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04 V70 2.5T fuel pump issues

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive "P2" platform cars.

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Rgreiner
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04 V70 2.5T fuel pump issues

Post by Rgreiner » Thu Jul 18, 2019 7:14 pm

I have an 04 V70. It has a steel fuel tank so obviously it's an odd ball. I was in the drive thru at the Chic Fila and it just quit. Relay was clicking but no pump. I tried swapping relays that did nothing, then I replaced the fuel pump. Which took me a couple orders because of the steel tank thing. But it is a factory replacement pump from Volvo. Not a cheap piece!
Well it still doesn't work? Is there any other components between relay CMI12 under dash and the pump? I haven't found a proper diagram yet.. it doesn't help its 100deg outside working on it either. Any help would be much appreciated. Thanks



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abscate
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Re: 04 V70 2.5T fuel pump issues

Post by abscate » Thu Jul 18, 2019 7:56 pm

The P2 fuel delivery uses the central electronic modul (CEM) a pump electronic module. The Pump module Is the most likely failure,


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Re: 04 V70 2.5T fuel pump issues

Post by oragex » Fri Jul 19, 2019 4:01 am

As above, look for the PEM (google) $50 used off Ebay. No need to put back the small locking tab and screw

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Re: 04 V70 2.5T fuel pump issues

Post by MDK » Fri Jul 19, 2019 3:08 pm

I concur... PUMP ELECTRONIC MODULE.(I hate acronyms) btw. It good to have moderators like abscate, Oragex, Jimmy 57 and a handful of other people around... really know their stuff when it comes to the diagnostic side. MDK
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Re: 04 V70 2.5T fuel pump issues

Post by cn90 » Fri Jul 19, 2019 4:20 pm

You can find a used PEM at local junk yard for $15-$20.
Give it a try.

If not, then try ebay, about $45 for a used PEM.


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Re: 04 V70 2.5T fuel pump issues

Post by Rgreiner » Fri Jul 19, 2019 10:58 pm

Thanks for all your help. I pulled the module out today. It's pretty corroded. I'm gonna order another.



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Re: 04 V70 2.5T fuel pump issues

Post by abscate » Sat Jul 20, 2019 5:09 am

MDK wrote:
Fri Jul 19, 2019 3:08 pm
I concur... PUMP ELECTRONIC MODULE.(I hate acronyms) btw. It good to have moderators like abscate, Oragex, Jimmy 57 and a handful of other people around... really know their stuff when it comes to the diagnostic side. MDK
It’s an MVSBP* to not use AWOD**

*Matthews volvo site best practice

**acronyms without definition

WE can do a better job here of stopping this bad habit, which is tough on newer folks. I caught myself with one above but not the first one :cry:


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