erock198
Full Access Member
I'm about to swap out the turn signal relay for the second time in a year in my 03 XL Denali. This one does not work when cold. I got it from Advance auto. My question is Is there a better one that will last longer?
Flasher relay 03 XL Denali
- Thread starter erock198
- Start date
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treehan77
TYF Fiend
Have you checked the lighting block by the rear wheel? Commonly corroded and mimics flasher issues intermittently
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erock198
Full Access Member
No I have not. I do know that after I changed it last time everything worked until just recently
treehan77
TYF Fiend
Swapping out the flasher "fixed" mine for a day until it stopped working again, cleaning up the light in block was the fix that kept it working after that
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erock198
Full Access Member
ok where is it? I know cars and trucks but not sure what you're talking about
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erock198
Full Access Member
Last edited:
treehan77
TYF Fiend
Mine had one nasty corroded pin in he connector, cleaned it up and sprayed it with some cleaner, been fine for months now
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erock198
Full Access Member
ok the video says push the plugs then pull out. I"ll try one more time but I'm having trouble
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erock198
Full Access Member
ugh now one side of the block is hanging off. I think I need a lift. I think the terminals are indeed corroded
treehan77
TYF Fiend
You're supposed to push the CLIP of the plug in them pull
treehan77
TYF Fiend
Are you replacing the lighting block with a new one? Unbolt it and it'll come off, you might have to whack it a few times or pry a little bit. I'd recommend you replace - in my case I only had one corroded pin so I didn't. But I don't live where the salt the roads or anything either. If it still doesn't work right after you replace this part, I'd get the factory OEM flasher from Amazon or something, not from local auto store. It'll be cheaper anyway and it's the real brand. But I bet your block replacement will have you going good.
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erock198
Full Access Member
Light block was clean no corrosion whatsoever. Must be a cheap flasher from advance auto
treehan77
TYF Fiend
Like i said, get the oem delco one from amazon, it's cheaper than advance auto anyway.
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erock198
Full Access Member
oem delco flasher? yeah I'll do that.
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erock198
Full Access Member
...ok I read it. All pins looked good. I'll go with the flasher first though the block is easier to replace
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erock198
Full Access Member
treehan77
TYF Fiend
did you get it working
