TM-9-2320-272-23-1

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-1 - Page 358 of 1313

FIELD MAINTENANCE

ENGINE SURGES

INITIAL SETUP:

Tools and Special Tools

Tool Kit, General Mechanic's: Automotive

(Volume 5, WP

0826, Table 1, Item 56)

Personnel Required

(2)

References

Point to Point Schematics

References (cont.)

Volume 2, WP

0254

Volume 2, WP

0268

Volume 2, WP

0269

Volume 3, WP

0365

Equipment Condition

Vehicle parked and engine shut down.

(TM

9-2320-272-10)

TROUBLESHOOTING PROCEDURE

ENGINE SURGES

NOTE

Conduct these malfunction tests if engine speed is unstable or engine surges at all speeds.

This procedure will check fuel lines for leaks, obstructions, or damage and throttle linkage

and modulator cable for proper operation and adjustment.

TM 9-2320-272-23-1

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