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 Post subject: CRD wrangler, crank no start
PostPosted: Wed Jan 04, 2023 6:13 am 
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Joined: Fri Dec 02, 2022 5:48 am
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:JEEPIN:

I have a 2007 4 door wrangler jk. It's a 2.8 CRD.

The engine will crank but not start. The tachometer will show the cranking rpm for 3 seconds, then the tacho drops to zero, even if I keep cranking.

The fuel rail will build pressure initially, but when the tacho drops to zero it seems to drop the fuel rail pressure too.

If crank it for only 2 seconds, before the tach drops to 0, the pressure will build, but it won't fire.

I've replaced the solenoid on the back of the fuel rail. The previous owner replaced the crank position sensor.

I think it might be the ECU detecting a fault, any ideas?


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 Post subject: Re: CRD wrangler, crank no start
PostPosted: Tue Apr 11, 2023 8:54 pm 
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Joined: Sat Apr 17, 2010 3:29 pm
Posts: 1167
Hello, adharvey:

Is your 2007 JK Wrangler 2.8L CRD engine a V.M. Motori R428 engine or a V.M. Motori A428 engine?

Can you post some photographs of the engine bay, please? When you take the photographs, please remove the engine sound deadening beauty cover.

A private message and an e-mail message has been sent.

Jeff


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