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Old 05-07-2019, 11:28 AM   #1
VueGuyz
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Question Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

Having a problem getting fuel to start after engine change. Engine starts and runs when fuel pump is jumped with 12v. No codes in OBD. Any suggestions ?

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Old 05-07-2019, 06:33 PM   #2
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

If you're sure the Fuel Pump is good, I'd go right to the ECM on that one!
Not sure of the check procedure But it sounds like the fuel pump is not getting powered on after the Key-On Signal!
If you don't have any kind of kill switch or Alarm shut off - I'd check that .

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Old 05-07-2019, 09:46 PM   #3
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

If the engine starts and runs except for the fuel pump, the ecm is more or less fine since the entire EFI system runs off the ecm.

Did you replace the ecm or not? Checked for any blown fuses (fuel pump)? Is security flashing when starting?

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Old 05-08-2019, 08:43 AM   #4
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

TheftLock issue?

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Old 05-08-2019, 02:05 PM   #5
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

I will look into the theft lock issue. Thanks

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Old 05-11-2019, 11:29 PM   #6
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

Passlock reset did not work. No power to the Fuel System Control Module at all. I checked and changed all relays and fuses to fuel pump. Must be a bad wire or ground somewhere. All suggestions are appreciated. All plugs on harness are intact and connected. Any ideas where to focus next

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Old 05-12-2019, 07:42 PM   #7
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2004 ION-2 Sedan
Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

If the security light Is on For bulb check But off After bulb check The security system is OK, Key on engine off is the check engine light on? Does the fuel pump momentarily have power when the Ignition is first turned on? Is the FSCM 10 amp fuse and the FSCM 20 amp fuse good with power (Both are in the instrument panel fuse block ). are the G105 and G106 grounds attached to the engine Left rear corner of the engine Just below the rear of the left cylinder head (head closest to the front of the vehicle)

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Old 05-14-2019, 11:32 AM   #8
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

Security light is off. Only engine code is U109. No power to fuel pump at all. Im on work travel will recheck fuses and ground wires this weekend. Thanks for all advice

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Old 05-18-2019, 08:26 PM   #9
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Default Re: Fuel Delivery Issue on 08 Vue 3.5l after Engine Change

Problem fixed thanks....current checked at fuse...found broken fuel pump wire under front seat. Reattached broken wire and car is running nicely. Thanks for all the tech help.

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