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S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004. |
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T4 loss of powerViews : 1274 Replies : 9Users Viewing This Thread : |
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Nov 30th, 2009, 20:15 | #1 |
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T4 loss of power
Hey folks, i was wondering if you could help me. I have a 97 s40 t4 and ive been noticing random losses of power from time to time. Every so often it seems as though the turbo is cutting out for a second and then comes back to life. Its my first volvo so im not too well informed about there problems. Someone told me there prone to fuel pump issues, is this true? It isnt happening enough to be a problem but i do wanna know sould i take it in to Volvo now incase it turns into a bigger issue.
Cheers Folks Morgan |
Nov 30th, 2009, 22:16 | #2 |
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Fuel pumps can give trouble, does the pump seem noisey ?
If the pump is on its last legs keep the tank full, the fuel keeps the pump cool. Also check its got genuine volvo spark plugs, these are a must on the T4. Keith.. |
Nov 30th, 2009, 22:29 | #3 | |
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Cheers dude. The guy i got her off said to keep using the platinum plugs and that mine had areound 10k left on them, i havent done close to 10k yet so i presume there still cool. Now that you mention it, it only really happens around the 20 liter mark.. Actually also my trip computer has stopped working. Does anyone know how to fix that? |
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Nov 30th, 2009, 22:35 | #4 |
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and no i havent noticed any sounds from the pump.
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Dec 1st, 2009, 16:30 | #5 |
T4 Test pilot
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Hi, could also be the FPR(fuel pressure regulator) with any performance car fuel pump or pressure issues will be more exagerated. Mine has the same problem, some days it's like rocket and others it seems slower than my honda accord (2.2i VTEC) which in theory is 50hp and 72.blah blah blah lbs ft of torque down on the T4. I know my fuel pump is fackered though, can you here a whirring sound inside the car when you start it, you should get the initial short buzz/whirr and the fuel pump primes the injectors when you switch the ignition on but there should be no audible noise once engine is running. It's not always that easy to notice so make sure stereo is off when you listen for it.
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Dec 1st, 2009, 17:50 | #6 |
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It could be your cat, if the ceramics have shattered your exhaust plugs up drasticly affecting power.
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Dec 1st, 2009, 22:15 | #7 | |
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Dec 2nd, 2009, 00:06 | #8 | |
T4 Test pilot
Last Online: Oct 17th, 2012 08:16
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Quote:
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Dec 2nd, 2009, 01:35 | #9 |
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Yep, sounds like FPR and fuel pump issues. If you do a search for either you'll see your exact symptoms. Pumps are good for 100k miles and the slow starting is normally due to a faulty FPR.
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Dec 2nd, 2009, 20:53 | #10 |
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Your all heros lads thanks a million...
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fuel pump, loss of power, s40 t4, turbo |
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