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850 / S70 & V70 '96-'99 / C70 '97-'05 General Forum for the 850 and P80-platform 70-series models |
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Help what now?Views : 732 Replies : 7Users Viewing This Thread : |
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Apr 2nd, 2009, 15:23 | #1 |
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Help what now?
Hello all
I followed advice about temperature sender on my 850 and after replacing thermostat housing and most of the skin on bothe hands and arms, I started the car.Brrmm brrmm up to temperature cough splutter cut out. Oh dearie me I say after all that effort as well. Cup of tea later start car and it runs unevenly then flattens out, mmmm. then the engine starts to hunt slightly and revs up to 2k then down then up again and cuts out. There was a fault code for the temp sender but I cleared that as I assumed it was the old one I hadnt cleared. The fan is kicking in immediately, any ideas anybody please? Zyzygy |
Apr 2nd, 2009, 15:34 | #2 | |
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Apr 2nd, 2009, 15:51 | #3 |
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Yes I thought it made sense to do the stat while I had the cover off, but I checked the old one anyway and it was fine. I took the cam sensor off to check that and there was some oil in there. The drain hole was blocked so I cleared it. Ran fine for a while then same old story.AAAARRRGGHHHH
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Apr 2nd, 2009, 17:25 | #4 |
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"The fan is kicking in immediately, any ideas anybody please?"
This means the ECU is not 'seeing' the temperature sensor. Either the wiring is faulty or you have fitted the wrong sensor. Did you fit a genuine unit? |
Apr 2nd, 2009, 17:38 | #5 |
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Well it should be it came from volvoparts online but you never can tell. I am seriously thinking about fitting the one that came with the thermostat housing which looks ok. When I am elected supreme ruler of the universe I intend to ban the use of torx nuts and bolts.
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Apr 2nd, 2009, 20:20 | #6 |
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update
I have just replaced the new sensor from volvoparts online with one that arrived with the stat housing result Happy Volvo Owner.....I think |
Apr 3rd, 2009, 10:30 | #7 | |
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Apr 3rd, 2009, 12:22 | #8 |
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If you drained the system, you did bleed it when you refilled didn't you? If not then the engine would get very hot very quickly. There may be a massive air bubble in your system preventing coolant from circulating properly and preventing said coolant coming into contact with the temperature sender.
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