Engine - Poor Performance
90ford34 Article No. 90-21-7PERFORMANCE POOR - 3.0L SHO - 12A581 WIRE HARNESS CHAFING - CARS BUILT TO 6/22/90
FORD: 1990 TAURUS SHO
ISSUE: Poor engine performance may be caused by the 12A581 engine control wiring harness rubbing on the lower front right intake plenum support bracket studbolt.
ACTION: Inspect for damaged wiring and replace the existing studbolt with a standard hex head bolt. Refer to the following procedure for service details.
Figure 1:
1. Pull the 12A581 engine wiring harness up from the studbolt area and check for worn wires.
NOTE: DAMAGED AREA ON WIRING WILL BE LOCATED ABOUT 12"(305MM) FROM THE 60 PIN EEC CONNECTOR, FIGURE 1.
2. Repair any damaged wires and retape the harness as required.
NOTE: IF WIRES ARE NOT DAMAGED, PERFORM STEPS # 3 & # 4 ANYWAY TO AVOID FUTURE POTENTIAL CONCERNS.
3. Replace the lower studbolt with a standard (8-1.25 x 35) hex head bolt (90119-08153), Figure 1. Tighten it to 11-17 lb.ft. (15-23 N-m).
4. Check to be sure that the wiring harness is secured away from any abrasive area.
PART NUMBER PART NAME CLASS
90119-08153 Hex Head Bolt (8-1.25 x 35) S
OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION TIME
902107A Replace Bolt 0.6 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
6007 62
OASIS CODES: 203200, 607000