Engine Controls - Tests W/O Codes - Gasoline: Introduction

NOTE: Unless otherwise specified, references to Pickup include the F350 Super Duty commercial chassis.

Use this article to diagnose driveability problems or for reference to correct component repair procedure. Follow diagnostic or test procedures listed in the articles referenced by these charts. Intermittent faults may also be diagnosed using the procedures in this article.

NOTE: Some driveability problems may have been corrected by manufacturer with a revised computer calibration chip or computer control unit. Check with manufacturer for latest chip or computer application.

Symptom checks can direct the technician to malfunctioning component(s) for further diagnosis. A symptom should lead to a specific component or system test and/or adjustment.

Use intermittent test procedures to locate driveability problems that DO NOT occur when the vehicle is being tested. These test procedures should also be used if a soft (intermittent) trouble code was present, but no problem was found during self-diagnostic testing.

NOTE: For specific testing procedures, see I - SYS/COMP TESTS article in the ENGINE PERFORMANCE Section. For specifications, see SPECIFICATIONS or ADJUSTMENTS article in the ENGINE PERFORMANCE Section.