Originally Posted by
Maxmill59
For 3 weeks now we are facing an issue with a fluctuating fuel flow.
1) Other than the fuel flow and EGT indications, does the engine operation change when you notice the flow problem?
2) Have you checked accuracy and serviceability of the fuel flow sender/indicator?
3) When was the last time the injectors were cleaned?
4) Do you have TCM injectors or aftermarket injectors?
5) Have you performed the Fuel System Operational Check per
TCM Publication M-0, Section 6-4.7.4.?
6) Have you performed a "bottle flow check" of all the injectors?
7) What STC was the IO-550 installed under?