Ranger 4WD L4-140 2.3L SOHC (1984)
Idle Speed: By Symptom
Technical Service Bulletin # 841718
Date: 840814
Engine - Dieseling When Turned OFF
Article No. 84-17-18
DIESELING - (2.0L/2.3L) - ENGINE
TEMPERATURE BELOW 160~ AND/OR A/C is ON - MANUAL OR AUTOMATIC TRANSMISSION
LIGHT TRUCKS 1983-84 RANGER
CALIBRATIONS: 3-49G-R17, 3-49T-R17, 3-49Y-R17, 3-49G-R20, 3-49T-R20, 3-49Y-R20, 3-49H-R16 and 17, 3-49S-R15 and 16 - 1983-84
Dieseling may occur on 2.0L and 2.3L engines when the ignition is turned off before the coolant temperature has reached 160 ~F, and on A/C equipped
vehicles, when the A/C is operating.
If engine dieseling occurs when the ignition key is turned off, perform the following:
^
Check engine idle RPM and set, if required, to specification shown on the vehicle emissions decal located on the radiator support.
^
If dieseling continues with the idle set to specification, replace the parts listed below.
For vehicles with 2.0L engines and manual transmission -
^
Replace Accelerator Cable Assembly with P/N E3TZ-9A758-E For vehicles with 2.3L engines and automatic transmission -
^
Replace the Accelerator Cable Assembly with P/N 9A758 and the kick down bellcrank with P/N 9K713. For vehicles with 2.3L engines and
manual transmission -