2012 Verano with P0014

[Jerano]

Hello everyone. I'm new here. I am trying to help my son out with his Verano. He's had it several years. Unfortunately, he hasn't done the best job of keeping his oil topped off and clean. Currently he has almost 160k on it. I've changed both of his vvt's in the past and the 0014 and 0015 codes went away. The P0014 has come back and changing the intake vvt hasn't helped. I also threw in a new censor to rule it out since it was inexpensive, easy, and I really don't have any way to diagnose the problem with just a code reader. Some searching has suggested that the timing chain could also be a cause from stretching. Should I change both chains or seek a professional diagnosis first. The shops want $200 dollars and I'm not sure I would get the correct answer. In the past he had it shut the ac down due to high engine temp and the guy at the shop wanted to just change everything the codes suggested without even doing a proper diagnosis. TIA for any help or suggestions.

 

[richardnewton]

Did you use OEM solenoids from the dealer or reliable source? Modern engines are sensitive to second-tier branded electronics. Beware of parts from ebay or Amazon etc.

If this is the 2.4 engine, is it the original timing set? If so, you really need to consider have the entire set changed with OEM parts (some claim the Cloyes set is OEM too). Some parts were upgraded (including the tensioner and oil sprayer.). Over time the chain streches but also the plastic guides break. That is not cheap so decide if the car is worth the investment.

These videos might help you too. Just note, solenoids that bench test ok might have internal connections that fail intermittently under the hot hood.

 

[Jerano]

Did you use OEM solenoids from the dealer or reliable source? Modern engines are sensitive to second-tier branded electronics. Beware of parts from ebay or Amazon etc.

If this is the 2.4 engine, is it the original timing set? If so, you really need to consider have the entire set changed with OEM parts (some claim the Cloyes set is OEM too). Some parts were upgraded (including the tensioner and oil sprayer.). Over time the chain streches but also the plastic guides break. That is not cheap so decide if the car is worth the investment.

These videos might help you too. Just note, solenoids that bench test ok might have internal connections that fail intermittently under the hot hood.

Thanks for your reply. As far as oem goes, no. I used orielly and autozone parts since they were convenient and I was in a hurry at the time. I don't think that was the problem though since I replaced the intake before with the same parts and it lasted. I also did a warranty swap and still the problem remained. Possibly the autozone part is the problem, but with the mileage on the vehicle and it being the original chain set I went ahead and replaced them with a Cloyes set, which included all the updated sprocket and tensioners as well as the vvt's. None of the guides were broken. I wish I would have compared the chains in length before I put it back together to see how much stretch there was. I really wish there was an affordable scan tool solution for the backyard mechanic like Forscan for Fords or OBD Jscan for Jeeps. I could look at the requested and actual timing to see if there was an improvement. Hopefully, that is the end of the P0014 code. If I don't post any more replies then it was.