Have a friend needs advice on no spark at plugs. The donor was 89 surburban motor,wiring. Short story,replaced fuel pump,computer,dist-cap, rotor, fuel pressure sender,elec. part under cap, anyway he's been trying for two weeks to get fire. Good looking truck. No spark at dist- wire. All advice will be appreciated. Not sure on motor 350-5.0, throttle body. Milton in Weatherford, Tx. Thanks in advance.
If the distributor is an hei, try to replace the module, I put an hei in my 52 p/u it ran for a few days then tried to Start it one day ad no spark. So I ask my friend he said change the Module and sure enough that did it
An 89 has a computer with a TBI. If it uses the original harness, it will have a ALDL connector and a way to wire a service engine light. Use a cheap OBD1 box or short the contacts to read the codes. It could be a dead computer, they are darn cheap now. It does have the computer I hope.
No power to the distributor.......check the oil pressure switch, this may have a fuel pump shut off circuit. Most of them have a three prong oil pressure switch.
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