1975 Jeep J20

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1975 J20.

Full specifications

Engine, drivetrain, dimensions and economy.

Condensed service procedures for routine maintenance. Procedures that require dealer diagnostic equipment are identified and summarized only.

Key fob — remote (RKE) programming programming new fob buttons Dealer tool OEM · verified

Tool required	DRBIII scan tool (dealer / locksmith)
Why	Transmitter codes are written into the receiver in the passenger door module

Anti-theft (SKIS) — module initialization after immobilizer module replacement Dealer tool OEM · verified

When needed	After Sentry Key Immobilizer Module (SKIM) replacement
Tool required	DRBIII scan tool
Also required	The vehicle's four-digit PIN code

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

Catalyst system efficiency below threshold — Bank 1

Random / multiple cylinder misfire detected

System too lean — Bank 1

Evaporative emission system leak detected — large leak

Coolant thermostat below regulating temperature

Evaporative emission system leak detected — small leak

Decode factory build data for a specific vehicle by VIN.

VIN

Decode a VIN to confirm the transmission and build data for a specific J20. OEM

Build data

Plant, GVWR class, engine and body data for any 17-character VIN.

Recalls

Check open recall campaigns against a specific vehicle by VIN.

Cross-vehicle references for the kinds of data on this page.