Secondary to a check engine light, rough idle, cutting off, and sounded like a truck, I took my car to the dealer where I purchased the car. I've never missed an oil change and have all maintenance records. They indicated all my problems were indicative of a "stretched" timing chain, which needed replacing. I thought that was BS given the car is 3.5 yrs old 77k miles. Long story short, I took it to another location and it was immediately determined I had no engine oil (nothing on the dipstick), which the dealer COMPLETELY missed. Oh, and there are no oil leaks; this has been confirmed by 3 independent places including the Buick dealer who performed another complete diagnostic. Although adding oil cleared up the rough idle and truck engine sound it didn't clear the codes. Turns out I don't need a timing chain, I need cam shaft intake and exhaust actuator solenoids, hence my question. If the lack of oil for several months could cause the solenoids to fail, then I plan to go after the dealer to pay for the repairs. At the very least, I am owed a refund on the oil change that never happened.