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.
HEI Module - Testing
1983 Buick Century V6-260 4.3L DSLSECTION HEI Module - Testing
Model Year 1983
Bulletin No. 83-116
File In Group 68
Number 2
Date May '83
SUBJECT: HEI MODULE TESTING
Known good HEI modules and new modules from service stock may fail a test using the HEI tester, J-24642, if the tester ground is improperly connected. When using the tester, connect or contact the alligator clip for the tester ground directly to the flat metal surface on the bottom of the HEI module (refer to Figure 1). The metal eyelet on the module is not always in contact with the metal ground surface on the bottom of the module and, therefore, should not be used when testing the module.
Bulletin No. 83-116
File In Group 68
Number 2
Date May '83
SUBJECT: HEI MODULE TESTING
FIGURE 1:
FIGURE 2:
Known good HEI modules and new modules from service stock may fail a test using the HEI tester, J-24642, if the tester ground is improperly connected. When using the tester, connect or contact the alligator clip for the tester ground directly to the flat metal surface on the bottom of the HEI module (refer to Figure 1). The metal eyelet on the module is not always in contact with the metal ground surface on the bottom of the module and, therefore, should not be used when testing the module.
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.