Thanks for all the responses! The ‘Bastards’ thread is a goldmine of information. TBH I thought the ‘99 S70 would be nearly identical to the 850’s but I’ve learned they are almost completely different. Especially frustrating is the horrible chipped key anti-theft mess. It’s a good thing the new-to-m...

Just a personal opinion - I wouldn’t do a head gasket repair without getting the cylinder head surfaced. Make sure the shop knows to NOT mess with the cam side. When I take one in I always mention it.

Update 4 Recently I learned either my borescope is useless, or I can’t see well (or interpret what I see?). I went ahead and pulled the cylinder head, because why not? I have looked, photographed, videoed and looked again, and I don’t see a crack anywhere. But the head gasket was definitely blown. I...

Encourage users to not post repair information in the “What did you do today…” threads. I wonder how much great information is lost in these thousands of pages. Start a new thread.

99 S70 Heater Hose Upgrade In the process of doing a head gasket repair on my 1999 S70 GLT B5254 I decided to upgrade all of the coolant hoses, gaskets and seals. I ordered a silicone hose kit from G-Plus but it doesn’t include heater hoses… IMG_2762.jpeg … So I ordered the do-kit126R heater hose k...

Maybe I’m going against the DIY spirit but I signed up and bought the Wiring Diagrams and Technical Journals subscriptions from Volvo; https://www.volvotechinfo.com/ The wiring diagram was a few dollars and I downloaded a car-specific pdf for future use. Even if it wasn’t reasonably priced it still ...

Here is the Component List for my '99 S70. I don't imagine the 00-04 cars are a lot different. I suspect the component numbering is probably an ISO standard like relay terminal numbering, but I haven't been able to verify. https://drive.google.com/drive/folders/1INo8FSBpj64CMqNG44EHIZDWneIMItAZ?usp=...

jmartin919 wrote: ↑11 Jun 2024, 06:02 Did you do the "unload VVT" thing with the belt on?

I turned 90 degrees past the marks and back.

I replaced the ETM with a third unit and the problem seems to be resolved. I’m still getting the older Xemodex unit from scott850, because frankly I don’t trust the OEM ones. To recap for those that don’t want to read through the entire thread; car ran good for a few minutes on startup but shortly a...

The 99 MY with Bosch ME7 engine control achieves cruise control via the Electronic Throttle Module. There is no separate relay or vacuum servo.