Bought a 2005 Toyota Corolla

[VersatileGuy]

Yo are really taking her to the cleaners for stuff that ‘might’ fail, eh?

Rad - these can last the life of the vehicle. If no leaks or seeps, why replace?
Injectors - these can also last the life of the vehicle. If no loss of performance, no need to touch.
Slight oil seep - try tightening the cover, or maybe a hm oil. If not actually dripping, will not cause a problem.
Spark plugs - are they actually due? Some are designed to go 80k.

But, you work for a dealership. You guys are pretty bad for scaring people about what might become a problem.
I manage a retail garage for a living, and I pride myself on only repairing for customers what needs to be done.

I know it has been a couple years between posts but some thoughts.....

If the coolant fluid was timely replaced, I'd keep using the old rad. But, I know running it for 10 years and slightly under 100k is a formula for radiator failure. We don't know if the prior owner stayed on top of coolant drains and flushes.

Fuel injectors actually get clogged or otherwise "interfered with" well before death, around 100k. I know for a fact my mom's Matrix had a tedious idle relearn by that time and was running lean. Probably a combo of injector and fuel pump already deviating from factory new performance.

The fuel pump is also nearing its time to die given the fuel filter(not the sock) is not serviceable.

 

[Bill7]

Tensioner was only extended a minimal amount. I reused the chain.

In these 2003 to 2008 Toyota Corollas, is the original timing chain usually good for 300k+ miles.

I've been watching too many videos on the Ford Ecoboost F150 trucks, where timing chains typically wear out faster than a timing belt would have.

 

[Triple_Se7en]

I've been watching too many videos on the Ford Ecoboost F150 trucks, where timing chains typically wear out faster than a timing belt would have.

Motorcraft Synthetic Blend oil is / was not a good timing chain protector. OCIs above 5 don't help the cause either

 

[Bill7]

Motorcraft Synthetic Blend oil is / was not a good timing chain protector. OCIs above 5 don't help the cause either

I agree. Synthetic blend is likely nearly all Group I and Group II conventional oil with just a small amount of Group III synthetic.
In a high heat situation, I wouldn't trust it. I would never use a Synthetic Blend in any engine I cared about.

 

[spiderbypass]

Remember test driving one when they cane out new. Loved the gauges-felt more upscale-while I am taller… arms are a bit shorter.. and felt steering wheel was too far away.. was really only main thing that dissuaded me from the purchase.