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2018 Navigator will crank but not fire

Collins.page

Member
Joined
Jun 6, 2025
Messages
5
Need a little help here guys, so far there have been no warning lights or codes, just the cranking up fine but refusing to start up, Dont worry bout the battery, I checked it and its pretty solid so far, the starter is definitely working fine nd this happened out of nowhere after it had been running fine 3 days ago, tried the usual basics already, checked fuses, relays, gave the fuel pump fuse a look, but I'm not seeing anything obvious,
Help a brother please
 
So, if the engine cranks but just won't start, you might want to take a good look at that crankshaft sensor. Also, give a listen for the fuel pump, it's super important! If there's no spark or no fuel flow, that could be the culprit. Have you had a chance to check for spark or maybe even tried some starter fluid? Oh, and is there any security light on the dashboard? Let us know what you discover
 
If you've got a spare sensor handy, swapping the crank sensor is usually the quickest test, otherwise you might need a scan tool that reads live data to see what's going on during cranking, dont fret, I'm quite sure its not something too big
 
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