I replaced my 97 s10's fuel pump checked the fuses &checked the relay & reset my computer changed my fuel filter disconected my security system & still can't get my fuel pump to come on. I have pluged my new fuel pump up to a seperate battery to make sure that it will work & it will come on like that , but it want when i pluge it up to the wires that im suppose to. HELP !!!!
The oil pressure sending unit could be bad. If your oil pressure gets below 7psi than it shuts off all power going to the fuel pump. It is screwed into the engine block just to the right of the distributor.
Hi there Kyle, I am having the same issue. but i have dotted T's and crossed eyes. Grounds are good. Fuse and Relay is good. On the fuel pump relay, direct power is hot, however switch side only flickers on and does not stay on for the full 2 seconds upon turning the key to the on position. which it only flickers every once in a while. which leads me to believe, being the ECM B fuse enrgizes the pump relay via ECM B - fuel pump switch/ oil pressure sensor - Relay, since the fuse and relay are fine, either the switch, or the wire(s) between the ECM B and the relay are bad. How do i locate the fuel pump switch?
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SOURCE: 2000 Chevy blazer this is the 2nd brand new fuel pump
Spark......EQUIPMENT NEEDED: 1) fuel pressure Gage....Advanced Auto = $45..... 2) needle nose pliers ( fuse pull )..
There is a fuel pressure access valve located on the fuel injector rail. The access port or "shraider" valve has a black or gray screw on cap. Remove the cap and you will see the valve. CAUTION: The fuel rail is under pressure....before installing the pressure gauge, relieve pressure by starting the engine and removing the fuel pump fuse from the under hood fuse box......
Once the engine quits, turn the key to the off position and safely install the pressure gauge. Put a rag around or under the access valve to catch any drizzling fuel. I always prefer to do this when the engine is cool.
Install the pressure gauge, start the engine, check for leaks and read pressure output at idle, record pressure reading.
Also, it should be checked under load but you will need another person to help.
Once you have shut the vehicle off watch the pressure gauge, it should remain steady and not leak down.
Let me know what the readings are.
Regards,
SOURCE: HELP! HELP! SOMEONE PLEASE ! 2001 chevy blazer fuel problems
I would check to be on the safe side the fuel filter is going in the right direction. The arrow is pointing towards the engine away from the fuel tank, Then you need to make sure the fuel pump wiring connections are good contact and did not come loose when driving.
SOURCE: 1995 Chevy Van Cannot start after shutting it off without jumping
Check the crank sensor probably when you replaced the timing belt you could have either not put the crank signal ring in correctly or damaged the crank sensor.
SOURCE: fuel pump fuse
replace fuel pump /fuel filter/screen/keep enough gas in tank at least 1/2 tank of gas at all times and change gas filter at 10,000 miles
SOURCE: I have a 2002 chevy blazer 4.3L that wont start
are you using the original key ?? sounds wear but in the key switch there is a sensor that detects if the right key is in use otherwise it will kill the power to the fuel pump or it can be a fuse look under the left rear passanger seat there is another set of fuses and the other set of fuses are on the driver side near the door and there is another set of fuses and relays inside the hook next to the battery
Check fuse #8 in the central fuse box inside the car
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