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2005 Volvo S40 surges then loses power

Tiny
GAILT
  • MEMBER
  • 2005 VOLVO S40
Engine Performance problem
2005 Volvo S40 Manual

it feels as though I am running out of petrol and the motor practically cuts out then surges forward again. Its happening more and more regularly now. I would appreciate any help as this is dangerous. It had a full service 6000km ago. The fuel filter has being replaced. Thank you.
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Thursday, July 1st, 2010 AT 3:24 AM

3 Replies

Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
Is this a Turbo or none turbo engine? Also has the check engine light come on? Can you get it scanned for trouble codes and post them on here?
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Friday, July 2nd, 2010 AT 3:17 AM
Tiny
GAILT
  • MEMBER
  • 2 POSTS
Yes, its a t5. The scan showed interm fault on fuel pressure sensor. Volvo suggest they replace the sensor but as it costs a lot I wanted a 2nd opinion from you guys first. Regards. Gail
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Friday, July 2nd, 2010 AT 7:44 AM
Tiny
JIS001
  • MECHANIC
  • 3,411 POSTS
If fuel pressure is ok fuel pump duty cycle is within specs, then yes those fuel pressure sensors have failed from time to time.
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Saturday, July 3rd, 2010 AT 5:42 PM

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