Turn signal flasher issue
#1
Turn signal flasher issue
So I bought an NOS turn signal flasher for my '72 Supreme from ebay and when I plugged it in today to check it, it works, but not like it should. The directional signals work fine, but it's the hazard lights that are the issue.
When I turn on the hazards, it takes a minute for them to come on, and when they do, they fluctuate between blinking fast and slow, and they also fluctuate from bright to dim. Also, there is no "clicking" sound.
I noticed that when I plugged it in, it didn't feel like it was seated quite right, and I also noticed that it's just a tad bigger in diameter than the one that was installed, thus not allowing it to fully seat.
I'm thinking that's why the hazards aren't working right...am I correct?
And just to confirm, when I re installed the old flasher, no issues whatsoever.
Thoughts?
When I turn on the hazards, it takes a minute for them to come on, and when they do, they fluctuate between blinking fast and slow, and they also fluctuate from bright to dim. Also, there is no "clicking" sound.
I noticed that when I plugged it in, it didn't feel like it was seated quite right, and I also noticed that it's just a tad bigger in diameter than the one that was installed, thus not allowing it to fully seat.
I'm thinking that's why the hazards aren't working right...am I correct?
And just to confirm, when I re installed the old flasher, no issues whatsoever.
Thoughts?
#2
Which flasher did you replace? The hazard flasher is completely separate from the turn signal flasher. The one on the fuse box is for the hazards. The turn signal flasher is on a pigtail behind the dash, outboard of the steering column.
#5
Dave - Did you actually validate the supposed NOS turn signal flasher is in “fact” the correct part number for an NOS turn signal flasher for your car? (Assuming you have the correct OEM turn signal flasher receptacle & wiring harness). Possible a PO fabricated a replacement.
#6
I reached out to the group here on the forum (See link below), but I couldn't get a definitive answer, so I rolled the dice and went with my gut. Both the one that's in the car now and the one I purchased carry the same "552" designation, so (unless I'm wrong), they're the same, right? If not, can you shed some light as to which direction I should go?
https://classicoldsmobile.com/forums...y-know-159592/
#7
#9
#10
According to Charlie's reply in my other thread, this is the correct hazard flasher
https://www.ebay.com/itm/NOS-64-65-6...-127632-2357-0
...but is it??🤔
https://www.ebay.com/itm/NOS-64-65-6...-127632-2357-0
...but is it??🤔
#11
What is the exact part number as indicated on the flasher you want to replace (I'm not sure replace is the correct word since it sounds like you just want a backup)? There should be a part number on the flasher which is currently in the car. And, again, for clarity we are now talking about the "hazard" flasher and not the "turn signal" flasher correct?
#12
According to Charlie's reply in my other thread, this is the correct hazard flasher
https://www.ebay.com/itm/NOS-64-65-6...-127632-2357-0
...but is it??🤔
https://www.ebay.com/itm/NOS-64-65-6...-127632-2357-0
...but is it??🤔
As per Charlie's post -
Turn signal 383627, hazard flasher 3883794.
As suggested in the previous thread, here it is listed in the parts catalog.
http://www.gmpartswiki.com/getpage?pageid=89393
#14
Dave - A helpful bit of advice for future reference. I recognize you've already been provided these links (in the previous thread) and depending on your comfort using a Web Browser and navigating .pdf files (which is simple stuff), I suggest you download the 1975 Parts Catalog so you have a copy of it on your computer. It's really big, but not to worry, it will download fine for you. This should/can be one of your best one-stop shops for part numbers. There are others, but you should have a local copy of this Parts Catalog. I guess there are Parts Catalogs and Illustration Catalogs - download each one for your car. You'll save a lot of time and they're extremely helpful. Good luck!
If you have any questions regarding how to download the file for the parts catalog, let me know I'll help you.
https://classicoldsmobile.com/forums...atalog-129883/
If you have any questions regarding how to download the file for the parts catalog, let me know I'll help you.
https://classicoldsmobile.com/forums...atalog-129883/
#15
Thanks for the help Norm and I'll look into the parts manual. And yes, I'm looking for a backup. My concern is that the 3883794 is rectangular, and all the diagrams I've seen show the hazard flasher as being round🤔
#16
My Point: MANY vendors sold replacement (cross-referenced) flashers during the time period your car was in production and directly after production. I owned a 1967 442 and a 1972 442 - both in the time periods of 1969 through 1981. Flasher units were a dime a dozen and all automotive parts stores sold them from a multitude of companies - they're like spark plugs, radiator caps, etc. How does Dave know if the hazard flasher currently located in his 1972 vehicle is the OEM or a replacement part? That question still has no answer.
#17
https://www.google.com/search?source...&bih=963&dpr=1
http://www.2040-parts.com/signal-sta...83794--i60589/
#19
There should be a part number on the hazard warning flasher located in your car currently. I don't know if it's round or rectangular. I do know for a fact that during the period of production, MANY vendors sold cross-referenced part numbers which may or may not be the OEM part and/or part number. I'm not looking at your current flasher, I can't see your current flasher, I'm not addressing any part numbers on your current flasher, you haven't stated any part numbers on your current flasher; albeit, I can't see your current flasher so I cannot validate what you're looking at.
My Point: MANY vendors sold replacement (cross-referenced) flashers during the time period your car was in production and directly after production. I owned a 1967 442 and a 1972 442 - both in the time periods of 1969 through 1981. Flasher units were a dime a dozen and all automotive parts stores sold them from a multitude of companies - they're like spark plugs, radiator caps, etc. How does Dave know if the hazard flasher currently located in his 1972 vehicle is the OEM or a replacement part? That question still has no answer.
My Point: MANY vendors sold replacement (cross-referenced) flashers during the time period your car was in production and directly after production. I owned a 1967 442 and a 1972 442 - both in the time periods of 1969 through 1981. Flasher units were a dime a dozen and all automotive parts stores sold them from a multitude of companies - they're like spark plugs, radiator caps, etc. How does Dave know if the hazard flasher currently located in his 1972 vehicle is the OEM or a replacement part? That question still has no answer.
#22
#23
Signal-Stat, Buss, Ideal and Littelfuse were all OEM suppliers to GM (and everybody else). 552 is simply a flasher spec number same as brake shoes have. As in, say, #160 brake shoes fit a lot of cars across a lot of manufacturers.
If you can find one in OE packaging, great, but one from the parts store will work fine.
If you can find one in OE packaging, great, but one from the parts store will work fine.
#24
Signal-Stat, Buss, Ideal and Littelfuse were all OEM suppliers to GM (and everybody else). 552 is simply a flasher spec number same as brake shoes have. As in, say, #160 brake shoes fit a lot of cars across a lot of manufacturers.
If you can find one in OE packaging, great, but one from the parts store will work fine.
If you can find one in OE packaging, great, but one from the parts store will work fine.
FLASHER, Turn Signal, AC Delco ** Replaces original GM p/n 383637, 3883794 and 10041073 ** - #C-2892-201 - National Parts Depot (npdlink.com)
#25
#26
Merry Christmas - happy you found the NOS which works.
#27
#28
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