Driver Questionnaire

TM 9-2320-312-24-2

Troubleshooting Section

i01642805

Driver Questionnaire

SMCS Code: 1000; 7569

Table 142

Ask the driver to answer the following questions before attempting to repair an intermittent problem, or a problem with

symptoms but no diagnostic codes. Use this and the response guideline to these questions on the next page.

Yes

Questions

Comments

1. Ask the driver if the Check Engine Lamp turned on during the problem

or if the Check Engine Lamp turned on after the problem.

The Check Engine Lamp stays on for the following time period:

2. Ask the driver for the number of occurrences for this problem.

Ask the driver to duplicate the problem if the problem can be duplicated

in less than one hour.

3. Ask the driver if other shops have worked on the same problem.

If the answer is yes, ask the names of the shops. Also ask for the time

period for the work that was performed.

4. Ask the driver if the engine completely shut down. Ask the driver if the

restart required the use of the ignition key switch.

Ask the driver for the waiting period before the driver could restart the

engine after the shutdown.

5. Ask the driver if the engine had a hesitation, a speed burp or a misfire

without a complete shutdown.

6. Ask the driver if the radio, dash gauges or lights momentarily turn off

during an occurrence of the problem.

Ask the driver if there are any other observations about the truck's

components.

7. Ask the driver if the problem occurs only at specific engine loads.

Ask the driver for additional details.

8. Ask the driver if the problem occurs at a specific engine operating

temperature.

If the problem occurs at a specific engine operating temperature, record

the engine temperature.

9. Ask the driver if the problem occurs only at specific outside

temperatures or temperature ranges.

If the problem occurs only at specific outside temperatures or

temperature ranges, record the outside temperature or temperature

range.

10. Ask the driver if the problem occurs during any other specific

conditions.

11. Ask the driver if the problem occurs at a specific vehicle speed.

If the problem occurs at a specific vehicle speed, record the vehicle

speed.

12. Ask the driver if the vehicle kicked out of cruise control mode, idle

mode or PTO mode.

13. Ask the driver if the problem occurs during the use of the accelerator.

During this time, the engine is not in cruise control mode or PTO mode.

14. Ask the driver if the problem occurs at a specific engine rpm.

If the problem occurs at a specific engine rpm record the engine rpm.