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 MANUALSCHEVROLET1988MONTE CARLO V6-262 4.3LREPAIR AND DIAGNOSISCRUISE CONTROLTESTING AND INSPECTIONTEST PROCEDURES
1988 Chevrolet Monte Carlo V6-262 4.3L
Test Procedures
1988 Chevrolet Monte Carlo V6-262 4.3LSECTION Test Procedures
^ Use TESTING PROCEDURES / ROAD TEST & SYSTEM CHECK TABLE as a guide to normal operation.
^ Refer to TESTING PROCEDURES / SYSTEM DIAGNOSIS / SYSTEM DIAGNOSTIC CHART:ISOLATION CHART when a result is not normal. Go to the test procedure listed in the chart. If problem is intermittent or not listed, do all the tests listed.
Perform the tests as referred to in SYSTEM DIAGNOSTIC CHART:ISOLATION CHART. If responses were correct, and cruise control still does not work, replace the Cruise Control Module and check for proper operation.
^ Refer to TESTING PROCEDURES / SYSTEM DIAGNOSIS / SYSTEM DIAGNOSTIC CHART:ISOLATION CHART when a result is not normal. Go to the test procedure listed in the chart. If problem is intermittent or not listed, do all the tests listed.
Perform the tests as referred to in SYSTEM DIAGNOSTIC CHART:ISOLATION CHART. If responses were correct, and cruise control still does not work, replace the Cruise Control Module and check for proper operation.
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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.