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93 4.3cpi 2wheel wont start

  #1  
Old 11-02-2008, 11:40 AM
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Default 93 4.3cpi 2wheel wont start

i have been all over this vehicle.new fuel pump,filter,lines going into plenum,spider{fuel pressure reg,injectors}plugs,everything!it will not start.i unpluged the new fuel pressure reg to make sure gas was getting to it,turn the key,plenty of fuel.put it back together,wont fire{i have spark thats all new too}.took a spark plug out to see if the injectors were spraying,crank the key,nothing but air.weeks i have been trying to figure this out.any ideas anyone?gas tank is new also.[:@] [:@]
 
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Old 11-02-2008, 04:06 PM
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Default RE: 93 4.3cpi 2wheel wont start

I have seen a few different people have problems with the electrical lines/connections inside the plenum not properly activating the injector. You may want to see if that is the cause.
 
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Old 11-03-2008, 11:03 AM
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Default RE: 93 4.3cpi 2wheel wont start

how many volts should there be?
 
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Old 11-03-2008, 11:47 AM
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Default RE: 93 4.3cpi 2wheel wont start

Have you checked the timing. It could have jumped time and it will never start. Bring the number 1 piston to TDC, Check that the rotor is pointing to the number 1 plug. The Rotor should be pretty close to the # 1 wire location at the distributer cap.
 
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Old 11-03-2008, 01:51 PM
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Default RE: 93 4.3cpi 2wheel wont start

it starts with fluid.then dies.has perfect time.
 
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Old 11-03-2008, 02:11 PM
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Default RE: 93 4.3cpi 2wheel wont start

i have 12 volts to the plug outside the plenum.im going in the plenum AGAIN to see if i have power to the injector itself.i hope i dont.
 
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Old 11-04-2008, 06:19 AM
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Default RE: 93 4.3cpi 2wheel wont start

how about fuel pressure, Fuel Pump Relay, Fuel Pump Regulator.
 
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Old 11-04-2008, 08:10 AM
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Default RE: 93 4.3cpi 2wheel wont start

Are injectors pulsing, I do believe you can check the Injectorpulse with a Noid light. (At least that's my understanding of a NOID Light) That would tell you if the injectors are being controlled by the computer.
 
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Old 11-04-2008, 09:38 AM
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Default RE: 93 4.3cpi 2wheel wont start

The problems that I have seen and heard about surrounded the electrical connection to the injector whether from corrosion or relaxing of the connector plastic.
 
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Old 11-05-2008, 02:11 PM
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Default RE: 93 4.3cpi 2wheel wont start

i took back spider{fuel pressure reg,injectors}and got a new one just to be sure.same thing.i have fuel pressure.with the plenum off i can see the gas through the line,it makes it all the way to the spider fine.but when i hit the key,no fuel sprays out of the injectors at all.i have twelve volts to the spider as soon as i hit the key.im gonna go check the conecting clip real good,thats a good idea swart .ill be back.
 

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