1995 blazer cylinder full of fuel. starter wont engage changed fuel pressure regulator.. ran great then wouldnt start

Try pulling the dist cap and rotor and make sure they are still in good condition and not corroded

I would want to know what the fuel pressure is on the rail. Sounds like the fuel pressure regulator has failed, or the return line to the tank is blocked.

First, charge your battery all the way, Is your check engine light on? How did you determine you have spark and fuel? Did you try starting fluid?

SOUND LIKE FUEL PUMP.REPLACE FUEL FILTER,CHECK FUEL PRESSURE SHOULD BE 9 -13 PSI. FOR TBI FUEL INJECTION AND 55 - 61 PSI FOR MFI MULTIPORT FUEL INJECTION SYSTEM.

it could also be the fuel pressure regulator or fuel filter that is in line or mabey the fuel injection relay i no it will not start if that blows well i hope this help please give a good rating that you

Ok you have the most annoying problem there is with those trucks. Either a bad Pressure regulator or a bad fuel line. Take the 2 torx screws out of the cover on the top of the motor and then remove the 10MM bolts that hold the intake together. Check and see on what side of the motor inside the intake is clean. If it is on the fuel line side then it is the lines if it is on the regulator side then it is the regulator. The regulator is about $40 and the plastic lines can be replaced with rubber lines for about $5. Make sure to put hose clamps on the new lines as the old plastic lines didnt have them.

Do you know if it is a tbi or a cpi? Have you checked for fuel pressure or spark?

I know some old fuel injected systems will dump fuel because of the coolant temp sensor should be located on lower intake in the front. Also check the timing.

Check fuel pressure it could be low regulator pressure

Check the fuel pressure regulator. generally "failure" position is full open which will richen up the fuel mixture. also check vacuum line to the regulator for cracks and good connection.