Thread: Engine cranks, fires, immediately dies. Bad RCM, crank sensor, something else?
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Old Oct 22, 2021 | 01:42 PM
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icebook1
Joined: Jan 2006
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Default Engine cranks, fires, immediately dies. Bad RCM, crank sensor, something else?
I'm troubleshooting an issue with our family's 2005 Chrysler Crossfire. The car will crank, generally fire, and almost immediately die.

The SKREEM has been replaced roughly two years ago. Battery is new and fully charged thanks to a tender. Sometimes, the car will crank, fire, and die. Other times, the key can be turned to Start and absolutely nothing will happen. Lights/beeps, yes, but no click or crank attempts from the starter.

We have not replaced the RCM (Relay Control Module) yet. The fuel pump primes every single time when the key is turned to Run, whether the car attempts to run the starter or not. After three starting attempts, whether they are successful or not, the starter will not run again unless the negative battery terminal is disconnected and reconnected. The radiator fan does NOT go into fail-safe and run at full blast at any time during this process. Both key fobs work to lock/unlock the car via remote. The trunk unlocks as designed with the remotes. The spoiler stays down and does not rise up on its own (which is a sign of low voltage, I guess).

This is a fun new issue, the car belongs to my mom and has 19k miles on the odometer. She does not drive it often and keeps it on a battery tender when not in use. The last time she drove it, she unplugged the tender and had a full day of driving with multiple starts/stops and ignition cycles with zero issues. She put the top up and down several times and that worked fine.

Any help would be appreciated, I took this video when I visited them but we do not live super close to each other. So, I tried to gather as much info as possible and now I need to diagnose and buy some parts a bit blindly. Wondering if the RCM is going bad (or relay(s) in it) or the crank sensor or potentially fuel pressure regulator. This issue showed up with the car totally cold, it had been parked for several weeks when my folks first observed this happening.

Video of the issue is here:


 
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