Oil Pressure Gauge - Erratic or Low Reading

88ford04
^ GAUGE - OIL PRESSURE - ERRATIC OR LOW READING - VEHICLES BUILT BEFORE 10/01/87

^ ENGINE OIL - OIL PRESSURE GAUGE INDICATES ERRATIC OR LOW READING - VEHICLES BUILT BEFORE 10/01/87

Article No. 88-5-14

LIGHT TRUCK: 1987-88 F-SERIES, BRONCO

ISSUE: An oil pressure gauge that indicates an erratic or low reading when the engine oil pressure is within specification may be caused by the oil pressure sender. The oil pressure sender may not work properly with the magnetic oil pressure gauge.




ACTION: To correct this, install a new design oil pressure sender and new design resistor wire assembly using the following service procedure. Refer to the oil pressure sender and resistor wire application chart on this page for the correct service parts.

1. Remove the existing oil pressure sender.

2. Install the new design oil pressure sender. Torque oil pressure sender to 10-18 ft.lbs. (13-24 N-m).

FIGURE 5:

3. Connect the female terminal end of the 20 ohm resistor wire assembly to the oil pressure sender, Figure 5.

4. Connect the male terminal end of the 20 ohm resistor wire assembly to the vehicle wire harness, Figure 5.

PART NUMBER PART NAME CLASS

E6SZ-9278-A Oil Pressure Sender AG
E8TZ-9278-A Oil Pressure Sender BM
E6SZ-9F291-A Resistor Wire Assembly AG

OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION: 880514A
TIME: 0.4 Hr. DLR. CODING: Basic Part No. 9278 - Code: 09