3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

04 dodge backfires

Old 02-12-2019, 10:50 AM
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04 dodge backfires

hey guys I was wondering if anyone knew what was going on with my truck it doesnít do it when itís cold but when it warms up and I put it to the floor itíll hit about 15-1700 rpms and then lag and attempt to back fire I was thinking it could be my injector pump not supplying enough fuel but I wanted to know what you guys think? And once again it only does it when itís warm about 170-200...
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Old 02-12-2019, 03:46 PM
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diesels don't backfire
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Old 02-12-2019, 06:59 PM
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When was the last time the fuel filter was changed?
Start fast or require extra cranking?
Any smoke when coughing?
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Old 02-12-2019, 07:27 PM
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There are numerous reasons a diesel can backfire. Out the exhaust or in the intake.

The original poster hasn't provided enough information on his issue for anyone to provide recommendations.
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Old 02-12-2019, 08:15 PM
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On my 01 I know different year and different pump etc but when my vp44 went out one time i was driving through the Eisenhower tunnel, kids were following us in another vehicle. All of a sudden sounded like a cannon went off in the tunnel. Kids told me about 3 or 4 feet of flame came out the exhaust. I had already had the pump diagnosed a few days earlier and was just waiting for my appointment a couple days in the future to get the vp replaced under warranty at the time
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