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XC90 '02–'15 General Forum for the P2-platform XC90 model |
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Xc90 2.4d 2003 low batteryViews : 339 Replies : 3Users Viewing This Thread : |
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May 23rd, 2019, 21:28 | #1 |
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Xc90 2.4d 2003 low battery
Hi. Hi have a 03 2.4d xc90. The dash keeps telling me i have a low battery. This happens if my lights are on or just today, when the ac is going for it trying to cool the car down.
I correct it by going a speed suitable for 2nd or 3rd gear, and get the revs up. The lights then get brighter or, today the ac gets load and cold. Happens nearly every start if lights are needed or it is hot in the car. Does anyone know what might be causing this. It had a new battery last November and alternator about 1.5 years ago. Any thoughts are welcome. Thanks David |
May 23rd, 2019, 22:22 | #2 |
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Last Online: Mar 20th, 2024 19:26
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If the lights are getting brighter when you rev your engine then something is wrong with the alternator.
A normal alternator puts out a steady 14.4V from about 800 RPM upwards And it is impossible to see any variation in any bulb brightness from 800 RPM upwards So get it checked.
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XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65. |
Jun 4th, 2019, 20:44 | #3 |
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Last Online: Mar 18th, 2024 21:27
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No its not like that. When the lights are dime they stay that way. Until i give some revs. Once the lights ard bright they stay bright.
Any ideas. Getting alternator checked tomorrow. |
Jun 5th, 2019, 06:53 | #4 |
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Last Online: Mar 20th, 2024 19:26
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You definitely have a battery and charging system problem.
Do not be surprised if the alternator and/or battery have failed and need to be replaced.
__________________
XC90 R-Design MY2009, Black Sapphire Metallic. HP-Sound, RSE, Nav, Tel, ParkingCam, BLIS, ParkingHeater, RestHeat, Removable Towbar, Summer: CRATUS 20x8 on Pirelli Scorpion Zeros 255/45, Winter: NEPTUNE 17x7 on Continental WinterContact 4x4 235/65. |
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