Why is there no pulse to the fuel pump?
There is no pulse to the fuel pump. connecting hose to the valve cover looks good. Motor cranks freely. What else could cause this? with an assistant’s help, spray some rattle can carb cleaner down the carb throat while cranking engine. If engine starts momentarily or attempts to start, prob is most likely lack of fuel delivery.
How to get no spark or injector pulse?
Checked codes and got crank cam and O2 sensor. Replaced the crank sensor and the engine control relay with an OEX unit from Ashdown’s. If I bypass the fuel pump relay I get constant fuel flow but no spark or pulse. Someone please tell me I am not up for an ECU BCM and FOB package
What should I do with my fuel pump?
Also make sure that fuel supply lines to fuel pump are in good shape and that fuel filter is not clogged or installed backwards. Disconnect fuel pump to carb hose, crank engine. Should put out a stream of fuel (CAREFUL – catch gas in small container). If OK, clean/rebuild carb.
What to do if there is no spark or fuel?
If there is no spark or fuel, then the first thing I would do is check the vehicle’s fuses and relays, particularly the EFI main and ignition relays. It may be possible that one of these components has failed and is cutting off power to the vehicle’s ignition and fuel systems.
There is no pulse to the fuel pump. connecting hose to the valve cover looks good. Motor cranks freely. What else could cause this? with an assistant’s help, spray some rattle can carb cleaner down the carb throat while cranking engine. If engine starts momentarily or attempts to start, prob is most likely lack of fuel delivery.
What should I do if my fuel pump is damaged?
Disconnect fuel pump to carb hose, crank engine. Should put out a stream of fuel (CAREFUL – catch gas in small container). If OK, clean/rebuild carb. If not, remove fuel pump (marking hoses for correct reconnection). Either replace with new pump or chk existing pump for damaged diaphragm. Repair as necessary to obtain fuel flow.
What to do if your fuel injection is not working?
However, before looking for the problem in the fuel injection system, make sure that it is not possibly in another part of the engine, such as in the ignition system. Engine does not start, fuel pump is not running. Defective pump connections, pump relay or connections. Check pump connector for good condition.
How can I check if my vacuum fuel pump is plugged?
Check the fuel tank cap to see if the vent on the fuel tank cap is plugged. If the fuel tank cap vent is plugged than fuel will not flow out of the fuel tank. Next, check the pulse line on the vacuum pump.