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2000 Isuzu N NPR-HD 4.8L Poor Fuel Economy, diminished power
Posted to Asian Driveability on 6/17/2012 8 Replies

This truck runs great but, does not have the power that it used to have and its mileage has decreased by about 2 mpg.

I can't communicate with it with my scanner. There is no check engine light on.

I'm not sure what to look at or where to turn. Please help.

8 Replies Received (View Replies)

 
Message Closed w/Summary

car Vehicle Data

2000 Isuzu N NPR-HD

VIN JALB4B147Y
Engine4.8 L / 4 cyl / DIESEL
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, Diminished Power
OccursAlways
Message Closed w/Summary

car Vehicle Data

2000 Isuzu N NPR-HD

VIN JALB4B147Y
Engine4.8 L / 4 cyl / DIESEL
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsPoor Fuel Economy, Diminished Power
OccursAlways