willie 6/5/2010

1990 Dodge D250 Base 8Cyl5.9L - Transmissions & Drivetrains

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my engine rear real high before shifting gears-a 1-ton dogde

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  Nissan Technical Advisor 2/23/2011

  Check this if this happening when the there's is no load or heavy cargo in the vehicle. The MAP sensor is handling the load of the engine and sending the info to the ECM for shifting adjustments. Check and verify also if the MAP sensor is weak or failing. replace the sensor if found defective.

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