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 MANUALSDODGE AND RAM1990SHADOW BASE, 4D HATCHBACK, 2.5 J, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - BASIC TESTINGFAILURE TO START TEST 2.2L, 2.5L & 3.0L
1990 Dodge and Ram Shadow Base, 4D Hatchback, 2.5 J, Automatic
Failure To Start Test 2.2L, 2.5L & 3.0L
1990 Dodge and Ram Shadow Base, 4D Hatchback, 2.5 J, AutomaticSECTION Failure To Start Test 2.2L, 2.5L & 3.0L
NOTE:
Perform TESTING SPARK AT COIL before proceeding with test.
- Ensure sufficient battery voltage is available to operate cranking and ignition systems. Crank engine for 5 seconds while monitoring voltage at coil positive terminal.
- If voltage remains near zero during entire period of cranking, see appropriate SELF-DIAGNOSTICS article to check SBEC and ASD relay. If voltage is near battery voltage and drops to zero after 1-2 seconds of cranking, see appropriate SELF-DIAGNOSTICS article to check distributor pick-up circuit to SBEC.
- If voltage remains near battery voltage during entire 5 seconds, turn ignition off. Disconnect SBEC 60-pin connector. Check 60-pin connector for loose terminals (push-outs).
- Remove positive lead from coil. Connect a jumper wire between battery positive terminal and coil positive terminal. Using a specially constructed jumper wire, momentarily ground SBEC harness connector terminal No. 19. See Fig 1 . Spark should be generated when ground connection is disconnected. See Fig 2 .
- If spark is generated, replace SBEC. If no spark was generated, use special jumper wire directly on coil negative terminal. If spark is produced, repair wiring harness for an open circuit. If no spark is produced, replace ignition coil.
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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.