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Old 09-17-2023, 10:51 AM   #1
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Engine won't start

Have a 2022 redhawk24b Ford e-450. Engine cranks but won't start. Generator shut off also. But today generator is running like normal. Any ideas on cause? Thanks
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Old 09-17-2023, 10:58 AM   #2
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Pretty vague info to even guess.

Usually there are two things that cause a "no start". Lack of fuel or lack of spark. So you start with one and eliminate that before going to the other.
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Old 09-17-2023, 07:16 PM   #3
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For the main engine (Ford), try spraying some starting fluid in the intake and see if it starts. If so, no fuel going into the engine. Check fuel filter, then fuel pump.

If it still doesn't start, could be no spark for the plugs. Could be CPS?

Hard to tell without checking these first.
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Old 09-18-2023, 05:46 AM   #4
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First check the fuel pump fuse under the hood.
If you're going to "regret it in the morning", sleep until noon.

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Old 09-18-2023, 10:13 AM   #5
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Originally Posted by JFlightRisk View Post
First check the fuel pump fuse under the hood.
Or the accident inertia switch.
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Old 09-18-2023, 10:29 AM   #6
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Just to give you an idea on the range of problems you could be having, I had the same condition with my 2018 Greyhawk. Went through ALL fuses and checked each and every one with meter. Fuel pump seemed to be working (checked audibly). Checked various other things, but I wasn't going to go too deep since it was under warranty.

Had it towed to Ford facility, who discovered (after a lengthy discussion with Ford support) that one of the computers was inop. The RCM (Restraint Control Module). Not the ECM or BCM, but the RCM. Engine would crank all day long and never start.

How did that happen? I'm pretty sure it had something to do with a nearby lightning strike, believe it or not.

ETA: Ford got away from the old-style inertia switches a few years ago. The old ones could be triggered accidentally, or reset if accidentally triggered. I believe it was located in the passenger side footwell on the E-450. I looked everywhere for that thing trying to find it in my unit. The newer style is supposedly reset by cycling the ignition switch a couple times, and does not have an on-board "reset" button like the older ones.

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