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I am not getting fuel to the throttle body. The pressure is at 0. If I dump gas into the throttle body, it will start and then I have pressure and stay running. I did this a couple of times and after that it would start up about three different times (morning, night and morning). Now I can't get it to start at all and the pressure gauge is on 30 psi.(does want to though). Thought it was the relay, but then found out that it was the fan control one that we would mess with. Any ideas on what to try? THANKS
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Without knowing the vehicle a fuel injected car all you have to do is turn the key on and off 3 times for 10 seconds each. Carburetor is a bit harder. If the system does not leak cranking it can get it done but dumping a little gas in the carb will cause it to start and pump the manual pump much faster to prime the system. With a leaking manual pump it just takes a lot of cranking.
The regulator valve dumps excess fuel back to the tank not the throttle body. I would be checking the injector seals. If the regulator is not doing the job of regulating the fuel pressure it will have either too much pressure or not enough (misfiring). So check for any other means that the fuel can get to the throttle body.
electric gas pump pressure shutoff is broken .
back pressure return on gas is clogged , building up pressure
the relief valve on the gas cap it broken
vacuum in carb is too high
the EGR vacuum modulator valve is stuck <stretching it here
Are u sure u getting gas to the enging , u have to make sure u getting gas . Or used the quick start and spray little bit in the throttle body , this is where the air filter is and the hose that lead to the throttle body. If it start. A little then u know it is gas problem .
look into throttle body while cranking.see if you see fuel spray.if not, low fuel pressure of pluged fuel filter. also coolant temp or tps sensor could be at fault.have vehicle sensors scan tested for values..
After you dump the fuel in the throttle body it will continue to run on its own or die as soon as it burns up all the fuel you dump in? Do you have access to (Noid lights)? Are both plugs attached to the distributor?
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