Thank you everyone.
The dealer found a burnt valve in #2 cylinder with their bore scope...
It's too bad that the body and other part of the car is pretty good condition. We wanted to drive another...

Thank you Xfingers,
Yes I understood. I looked where I can, but everything looked OK. I will bring the dealer this week, so I will let you know what they will find.

Thanks again!

Thank you hoo8it, Xfingers, hoonk, albertj,

Sorry I didn't get a notification from the site and thought there was no answer. Really appreciate your inputs.

Last thing I did was swapping the...

Installed all new spark plugs. So all new coils and new spark plugs, but still feel slight misfiring with engine checking light flashing especially when the engine is under stress or stop and go...

Is it possible that because I drove 2 hours + with failed coil (s) a few days ago, so spark plugs are shot or completely wet or fouled?
I was lazy and didn't bather to check them when I replaced...

Thank you for your help as always.
I replaced 3 failed ignition coils (Bosch) with new Volvo spark plugs a few years ago. And I bought 2 more coils just in case and kept in the car.

A few days...

Thank you Astro14,
Sorry I took these photos after I cleaned, but I will take it again if I can see the leak.

Thank you Brett,
I completely agree.
My happy Sunday toy car just broke down (over 36 years old) and I probably cannot drive it rest of the short NE summer. Then I saw this oil leak (my mech said...

Hi,
My mechanic replaced cam seal 15K ago. He said it'll be all set for a long time.
Please see the photos; the yellow circle or arrows indicate where I see oil (3rd photo is a timing belt cover)....

I have successfully installed H4 LED bulb on my old toy car (very nice night ride now!).
Now I'm wondering if I can install H7 LED (see the following link) to my 2004 XC70.
...

Thank you Astro14!
Now I should do my front struts...

Thank you.
Please see the attachment. The oval shaped hole was a bit smaller (my bad hand drawing).
That means you can turn the whole strut a bit.

Just replaced rear shocks on my 2004 XC70 (see the video for reference, thank you whoever created it).
I was hoping just top and bottom nuts to replace shocks like V70, but they are mini struts...

THANK YOU SO MUCH everyone for great detailed information.

This is the only my everyday car, so I probably have to buy an used one like the following? Then rebuild it to prepare? ...

Hi everyone,
We have a 2004 XC70 with 210,000 miles.

We love it, but the mechanic said that we’d have an angle gear problem soon. There is evidence of an oil leak from the angle gearbox on the...

Sorry for a late reply.
Thank you for the great info. I haven't driven my XC for a while, but I'm sure I will see the engine warning light. So now I have a clue.

I'd like to keep the car for...

Hi,
I get the engine error code: PO420 once every month (or every other month). Sometime the light just disappears, but other time I have to reset it.

My mechanic said just ignore it.
Any...

Just wanted to let everyone know that this was rear right hub bearing. Because this was still few years old, I didn't think about it. I cannot believe that this relatively new bearing failed again. ...

Thank you! That sounds like it since it only smell when going up a long hill with high gear.
I don't think I would like to try replacing it, but will ask my reasonable Volvo mech.

Thanks again...

Thank you!
That sounds interesting. Do you think that happens when the motor is under stress? I never smell anything while driving a town even on the highway...
Is that hard to replace???

Thank you juanpen. Yes I replaced it within a year.

I just don't understand that it only happens at a long hill on the highway. So...I haven't had the problem since I'm only driving around the...

Thank you pbierre,
I was at the very reliable muffler shop. They replaced the muffler not too long ago. They checked everything else and was good...

Maybe I should say it's like exhaust smell...

Thank you all.

Hi Xfingers,
It's done by reliable Volvo mechanic. I will try to locate the source, but mostly it happens a long hill on the highway. I drove 2 hors each way today, but no smell......

Hi all, thank you for your help as always.

2006 XC70 almost 200K miles.
1) Oil breeding system is done (area under injection)
2) New timing belt, cam seals, and water-pump
3) No leak from the...

Hi,
Just replaced it and it's running great now. It was the one right next to a timing belt (P301 code) as you guys told me.
I don't remember how I loosen a screw for a cover right underneath of an...