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 MANUALSPLYMOUTH1984HORIZON BASE, 1.6 AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 10 (ENGINE CONTROLS - BASIC TESTING)IGNITION CHECKSDIRECT IGNITION SYSTEM (3.3L & 3.5L)SPARK TEST
1984 Plymouth Horizon Base, 1.6 A
Spark Test
1984 Plymouth Horizon Base, 1.6 ASECTION Spark Test
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 1994 Plymouth Sundance, 1994 Plymouth Acclaim, 1994 Eagle Vision, 1994 Dodge Spirit, and 1994 Dodge Shadow. However, it is still accessible from the selected car via links, so may be relevant.
- Remove spark plug cable from cylinder No. 2. Insert a known-good spark plug into spark plug cable. Ground spark plug on engine. Crank engine and check for spark. Repeat procedure at remaining cylinders.
- If no spark or an irregular, weak spark is present at one or more spark plug cables, go to IGNITION COIL RESISTANCE TEST. If no spark is present, go to NO-START TEST.
RENDER: 1.0x
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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.