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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Low Coolant Warning on - en route to France !Views : 2460 Replies : 37Users Viewing This Thread : |
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Aug 22nd, 2019, 14:10 | #31 | ||
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Quote:
Quote:
But wait for others to confirm this...
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Volvo XC90 D5 AWD Summum MY05 Harley-Davidson Ultra Classic Electra Glide MY91 FLHTCU |
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Aug 22nd, 2019, 14:33 | #32 | ||
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Quote:
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What does Vida say are the possible causes and fixes?
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2002 S60 SE D5 Manual 209000 miles |
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Aug 22nd, 2019, 19:47 | #33 |
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So Vida says to check boost pressure sensor.
I see from earlier post with input from you / Clan here .... https://www.volvoforums.org.uk/showt...=275871&page=2 that says to check the atmosphere readings with engine off. I see 3 readings under ECM .... ECM Atmospheric Pressure - 1015 hPA ECM intake Manifold Pressure - 1018 hPA ECM Boost Pressure (desired value) - 1033 hPA Are they close enough ? I have felt intake pipes for splits on the visible sections, and have checked jubilee clips for tightness. I've also checked any sensor wiring I can see to make sure its all seated. Having cleared the codes now when I floor it in 4th the engine system service light comes back on, but now (two tests) I just get the MAF DTC (ECM-135F - Mass Air Flow signal too low). |
Aug 22nd, 2019, 20:23 | #34 |
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And from this post - very similar symptoms / codes and that was the intercooler.
https://www.pistonheads.com/gassing/...=1320485&i=520 I could see a very small amount of oil on the air con pipes in front of the aircon radiator, but there doesn't seem to be any more since, but the car has 135k miles on so seems possible the intercooler is on the way out ? |
Aug 23rd, 2019, 19:34 | #35 |
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So with codes clear it seems I can drive around the problem by avoiding full engine load, or equally I can trigger the light at will by flooring it in 4th.
Does this give any pointers to cause ? Does that suggest early stages of Intercooler failure ? Thanks |
Aug 28th, 2019, 14:47 | #36 |
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Coked-up turbo inlet guide vanes. Remove, clean/replace turbo I'm afraid.
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Greg |
Sep 29th, 2019, 18:15 | #37 |
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Just to update this thread. i replaced the intercooler and cleared the codes and all the issues I had are now resolved.
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Sep 29th, 2019, 19:29 | #38 |
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Thanks for the update/close down
Always good to hear how the problem has been overcome. It would be good to have the 3 pressure readings again - with the new intercooler ECM Atmospheric Pressure - 1015 hPA ECM intake Manifold Pressure - 1018 hPA ECM Boost Pressure (desired value) - 1033 hPA Cheers Dave |
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