What is more likely?

Shop just replaced the third fuel pump control module in 5 weeks. The last one didn't last one day. They said something deeper was likely causing the FPCM to fail but I don't think they ever tested the actual module off the truck.

What is more likely - A) there is an underlying issue causing my truck to burn out fuel pump control modules or B) the "failed" fuel pump control modules were not actually failing and instead, there was a loose connection somewhere causing it to seem like it was failing?

Thanks in advance.

 

I don't know but you can bypass the module and just hard wire the pump into the ignition with a relay. Might be a solution to look at.