1990 Chevrolet Lumina "check fuel pressure" Questions

...check valve in the fuel pump assembly that is suppose to keep pressure in the fuel lines an fuel rail . When the check valve goes bad allows fuel to drain back into the tank. Try turn the key on an ...

...check your fuel pressure there is a port on the injector rail for using a screw on pressure guage check your fuel pressure specs and go from there. dont hold me to it but i beleive that car is ...

...fuel. check or replace fuel filter to see if this helps, also make sure fuel pump is pumping the fuel at the right pressure. have pressure checked if need be. if not enough fuel a vehicle will run at ...

check fuel pressure.if you got TBI FUEL INJECTION PRESSURE SHOULD BE 26-32 PSI. IF YOU GOT MFI FUEL INJECTION PRESSURE SHOULD BE 40-47 PSI.if all is good .have car scan check the egr valve.map sensor.

...check valve built into the fuel pump also; that can be faulty and if the pressure is generally reading low and the check valve is bad- this can also create your problem. We have run into this before ...

need to perform a fuel pressure test with a pressure gauge to see if the fuel pump is working and is working at the proper pressure. You might check your fuel filter as well. I suspect a bad fuel pump

...may well be a faulty fuel pump. Have the fuel pressure checked in the fuel rail. THis will indicate if the fuel pump is operating and if the pressure regulator in the fuel rail is working. Good

BY PUTTONG STARTERGAS IN THE AIRBOX AND SEE IF ITS START AND DIES , THEN CHECK THE FUSE TO THE PUMP , what is your fuel pressure, gots to know, maybe fuel filter, could be pump, but check pressure 1st

...fuel pressure?  Maybe the fuel pump or fuel filter is not providing enough pressure at the fuel rail for the injectors to work.Also, clean the mass air flow sensor with a sensor- safe ...

...fuel . check fuel pressure most likely bad fuel pump. also check your oil sending unit or gauge. chevys run the fuel relay to the oil pressure switch in case the oil is so low the car wont start. ...