Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1990 Ford Probe GL, AutomaticFACTORY OEM SERVICE PROCEDURE
Spark Plug Specifications
SPARK PLUG TYPE
| Application | Motorcraft No. | |||
|---|---|---|---|---|
| 1.9L CFI & MPFI MA | ||||
| Exc. Calibration 8-07E-R10 | (1) AGSF-34C | |||
| Calibration 8-07E-R10 | (1) AGSF-24C | |||
| 2.2L | AGSP-33C | |||
| 2.3L | ||||
| MPFI HSC | AWSF-42C | |||
| MPFI HSC MA | AWSF-42C | |||
| MPFI OHC | AWSF-44C | |||
| 2.5L CFI HSC | AWSF-32C | |||
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SPARK PLUG SPECIFICATIONS
| Application | Gap - In. (mm) | Torque - Ft. Lbs. (N.m) | |
|---|---|---|---|
| 1.9L | .044 (1.1) | 8-15 (11-20) | |
| 2.2L | .043 (1.1) | 11-17 (15-23) | |
| 2.3L | |||
| HSC & HSO | .054 (1.4) | 5.5-10.5 (7.5-14) | |
| OHC | .044 (1.1) | 5.5-10.5 (7.5-14) | |
| 2.5L | .044 (1.1) | 7-15 (9-20) | |
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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