Symptom/Test Menu
WARNING: This page is about a different car, the 1989 Mercury Sable, 1989 Mercury Cougar, 1989 Lincoln Continental, 1989 Ford Thunderbird, and 1989 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS BY SYMPTOM (SYMPTOM-TO-CIRCUIT TEST MENU)
| Symptom | Go To: Circuit Test No. (Step No.) |
|---|---|
| Runs Rough, Misses, Stalls, Lacks Power, Rough Idle, Surges, Stalls In Self-Test | D19 (2) |
| Stalls At Idle Or During Self-Test | D19 (1) |
| Stalls When Parking (AXOD SEFI only) | B15 (3) |
| A/C Stays On During WOT (AXOD SEFI & SC SEFI only) | D23 (44) |
| A/C Stays On During WOT (RWD SEFI only) | D7 (11) |
| A/C Not Functioning (AXOD SEFI & SC SEFI only) | D23 (42) |
| A/C Not Functioning (RWD SEFI only) | D7 (11) |
| Low Idle With A/C On | B13 (10) |
| High Idle In "Drive" A/T Trans Only (RWD SEFI only) | B13 (15) |
| Shift Indicator Light Always/Never On (SC SEFI only) | D6 (1) |
| "CHECK ENGINE" Light Always On | D11 (1) |
| "CHECK ENGINE" Light Never On | D11 (2) |
| "CHECK ENGINE"/"CHECK DCL" Message On (AXOD SEFI only) | D11 (8) |
| "CHECK ENGINE" Message On (AXOD SEFI only) | D11 (7) |
| "CHECK ENGINE" Light On Intermittently | D11 (5) |
| "CHECK ENGINE" Light Flashes With Erratic Idle | D11 (6) |
| Lack Of Power At WOT | N/A |
| Tachometer Inoperative | N/A |
| Stumble After Hot Restart | C1 (19) |
| Fuel Pump Runs With Engine Off (SC SEFI only) | C2 (14) |
| Gasoline Fumes In Engine Compartment | D4 (1) |
| Detonation/Spark Knock (SC SEFI only) | D8 (1) |
| Poor Performance, Low Or High Supercharger Pressure (SC SEFI only) | D9 (6) |
| Engine Cooling Fan Inoperative (Single Speed Fan) | N/A |
| Engine Cooling Fan Inoperative (Dual Speed Fan) (AXOD SEFI & SC SEFI only) | D23 (17) |
| Cooling Fan Always On (AXOD SEFI only) | D23 (30) |
| Cooling Fan Always On (SC SEFI only) | D23 (33) |