1990-1997 Geo Prizm Spark Plug Replacement Torque Specs

1.8L I4

Applies to 1990, 1991, 1992, 1993, 1994, 1995, 1996, and 1997 Geo Prizm

Labor Time:1 hours

🔧 Torque Values5 specifications

Component	lb-ft	Nm	Notes
Cover Bolts	11	15	—
Engine Cover Clips	2	3	—
Ignition Coil Bolt	8	10	—
⚠️ Mounting Bolts	33	45	—
⚠️ Spark Plug	14	19	Gap before install

⚠️ = Critical torque value | Always verify with vehicle-specific service manual

⚠️ Some critical specs are estimated. Please verify sequence.

2016-2024 1.5L I4 TSI

2014-2019 1.0L I3 Turbo

1990-1993 2.5L I4

2010-2021 1.8L I4 Flex E.torQ

1999-2002 2.2L I4

2020-2025 1.5L I4 Turbo Flex SQRE4T15C

The primary torque specification for spark plug replacement on a 1990-1997 Geo Prizm is 15 Nm (11 lb-ft).

There are 5 torque specifications for spark plug replacement on the 1990-1997 Geo Prizm 1.8L I4, covering all related fasteners and components.