Blower Motor - Intermittently/Completely Inoperative

90ford25 AIR CONDITIONING - ATC - BLOWER - INTERMITTENTLY OR COMPLETELY INOPERATIVE
Article No. 90-18-7
FORD: 1990 CROWN VICTORIA

LINCOLN-MERCURY: 1990 GRAND MARQUIS, TOWN CAR
ISSUE: An intermittent or complete loss of blower motor operation may be caused by a loose electrical connection at the variable blower speed controller (VBSC).

ACTION: Secure the electrical connection at the connector end of the VBSC with a tie strap. Refer to the following procedure for service details.


1. Locate the VBSC which is on the evaporator assembly in the engine compartment.

2. Check to see if the electrical connector at the VBSC is fully seated. If necessary, seat it firmly against the VBSC.

3. Check the blower operation.

Figure 1:

4. If the blower operates properly, install a tie strap (N801493-S) as shown in Figure 1.

5. If the blower continues to operate intermittently or fails to operate, check the electrical connection at the VBSC to be certain that the connector is fully seated.

6. If the condition persists, perform the blower operation diagnostics as outlined in the 1990 Lincoln Town Car Shop Manual, Section 36-75.

7. If required, install a new VBSC. Refer to the 1990 Lincoln Town Car Shop Manual, Page 36-75-27 for service details.

NOTE: IF THE VBSC DOES REQUIRE REPLACEMENT, INSTALL A TIE STRAP (N805955-S) AS SHOWN IN FIGURE 1.



OTHER APPLICABLE ARTICLES: None
WARRANTY STATUS: Eligible Under Basic Warranty Coverage
OPERATION DESCRIPTION TIME
901807A Install Tie Strap 0.3 Hr.
901807B Install VBC 0.3 Hr.
DEALER CODING
BASIC PART NO. CONDITION CODE
19E624 42
OASIS CODES: 208000, 208300