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2008 S80 - No start, no crank. P0340 P0365

Help, Advice, Owners' Discussion and DIY Tutorials on the third generation Volvo V70 wagon and XC70 crossover, and second generation S80. Are you an owner? Prospective owner? Get in here and join us! Start a new topic or comment on an existing thread.

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MazdaDude
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MazdaDude

2008 S80 - No start, no crank. P0340 P0365

Post by MazdaDude » Wed Jun 10, 2020 8:17 am

First time posting here, need some help.

My wife was at the store last week, ran in for about 10 minutes and came back to a no crank no start situation. Being her, she had someone help her jump it thinking the battery was dead.

No dice. She got a ride home and left it at the store.

I went to go get the car that night, hooked up my UltraGauge, which said 0340 and 0375, I had the car towed home, ordered 2 replacement camshaft sensors and swapped them out. Codes seem to have gone but the CEL is still on, and flashes 9 or 10 times before going solid. Still nothing. I have checked the fuses and relays, everything seems good. The engine is actually super clean. Left the battery D/C overnight to be safe.

I attempted to jump the ignition relay directly but just got sparks, nothing else. And now I’m also getting P0725 and P1719 In pending after checking all the relays and a DSTC message on the dash.

If someone could perhaps guide me through this, weve only owned the vehicle for a year and have already had to drop 1400$ on replacing 2 pumps and something with the oil pressure system/diaphragm back in December. Has been fine since then until now.

Few things, I have heard some Volvo’s have a second battery for the starter, but I can’t find one. Where is the starter located, I’d like to try and look at it. And could bad ignition wires/plugs actually prevent this dead silent start? I’ve never had a vehicle so quiet when attempting to start. I can hear what sounds like the fuel pump engaging but that’s about the only sound I get. There is one component in the facing front left under the hood, that hums, but I’m not sure what it is or if that’s normal.

There’s nothing on YouTube for this specific model so I’m struggling 😂 Guide me Volvo folks! thank you in advance! 6 pack to a correct solution!

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pgill
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pgill

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by pgill » Thu Jun 11, 2020 10:29 am

Start with a hard reset.

Remove B+ and B- and leave disconnected for at least 30 minutes and then reconnect and try again.

When you start your S80 do the following

1. Get in the drivers seat and close the door

2. Dock the key and count to five

3. Step on the brake and count to five

4. Then press the start button

My S80 wont start if I leave the drivers door open.


If this doesn't work the next steps are

- disconnect the MAF and see if it will start

- check the fuse for the fuel pump (by the front passengers feet)

Let me know what you find out

Thanks

Paul

MazdaDude
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MazdaDude

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by MazdaDude » Thu Jun 11, 2020 6:04 pm

Paul,

Thank you for the response! I’m excited to try these suggestions tomorrow when the weather is nice! Could you elaborate on the B+ thing? I’m not sure what you’re meaning there.

Battery? I left it disconnected overnight, but just the negative terminal, you’re saying I should remove both? I just don’t want to screw it up any more. Appreciate it! Going to disconnect it now and get back to you about the rest tomorrow. 👍🏻

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pgill
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pgill

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by pgill » Thu Jun 11, 2020 6:53 pm

If you disconnected the positive lead overnight that should be fine.

B+ is positive battery lead

B- is negative battery lead

You can also try starting in neutral instead of park

It’s a little complicated but I can explain it if you aren’t able to start in park

Good luck

Paul

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pgill
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pgill

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by pgill » Thu Jun 11, 2020 9:47 pm

This should help with explaining how to get in the power mode 2 to try to start in neutral

Note: don't touch the brake

Power_modes.jpg
Power_modes.jpg (189.55 KiB) Viewed 112 times

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pgill
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pgill

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by pgill » Thu Jun 11, 2020 9:51 pm

One last though

Your S80 3.2 is old enough that the starter motor may have failed.

I did have to replace the starter motor on my LR2 with the same engine at 100,000 miles

For my S80 I haven't changed the starter

But before you replace the starter try starting in neutral (Power mode II)

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pgill
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pgill

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by pgill » Fri Jun 12, 2020 12:37 pm

Here is the procedure for starting from power mode II

--> Dock the key (don't touch the brake)
--> Press start/stop for 2 seconds (don't touch the brake)
--> Press the Brake pedal and move the gear selector to neutral
--> While still pressing the brake pedal press start/stop

if it doesn't start then
--> Press start/stop for 2 seconds (don't touch the brake)
--> Press the Brake pedal and move the gear selector to Park
--> Press start/stop quickly (don't touch the brake)
--> UnDock the key

MazdaDude
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MazdaDude

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by MazdaDude » Tue Jun 16, 2020 10:11 am

I really appreciate the thoroughness, I will try that later today.

So I tried leaving it disconnected overnight, brought the battery up to full with a trickle charger, replaced the spark plugs just because they to be anyway, can’t hurt. Check engine immediately comes on after reconnecting the battery and trying to start. I hear one “click” that sounds to be coming from underneath the car and then nothing. I also hear a buzzing sound: http://voca.ro/lsFWi3oiEEr coming from I believe the turbo...? The black plastic in front of and connected to the engine? It connects to some sort of alloy component on its underside with just a couple wires going to it and a rubber flex hose connected to it on the underside. If you put your ear in that black plastic this is what I hear.

Still the P0750 and the other 4 digit one I think I posted earlier. No more camshaft sensor codes just those. But I don’t understand how 10 minutes in the store can be that troublesome 🤦‍♂️

I tried forcing the starter using the jumper method to the relay, but just got a few sparks and nothing. No sounds or anything.

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pgill
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pgill

Re: 2008 S80 - No start, no crank. P0340 P0365

Post by pgill » Tue Jun 16, 2020 4:15 pm

It really sounds like your starter motor has failed.

Make sure that the fuseable link hasn't broken.

Just check for 12 Volts on the large wire attached to the starter

Note: this is for the LR2 but the configuration is very similar

(I own a LR2 and a S80)

Image

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