Spark plug
- Thread starter daleferd
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A/C Delco!! In other words their are no good alternatives then OEM when it comes to ignition products
I beg to differ as to quality IMHO you can't beat NGK or Denso.
There's not much difference in the world of basic platinum plugs. Bosch has a rebate right now so I'd just go for that.
maybe NGK built to OEM spec but nothing beats OEM plugs. I have replaced way to many plugs because of non oem that set CEL lights and misfires. The OEM plugs went 70k and would likely go another 30k. Why risk it on non OEM. Delco in GM, Motorcraft in ford, and Mopar in Dodge. It's a sure winner everytime
When I asked about this last year, consensus was that NGK makes the ACDelco plugs. I put NGK Iridium IX in both my cars, no complaints.
I have a 99 Sierra with the 5.3L V8 and I replaced mine this past winter with AC Delco iridium plugs. I've been happy with them. No problems
I also replaced the wire set at the same time.
I bought everything at advance auto parts using coupon codes online.
I also replaced the wire set at the same time.
I bought everything at advance auto parts using coupon codes online.
Originally Posted By: dparm
There's not much difference in the world of basic platinum plugs. Bosch has a rebate right now so I'd just go for that.
I used to feel that way until I bought some Bosch double plats for my mother's car because they were nearly free after rebate. They ate themselves in 1,000 miles causing misfire under hard acceleration at the end of that 1,000 miles. I made sure they were properly gapped, they were properly installed and the wires/coil pack are both new. Haven't had any issues before then, or since then, with spark plugs. They had the obvious signs of overheating but are within the heat range for the vehicle; I still don't really understand what went wrong.
There's not much difference in the world of basic platinum plugs. Bosch has a rebate right now so I'd just go for that.
I used to feel that way until I bought some Bosch double plats for my mother's car because they were nearly free after rebate. They ate themselves in 1,000 miles causing misfire under hard acceleration at the end of that 1,000 miles. I made sure they were properly gapped, they were properly installed and the wires/coil pack are both new. Haven't had any issues before then, or since then, with spark plugs. They had the obvious signs of overheating but are within the heat range for the vehicle; I still don't really understand what went wrong.
not all GM's had delco as OEM. as an example, NGK was OE in saturn S series.
Original is almost always best .
There are no secret plugs that will outperform excellent stock ones.
Avoid Bosch unless it came with them.
There are no secret plugs that will outperform excellent stock ones.
Avoid Bosch unless it came with them.
Originally Posted By: mgm13
I beg to differ as to quality IMHO you can't beat NGK or Denso.
Just for your info, NGK makes the Iridium plugs for ACDelco and Delphi makes the ignition
wires for ACDelco. My factory ignition wires had both ACDelco and Delphi printed on them.
I beg to differ as to quality IMHO you can't beat NGK or Denso.
Just for your info, NGK makes the Iridium plugs for ACDelco and Delphi makes the ignition
wires for ACDelco. My factory ignition wires had both ACDelco and Delphi printed on them.
Originally Posted By: Galo
Originally Posted By: mechtech2
Avoid Bosch unless it came with them.
Could you please explain that statement.
Thank you.
What is there to explain?
Saying that you should avoid Bosch "spark plugs" unless it came with them is more detailed, though.
Most pros and mechanics avoid Bosch plugs in non stock applications. This is known by experience.
Originally Posted By: mechtech2
Avoid Bosch unless it came with them.
Could you please explain that statement.
Thank you.
What is there to explain?
Saying that you should avoid Bosch "spark plugs" unless it came with them is more detailed, though.
Most pros and mechanics avoid Bosch plugs in non stock applications. This is known by experience.
Originally Posted By: cp3
When I asked about this last year, consensus was that NGK makes the ACDelco plugs. I put NGK Iridium IX in both my cars, no complaints.
This is what I've heard as well. I'd say go with the AC Delco's or NGK.
When I asked about this last year, consensus was that NGK makes the ACDelco plugs. I put NGK Iridium IX in both my cars, no complaints.
This is what I've heard as well. I'd say go with the AC Delco's or NGK.
With only 70k miles on them those plugs are fine, run them another 30k at least.
And generally you shouldn't gap iridium or platinum plugs. Check for a warning label first. Apparently you can scrape off the iridium or platinum coating leading to a very short life.
My shop will not install any plug but OEM. NGK may or may not have been the oem manufacture for Acdelco in 1999 either.I actually believe champion whas the maker in 99. I do agree NGK make the best aftermarket plug on the market but your likely going to pay more then what OEM delco is anyway for them.
I believe your wanting delco 41-110. All 8 only cost about 40 bux and are iridium.
I believe your wanting delco 41-110. All 8 only cost about 40 bux and are iridium.
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