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.
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HOMESERVICE MANUALSJEEP1994WRANGLER SAHARA, AUTOMATIC, 32RHREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGFUEL SYSTEMFUEL PRESSURECAPACITY (VOLUME) TEST
1994 Jeep Wrangler Sahara, Automatic, 32RH
Capacity (Volume) Test
1994 Jeep Wrangler Sahara, Automatic, 32RHSECTION Capacity (Volume) Test
- Relieve fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE under FUEL PRESSURE . Disconnect fuel line on fuel rail. Place fuel line into a graduated container.
- Remove fuel pump relay (located in power distribution center). Using a jumper wire, connect terminals No. 30 and 87. See Figure . Volume of fuel should be one pint. (.47L) in 30 seconds. If fuel volume is not as specified, check for a plugged fuel filter or fuel pump inlet sock.
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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.