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Discussion Starter · #1 ·
I've always heard over the years that when it comes to major repairs, change your timing belt at 100k miles. Is this also the case with the St? If not, what other maintenance should I be doing at 100k?
 

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ST and all newer cars now use timing chains instead of belts.

Most chains are supposed to be non-serviceable but they can stretch with tensioner failures and such. Although have not heard anything related to ST's so I wouldn't worry here.

Just keep on top of normal maintenance like brakes, tires, fluids, etc.

Only thing I could see checking is accessory belt tensioner to make sure it's still within spec and accessory belt.
 

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100k Mikes? Man, that sure is a lot of mikes :p

In general you'll follow what Unfit said, and of course just do your general maint, look at the spark plugs and check gap, fluids, suspension check, oil, ect.


I've always heard over the years that when it comes to major repairs, change your timing belt at 100k miles. Is this also the case with the St? If not, what other maintenance should I be doing at 100k?
 

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Yeah these engines use a timing chain, not belt. I've never once read or heard issues with this in these motors so I wouldn't worry about that.

Like others said, accessory belts are good to check/replace around 100k and also fluids. I personally would get my coolant system and brakes flushed.
Coolant system especially, aluminum oxide (same material most sandpaper is made of) from the block and head will destroy a water pump impeller. It's a good precautionary measure to get a flush, they will use a cleaner chemical on it to get rid of any sediment and then also pump a corrosion resistance chemical through to help protect everything. I had this done on my last car, a cobalt, when I hit 100k and it's just a good peace of mine. And then I did the brake fluid myself.
 

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quick insurance would be to change the snake belt, double as checking the tension on it, should feel like factory to your accessories. be a few hours, basic tools and whatever the cost of a belt is at auto store/dealer

just my thought on the matter, but I tend to over maintenance things to make sure I don't FORD (found on road dead)

100k I would change trans fluid as well. I changed mine at 40k and it was the best thing ever. I will likely do it again at 80k.
 

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Discussion Starter · #8 ·
Check serpentine belt and ac belt. Suspension usually goes out around 60k miles, make sure nothing is leaking.
Nothing is leaking, but I will be replacing my struts/shocks soon with Bilstein b8s. Anything else I should replace while at it?
 

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Change the oil every 10k or when it says, replace things when they break. That's it. Haven't had a breakdown in over 15 years and that was a t-belt tensioner failure. I do not drive cars easy (though I always wait for everything to warm up) and my '12 Focus SE was totaled with 204k, still ran like new. I consider 100k to be broken in as I drive 40-60k mi/yr.

I worked with a guy who drove more than me and did my same maintenance regimen with the cheapest new cars he could buy in cash, we're talking Cavaliers and Escorts and such and he considered a car a failure if it didn't go over 300k without a major problem. He also drove everything like possessed cops were chasing him. Last I saw him, he told me he had sold his Cavalier to the gas station the head gasket blew up at. It had over 325k and that was the first head gasket failure. Probably would've been fine to fix the engine, but after a load of rebar fell off a truck in front of him at 80 on the highway and sliced through the floor like scimitar blades, water had gotten in and it smelled of mold.
 
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