How many miles on the car?

Also, how did the mechanic know the chain is about to go? Did he actually open up the engine and check the chain? Sound?

Something is fishy.

U changed the maf sensor, and resolved the issue

Get a new maf sensor from buick parts counter

Do plan on a timing system overhaul. It does need that, sooner rather than too late

The parts are $200 and the labor is 4 hours. I’ve replaced many timing chains on the Verano.

My guy did a timing chain on an 4 cylinder Audi for like 1.5k Canadian.

Doing a simple Google search yields that the average timing chain replacement on a 2014 buick Verano is about 621$. I’d get a second opinion

Car shut down while moving, and the mechanic replaced plugs, filters and sensors? Any explanation for the shutdown?

he’s probably right about thr chain going to explode. it’s more of a 2k job

For 7k let it blow lol cause that’s how much a new engine will cost. Or just a decent used car.

Save money I don’t have and park it outside of my exes house ;p

Look up if your motor is an interference or non interference motor.

Short article about it.

https://knowhow.napaonline.com/what-is-an-interference-engine/

Basically non interference have the lowest likely hood of damage while an interference motor you will smash up ain’t of parts and cost more to rebuild.

Now the person could just be saying hey it is 100k time to fix it or maybe they looked at it. If it was easy to look at probably not hard to get into to replace if hard to look at and hard to replace i doubt they checked it without billing you for it.

I have not used these guys but looks like two engines for your vehicle. One of them you can get a rebuilt motor with 5 year warranty for bit over 3k so depending on install cost probably could get a rebuilt motor with warranty for 8k

Why would you only put a new chain in and have the same old pistons, rings and bearings that you got 100k+ miles on for 8k while you could do a whole warranty motor.

Long story short get a second opinion and better quote probably can get the whole timing chain set with all new tensioners closer to 1000-1500 near me maybe less. I would only go oem parts since this is a critical part vs say off brand windshield wiper fluid does not really matter.