Problem solved: I got a internally bad ac delco spark plug. Gap and everything was correct no cracks I could see literally just a bad plug.
Reviews of AC DELCO parts For Business
USA
I got the ACDelco starter from rock auto. I think it was like 60 bucks. No issues
got the ACDELCO TCKWP312 from RockAuto
Change your thermostat and you\u2019ll be fine. I\u2019d recommend a AC Delco if you can get one easily local.
i got a ac delco in my 08 when the oem went out and it's been good so far
I put the ac delco one in mine 2nd gen last year and it’s been fine.
i had an equinox do that to me. Kept eating alternators. They were new AC Delco ones too. I just got a used OEM one and has been fine.
Ac delco/delphi quality has been getting really bad. There’s a cheaper line of products that are all Chinese and then a higher level. I stopped using their oil filters when the threads were completely off for my 3800.
I changed the oil with an AC Delco PF66 filter. Turned on the car and it instantly started spewing oil. Immediately turned it off. Oil sprayed through the cracks in front grill/bumper panel on passenger side.
Had to replace 2 fuel pumps. 1 at 140k the next at 180k. Bother were ACdelco.
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