Question about 2007 Dodge Sprinter

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2007 Sprinter High/Low Boost

06/2007 Sprinter 2500 with OM 642 3.0L engine, approx 35k miles on vehicle, MIL on. Code for High and code for Low boost stored showing problem first appeared 3k miles ago but customer just noticed problem recently. Intermittent extremely low power. Problem dis-appears on restart, but re-appears within 20 miles. Minor intake air leak (pressurized intake charge) at o-ring on charge air cooler causing hissing sound, possibly due to over pressurization. O-ring on order.
Also, cannot manually or with computer reset service indicator.
Thanks for any help you can offer,
Jeff Silva
ASE Master Tech
Owner Big Island Tool and Equipment

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  • tatatau Sep 04, 2008

    Although no one replied to this posting, I have found the problem. Early model Sprinters had a problem with the turbo resonators failing. The 2007's have an issue with the o-ring connecting the resonator to the pipe leading to the intercooler and the o-ring from this same pipe where it connects to the flex hose going to the intercooler. For some reason the o-rings are failing around 30,000 miles and kicking a code for high/low boost. The same code can also be set by egr problems, but check the o-rings first. If there is oil in the aluminum pipe, the o-rings should be replaced. You may also hear a suction sound, but not always.

    As for resetting the service indicator, I have been told this is a common problem with no answer as to date.

    Thanks to Greg who took the time to contact factory tech support.

  • tatatau Sep 11, 2008

    Also check the swedged steel fitting on the rubber flex hoses to the intercooler. Apparently they may have been crimped too tightly at the factory causing the rubber to tear and leak.

  • jyappl Nov 27, 2008

    I have the same or simular problem with my 07 built o8 modle. sudden lossof power . will not rev above 2000 rpm up shifts fast. Restart engine and it goes away. some times for days and other times it happens a few times a day. Sometimes the check engine light comes on and goes off after a few restarts. exhaust sound also gets deeper when the problem happens.

    I'll check resonator O rings.




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Check turbo resonator

Posted on Oct 07, 2009


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