[chrismlindsay]

This is a good strong engine with low miles and was running perfectly until it just STOPPED running as I was cruising down the highway in the rain. I initially suspected the fuel pump as it had been "noisy" as of late.. So, Pump was replaced, it's fine and working if I bypass, relay is good, fuse is good but it won't pump when I turn the ignition on or crank engine. I bypassed and pumped fuel but still no start. Now believing there's no ignition as well. I replaced camshaft sensor, crankshaft sensor, checked all my groundings (so far as I could tell) and even replaced the ECM. I'm about to look into the ignition control module but I'm under the impression that it doesn't control or have anything to do with the fuel pump being activated so I'm doubtful and that part is expensive and not easily taken out for inspection. Any suggestions? Would LOVE to get some good suggestions at this point.

 

[rimara]

This is your ignition switch. Study it and look which fuses should be powered with the key in start. Probe the top of the fuses for voltage when it's cranking. Do they have voltage? If not, then the problem is probably the ignition switch.


Check these ground lugs:

 

[chrismlindsay]

Thank you for your suggestion. I will look into this over the weekend.

 

[chrismlindsay]

would I be correct in assuming that the ignition control module/coils does not have any impact on the fuel pump? I'd like to avoid mucking with it and breaking rusty bolts if it's not a likely culprit.

 

[rimara]

would I be correct in assuming that the ignition control module/coils does not have any impact on the fuel pump? I'd like to avoid mucking with it and breaking rusty bolts if it's not a likely culprit.

Correct, the ECM sends a signal to the fuel pump relay. The control side of the fuel pump relay also grounds on the ground lug above the oil filter. The ECM and ignition control get ground there too.

 

[chrismlindsay]

thanks again, I'll check it all out and let ya'll know how it went.