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 MANUALSCHEVROLET1996TAHOE 2D UTILITY, 6.5 SREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMENGINE CONTROLS - TESTS W/CODES - GASOLINEDIAGNOSTIC TROUBLE CODE TESTSDTC P0106 - MAP SENSOR SYSTEM PERFORMANCEDIAGNOSTIC PROCEDURES
1996 Chevrolet Tahoe 2D Utility, 6.5 S
Diagnostic Procedures
1996 Chevrolet Tahoe 2D Utility, 6.5 SSECTION Diagnostic Procedures
- Perform On-Board Diagnostic (OBD) System Check. After performing OBD system check, go to next step.
- Install scan tool. Turn ignition on, with engine off. Monitor MAP sensor voltage on scan tool. If voltage is 3.6-4.9 volts, go to next step. If voltage is not 3.6-4.9 volts, go to step 6).
- Disconnect and plug MAP sensor vacuum source. Connect a vacuum pump to MAP sensor. Start engine. Observe MAP sensor voltage on scan tool. Apply 10 in. Hg vacuum and observe MAP sensor voltage. Subtract this reading from voltage reading noted in step 2). If difference is greater than 1.5 volts, see DIAGNOSTIC AIDS. If difference is less than 1.5 volts, go to next step.
- Check MAP sensor connections. If a problem was found, go to next step. If a problem was not found, go to step 7).
- Repair connections as necessary. Go to step 7).
- Replace MAP sensor. Go to next step.
- Using scan tool, select DTC, CLEAR INFO. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, then enter DTC P0106. Operate vehicle within the conditions for setting this DTC. If scan tool indicates that this test ran and passed, go to next step. If scan tool does not indicate that this test ran and passed, repeat step 2).
- Using scan tool, select CAPTURE INFO, REVIEW INFO. If any undiagnosed DTC(s) are displayed, go to applicable DTC test.
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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.