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I have a 1987 ford ranger the engine turns over but it wont start
Has new fuel pumps,eec relay, fuel pump relay, fuel lines, fuel pressure regulator, fuel injectors and are reading 14.4-14.8 volts, new distributer cap and rotor, wires and plugs, coil(is getting spark to the plugs, already tested spark), ground wires and power wires, bypassed the already working inertia switch, new computer, checked all wires from main harness,new solenoid, new battery, map sensor and possibly more.Also complete gasket set was installed
Re: I have a 1987 ford ranger the engine turns over but...
Shoot a little ether in the intake. If it doesnt start then, consider maybe the distributor is 180 degrees out.If it does start with ether, check your fuel flow to the piston. I am assuming that this truck hasnt started since all these new things were put on.
Re: I have a 1987 ford ranger the engine turns over but...
Spark at plugs? Fuel filter? Pressure on injector delivery line? Pressure relief valve? You may be able to measure fuel pressure at the pressure relief valve location. and return line. If you have spark, I'd say it's a fuel supply problem
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It may BE losing fuel pressure, Robert. Check the fuel pressure and flow rate at the fuel rail. Filter, plugs, and cap have nothing to do with fuel pressure - your fuel pump and pressure regulator are the only things that can change fuel pressure very much.
There are 2 relays in the relay box that could cause this problem the EEC relay and the FUEL pump relay the best test for EEC relay back probe the throttle position sensor for the 5 volts reference signal run engine and watch to see if you lose this voltage. and fuel pump relay install a fuel pressure gauge to fuel rail service port and check to see if pressure drops to zero.
You would check fuel pump pressure with a gauge and try to verify the engine is lacking fuel to proceed. If it does not start, have you checked the EEC and fuel pump relays to verify the pump is running ?
You would check the EEC relay, and the fuel pump relay, then check for fuel pressure with a gauge and find out if the pump is running when the engine dies.
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