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

Get a second opinion. But it’s entirely possible that a chain is in your future. That’s an interference engine, I don’t know about catastrophic failure but it’s entirely possible that aluminum engine could damage everything if you smash a valve into the piston. 8k sounds like a lot for a 4 cylinder motor tho. 8k would cover another motor.

$7-10k should get you a new engine, not just a timing chain replacement.

Regular 2.4? Timing chain should run around 500 for the ecotec. Variable cam Timing solenoids are also common failure point in these engines and are easily replaced. If chains are loose and jump it will bend valves/break rocker arms which requires cyl head removal to replace valves etc. most shops at that point want to replace engine at that point although it’s a needless exercise to replace when the head can be easily repaired.

if the chain has failed, I wouldnt bother. unless you are forced to for transportation.

So replace the timing chain asap. It’s either replace timing chain or timing chain breaks likely while driving and you have valves hitting pistons and destroys the motor. So as preventative maintenance get a complete timing job done. It’s that simple

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

2. That’s nuts. Get a second opinion.

Get a second opinion.

Timing chains are not 8000$.

F that mechanic get a new one

I charged $1200 to do a timing chain and tensioners on a 2013. it had a CEL for timing issues.

$7-10k is probably what he said would cost if timing chain let go and required a new engine. That shouldn’t be much more than $1200 or so to get timing chain replaced and related parts.

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.

Scam. Just buy a new car for 8000.