So my dad purchased a brand spanking new engine outfitted it with brand new everything and got the mechanic to install everything, and for some reason there is a crankshaft and camshaft sensor code going off, my dad mentioned something about a power surge setting them off when the truck gets started up. Can anyone advise as to why? I was thinking it might be a bad ground or something. They've replaced the cam and crank sensors with brand new ones and even replaced the harmonic balancer with a genuine ford one thinking it might be causing the surge since it was aftermarket.

any insight would be awesome thanks! :)

 

Welcome to the forum

The common denominator for both sensors is the large, I think 42pin, Connector on the engine, not uncommon to get a bad connection there, especially if someone used too much dielectric grease.
Dielectric grease prevents water intrusion and DOES NOT conduct electricity, so if any of this gets on the metal connectors then they DO NOT connect.

So I would start there

Next, there are several Crank sensor and Cam sensor codes
Post the EXACT Codes you got, no "I think it was..........?"

Reason being, and mechanics should know this, is that if one of these sensors misses a "beat" then it can set code for that sensor AND the other sensor because BOTH of these are about engine RPM timing, so they are "compared" to each other, to make sure they match.


Only other connection is the Computer(PCM) connector, it can get water inside, Crank and Cam wiring are not next to each other on the connector, but because of above relationship, one problem could set two different codes

Examples of crank and cam codes
P0335 Crankshaft Position Sensor A Circuit Malfunction
P0336 Crankshaft Position Sensor A Circuit Range/Performance
P0337 Crankshaft Position Sensor A Circuit Low Input
P0338 Crankshaft Position Sensor A Circuit High Input
P0339 Crankshaft Position Sensor A Circuit Intermittent
P0340 Camshaft Position Sensor Circuit Malfunction
P0341 Camshaft Position Sensor Circuit Range/Performance
P0342 Camshaft Position Sensor Circuit Low Input
P0343 Camshaft Position Sensor Circuit High Input
P0344 Camshaft Position Sensor Circuit Intermittent

P1174 Cam Sensor Fault
P1175 Cam Control Fault
P1176 Cam Calibration Fault
P1177 Synchronization Fault

And there is more, lol.

Point being, the exact code is needed, and also you need to look at what codes the computer DID NOT use, it chooses a code for a reason, so you can eliminate possible problems by the codes it did not use

 

All my connections were full of white lithium grease.
I spent the day with contact cleaner, pipe cleaners, a tooth brush and compressed air getting it all out.
It was everywhere !