2005 volvo cx90 oil preasure switch

Usually a bad wheel speed sensor. See ABS notes on linked page.
Do It Yourself Diagnosis and Repair

Volvo Oil pressure sensor Part 30713497

this will show you where it is and where to buy it.

Removal and install should be a one wrench job.
Hope this helps

You may find something of use here.......................


Volvo XC90 Frequently Asked Questions 2003 2014

Could be a short in the fuse pannel

check the relay system...could be bad....

check coolant level should be between cold and hot.

you can but will need to remove radiator and a/c condensor and maybe grill, you need room to slide it out and to use the tool to remove the bearings,also if you are replacing the bearings i would highly recommend replacing the camshaft,also did you replace the oil preasure switch or test the oil preasure with a gauge to make sure you were loosing preasure, or did you do this by the inside gauge. hope this helps.

try replacing the oil preasure switch, if that doesnt solve your problem then have your oil preasure tested, if it really doesnt have oil preasure it will cause internal engine damage so start with the switch and then go from there, hope this is helpful.

try replacing oil preasure switch, if light still comes on then have oil preasure checked , (when cold) may need oil pump if presure is low, if you caught problem early you wont do any engine damage, again start with the switch .hope this helps.

I am trying to change my volvo cx90 rotors and brakes. I have manage to get everything off xcept rotors, the rotors are hanging loose but its attached to some bolts which I cant get off, pls can you help with any ideas