If you bought those from Amazon or Ebay, they are probably counterfeit. If you got those from a reputable retailer, that's unfortunate. I've never had an issue with Delco
@matthewwhite4799
7 ай бұрын
I bought them from advance but I will not run something that ain’t consistent. In my book it’s a bad product.
@Ittybittythetwofacedkitty
7 ай бұрын
Ain’t Ain’t a word
@matthewwhite4799
7 ай бұрын
Ain’t that right
@DUCKSAREEVILLLLLLLL
2 күн бұрын
I'm hearing that AC Delco's iridium plugs are made by NGK. Iridium plugs were pioneered by Japan.
@matthewwhite4799
2 күн бұрын
probably right just a different factory and cheaper designed plug 🤔 maybe
@DUCKSAREEVILLLLLLLL
Күн бұрын
@@matthewwhite4799 I've never had a problem with AC Delco plugs. Most have been made in The U.S., including the double platinum plugs I just bought.
@matthewwhite4799
Күн бұрын
@DUCKSAREEVILLLLLLLL Me either till recently seems like most of the parts have been going down hill and mooge is another one and a couple years ago they started offering a cheaper and a more expensive part in mooge which i have never saw before but anything to sell a part i guess.
@pingpong9656
7 ай бұрын
Those plugs have been used and returned. I just purchased a set of ACDELCOs and they are mint... no problems.
@nickolasedmunds
2 ай бұрын
Fair share of problems with NGK also. Switched to Ac Delco copper plugs in a car overall good not a problem yet. NGK G Platinums fail to ignite and cause misfires on old cars especially if they burn oil. NGK nope Denso Japanese or AC Delco as a slightly hotter plug. Nothings better than a conventional plug and shiney does not matter 😂. Simplicity does.
@matthewwhite4799
2 ай бұрын
Seems like the new stuff is going down hill for awhile now.
@ding9633
7 ай бұрын
Had a delco plug completely rust in two. It sounded like an exhaust leak.
@matthewwhite4799
7 ай бұрын
That’s the first I’ve heard of that happening
@cayankeelord3730
7 ай бұрын
I've used NGK for 50+ years, from racing dirt bikes when I was a kid, my road bikes, outboard motors, chainsaws, my cars and trucks. Pretty much everything. Never had a problem. The only thing I can't use them in is my 1936 Caterpillar model 22 dozer. they don't make them that size, so I still have the Edison brand plugs in it that are about 70 years old. You can actually disassemble, rebuild and reseal those with refractory cement. Who knew? Couldn't believe it when I took those out and looked them over when I bought the machine 25 years ago. Previous owner up-graded the center electrode with a TIG welding electrode.
@matthewwhite4799
7 ай бұрын
Now that’s way more experience than I have. I put that in my 2002 Chevy suburban and they looked good and are still running. Only thing I can guess is they are using different manufacturer to produce them again because these was very poor quality plugs advance sold me. 16 plugs total I returned
@BehindTheCounter_TFSO
7 ай бұрын
From the video, those plugs show signs that they had been installed in the vehicle at one moment in time and then returned them back to the store. For name brands like AC Delco, you never want to buy online as there are a lot of counterfeit parts out there. Also, you never want to buy from a retail store (AZ) due to their no-questions-asked return policy. For a brand like this, you want to buy from an ethical Auto Parts store. You never want to install a plug that the box has been opened or dropped. The porcelain might have cracked, and you will never know until you install it, resulting in a misfire. This is the reason why you pay an authorized professional shop for their experience and knowledge.
@matthewwhite4799
7 ай бұрын
The funny thing is I have been running a subaru garage for over 20 years retired now and just work on my own stuff
@workingcountry1776
7 ай бұрын
Delco plug failed quickly and damaged my 3800 Buick v6 and another brand new ac delco plug fell apart in my NEW 350. Damaged the cylinder wall and piston rings. Really upset. Checked and last several years they've been Chinese! My Motorcraft plugs in my Ford are USA.... idk for sure but I think post bailout gm is the worst automaker on earth
@matthewwhite4799
7 ай бұрын
That would definitely pee me off too and thanks for the info
@glennhartwig5977
7 ай бұрын
Those are counterfeit plugs!
@harryheinrichs8206
7 ай бұрын
I find AC Plugs have way to much resistance, fire works along outside of wires.
@matthewwhite4799
7 ай бұрын
Thanks for the info.
@BloodStainedTear
7 ай бұрын
most likely somebody instead of diagnosing the problem they started firing the parts cannon at it well plugs weren't it let's return these and reload with something else and if you got them from Autozone expect anything since they never check anything, they just throw it back on the shelf ask me I ended up with somebodies caliper core one time
@matthewwhite4799
7 ай бұрын
I have had that happen a lot but these plugs looked like old worn out and dirty machines assembled them the worst is getting the wrong parts even though the numbers match
@bubbles8491
7 ай бұрын
Had a bad experience with AC Delcos as well. Got em from Rock Auto for 2 of my Saabs as OE was ACs. Got misfires as soon as i installed em. Put old plugs back in and misfire went away. Returned them back to Rock Auto, gone to Napa and got myself NGKs.
@serafinsilva1055
7 ай бұрын
They look counterfeit.
@matthewwhite4799
7 ай бұрын
I bought 16 total from advance and advance has switched a bunch of parts so probably is counterfeit. I don’t buy from rock auto either cause there parts are junk.
@dandiegidio7729
7 ай бұрын
@@matthewwhite4799I've been getting parts from rockauto for years and never had one fail, from engine parts to brakes. You just have to use your brain when ordering.
@thisisyourcaptainspeaking2259
7 ай бұрын
The Delcos are made by ngk, I do believe.
@matthewwhite4799
7 ай бұрын
I don’t think we will ever know who makes ac delco. I’ve seen anywhere from ngk , Delphi to auto lite who knows?
@thisisyourcaptainspeaking2259
7 ай бұрын
@@matthewwhite4799 Right, there's ACDelco, AC Delco, then a host of counterfeit parts masquerading as name brand so yeah, gotta keep a close eye on everything and trust nothing.
@workingcountry1776
7 ай бұрын
No. NGK are made in Japan generally. AC Delco are Chinese crap
@thisisyourcaptainspeaking2259
7 ай бұрын
@@workingcountry1776 I'm holding an acdelco 12568387 in my hand that says acdelco on the ceramic and ngk stamped on the shell.
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