, and odd behavior resulted, lights coming on and staying off just wrongly; so I replaced with incandescent that time. I was also told that the circuit-board is often at fault, so I replaced that too. Eight months later or so, ditto.
So I dug, and I learned that there are special flashers designed for LEDs. At least at that time, if one asked for a flasher unit at this and the other two auto-parts stores in town, one received a flasher identical to my original: suitable only for incandescent. But if one carried a part number to the store, they had the newer one in stock. I did a check just now, most of the flashers now available appear to be the newer, LED-compatible sort.
However, this was not the end of the saga. Eventually that circuit board died partially on one side. So I ended up replacing it all on both rear sides, lock stock and barrel, with all-LED units, with their own new circuitry. Oddly, the reverse LED was an option, if I hadn't spent the extra US$13 I would have been expected to re-use my incandescent reverse bulbs. I spent the extra, and much better in all ways!!!
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