1997 Volvo 850 no power to the fuel pump. I do

have you done any work on the car or any accidents. anything could have happened but sounds like you have a bad ground or clipped wire check that. you might have to run a new wire to the pump from the fuse box. that is what i would do.

Check fuses first. With a volt meter check for power to the fuel pump relay and thru the relay. Check for power at the fuel pump connector in the trunk. If you have power to the pump replace the pump.

if its cranking but wont start then its possible its your fuel regulator, the fuel filter is clogged or the fuel pump is bad. check the pin on the right side of the injector rail, its got a little brass knob that unscrews, if you unscrew it and then try to start it and fuel comes out its not the pump or filter but maybe the regulator or at tis age like my volvo the injectors need replacing a simple OBD code reading will tell you.

Hi, The fuel pump relay for your Volvo is located in the engine compartment. The fuse and relay box on the drivers side by the windshield. The fuel pump relay is in the back ron of relays and the 3rd one in from the left. If you look inside the cover for the fuse box there is most likely a listing of the fuses and relays. Good Luck

Sounds like you have a broken wire between the fuse box and the pump..
Check colour on the pump wire and trace back to box.. if you cannot find it and its only the pump playing up run a new wire from the FEED side of fuse to the pump but remove the old wire before connection up.. Or use a test light to find the short in old power line..
Let me know how you go Ron

check the thermostat, it's where the top radiator hose meets the motor in a housing

Check to see you have spark on all plugs.Then check ur fuel system to see if your getting fuel.Then we can assist you.

I HAVE A 1997 VOLVO 850 IT WAS RUNNING HOT FOR 2 DAYS AND NOW IT WNT START AT ALL COULD THIS BE MY THERMOSTAT

Reinstall the fuel pump relay (located under the hood on the cowl panel) If that is still there, then check the fuel injector fuses. Next remove the distributor cap, and make sure it still has a rotor button. FYI, it is either ignition or fuel or both.

sending unit in tank is bad need to drop tank and install new.