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2005 V50 Loss Power on Hills V50

posted by  Chris Mullet on  Wed Sep 12 08:46 CST 2012
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last visit: Fri Oct 24 09:08 CST 2014
[RELATED]

I know zero about the V50's, but basic wisdom says that if you are losing power when climbing hills that you should suspect a fuel delivery problem - weak fuel pump(s), clogged filter, flaky fuel pump relay.....

If the fuel injector rail has a test point valve, you might try attaching a pressure guage and taping it to the outside of the windshield so that you can monitor it while driving. I recently did that on our S80 when trying to diagnose a bad fuel pressure sensor. Hey, there's another possibility - when the fuel pressure sensor started to fail, it was first noticeable when accelerating up uphill onramps, etc. (when fuel demand was the greatest). It had to get pretty darn crappy running before it finally triggered a check engine light and fault code.






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