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 MANUALSCHEVROLET1991BLAZER FULL SIZE V8-350 5.7LREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSIGNITION CABLE
1991 Chevrolet Blazer Full Size V8-350 5.7L
Ignition Cable
1991 Chevrolet Blazer Full Size V8-350 5.7LSECTION Ignition Cable
The spark plug wiring is a carbon impregnated cord conductor encased
in a 7mm or 8mm diameter rubber jacket.
RESISTANCE VALUES
0-15 inch cable 3,000 - 10,000 ohms.
15-25 inch cable 4,000 - 15,000 ohms.
25-35 inch cable 6,000 - 20,000 ohms.
NOTE: Longer wires should measure about 5,000 to 10,000 ohms per foot.
RENDER: 1.0x
NO RELATED
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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.