Spark Plug Issue

[Daniel @ K8 Stinger Store]

I had 6 spark plugs and 6 coils replace a few weeks back for a misfire code. When I replace them I regap mine plugs to .025. The stock gap was at .035.

You regapped stock plugs or HKS? HKS should come with a gap close to or around 0.025

 

[Hung tran]

You regapped stock plugs or HKS? HKS should come with a gap close to or around 0.025

Regap stock plug.

 

[Daniel @ K8 Stinger Store]

Regap stock plug.

Gotcha, just checking!

 

[MenShengFaCai]

Yes claim is open, I'm working with Kia. I'm just keeping everyone updated

Any updates? I have the same problem!!!

 

[Got_Stinger]

Spark plug #6 this time

That's a coil issue, actually seen it on other vehicles and one of my customers who kept blowing no 3 cylinder on his 5.4 triton engine. Changed the plug out 3 times and then the coil also on the 3 time and no more issues.

Coil issues!

 

[Stingery]

Sorry to interrupt and join this discussion, but at 2900 miles, My “check engine” light turned on. Unchipped stinger gt awd. Diagnostic comes back “uncertain” from local Kia dealer tech. They needed to patch in w Korea (as was explained to me)? Whatever, I just want to find out why the light turned on and get my stinger back. They put me in an optima which just doesn’t have the juice I need.

3 days later (today), I find out they need to replace ALL the spark plugs (I will need to reverify since it sounded crazy), and they are waiting for the parts... light turned on when I was accelerating on the highway.

 

[Kazz]

Sorry to interrupt and join this discussion, but at 2900 miles, My “check engine” light turned on. Unchipped stinger gt awd. Diagnostic comes back “uncertain” from local Kia dealer tech. They needed to patch in w Korea (as was explained to me)? Whatever, I just want to find out why the light turned on and get my stinger back. They put me in an optima which just doesn’t have the juice I need.

3 days later (today), I find out they need to replace ALL the spark plugs (I will need to reverify since it sounded crazy), and they are waiting for the parts... light turned on when I was accelerating on the highway.

I hope that fixes your issue. Some have had coils replaced as well as plugs. Please keep us posted!

 

[Hung tran]

New plugs and coils will fix your issue

 

[max2382]

sorry, I'm a bit confused. is this a problem exclusively of modified cars/engines, or of completely stock ones too?

 

[Hung tran]

Stock onw too. Everyone who mod there car the tuner recommend replacing the spark plug before tuning it.

 

[max2382]

Stock onw too. Everyone who mod there car the tuner recommend replacing the spark plug before tuning it.

Thank you. And what should I do about this issue?My car is fine, so far. Should I just call my dealer and he will replace the plugs for free as it is a common and known problem or it is something not covered (yet)?

 

[Hung tran]

No they will not replace it if there is nothing wrong with it.

 

[Stingery]

I hope that fixes your issue. Some have had coils replaced as well as plugs. Please keep us posted!

Call from dealer today, "parts are in", will confirm at pickup tomorrow or Thursday if it was truly all 6 spark plugs replaced and if they did anything with the coils. From reading some of these other replies, I'm worried about running into the same issue down the road (no pun intended) IF the dealer did nothing about the coils. I know zero about cars beyond what I've picked up in this forum, what other questions should I ask when picking the car up?

 

[Stingery]

I hope that fixes your issue. Some have had coils replaced as well as plugs. Please keep us posted!

Single spark plug was cracked and replaced at no cost. Put a couple hard miles on it after picking up, good as new. I asked about the coils before leaving. Service manager said, MAYBE, but would need to happen again to warrant replacing.

 

[Kazz]

Interesting. Thanks!

 

[Fractyl]

At ~3K miles after the first maintenance check-up, I had a similar issue that became extremely pronounced upon cold start first thing in the morning. Violent engine vibrations, jerky shifting, and engine light comes on - happened multiple times, and would fade slightly after restarting the car. After leaving it for a few days (luckily getting hooked up with a rental car) at the dealership, they ended up replacing the ECU, spark plugs, and coils. Seems to have done the trick, but waiting to see if it will hold up.

This was on a fully stock Stinger GT2 AWD.

 

[STINGER]

On stock cars seems more likely to happen on AWD cars, probably because it runs slightly more boost than RWD.

 

[MYCRAZY]

I know that this is an old thread, I am having Spark Plug issues now with my 2019 GT2 AWD with 12,500 miles, Had some feeling of jerking and was at Tail of the Dragon when my check engine light came on with extensive sputtering following; #3 misfire code. I was able to drive the car home in ECO mode and put it into the shop. drove the car today 60 miles and had the same issue. I added the K&N intake after the 3rd spark plug was replaced, no chip or tune.

 

[Gviggy]

I have a Stinger GT2 AWD. Just hit 2k miles. The other day I was in Sport mode and hit the gas hard. All of a sudden it started jumping, almost as there was too much gas hitting. Check Engine light came on. I shut it off and restarted the car and no CEL. Drive it normal, no issues. Hit the gas hard again and it's starts jerking again. I work at a Kia dealer so it's very easy for me to pull the car in when somethings wrong with it.

My tech pops the hood and Spark plug #4 is cracked...bad. Ordered new plug, next day we replace it. Take it out, hit the gas hard again and it's jerking again, engine's rumbling. Pull it back in to service and the new plug is CRACKED AGAIN!

Tomorrow will be day 3. I will keep everyone updated. Is anyone else have this problem though?

I’m having the same
Issues but with plug number 2 the coil was cracked and replaced and all 6 plugs replaced as well with factory ones
Have you solved this problem yet and what was it I have been to dealer a few times as well it drives normal when push it hard engine light comes on. Well you know the rest
I thought I was alone
Need help thanks

 

[cncBilly]

I’m having the same
Issues but with plug number 2 the coil was cracked and replaced and all 6 plugs replaced as well with factory ones
Have you solved this problem yet and what was it I have been to dealer a few times as well it drives normal when push it hard engine light comes on. Well you know the rest
I thought I was alone
Need help thanks

What plugs and gap you using? Any mods under the hood?