For 1990-2009 cars

Step | Action | Values | Yes | No
--- | --- | --- | --- | ---
DEFINITION: The starter solenoid clicks but the engine does not crank or cranks slowly. Important:

• | The battery must be in a charged state to avoid misdiagnosis. Refer to Battery Charging

• | The following tests are designed for engine and batteries at normal operating temperatures and assumes that there are no engine symptoms which would cause a no-start symptom. To use the tests under other conditions could result in a misdiagnosis.

1 |

1. Remove the INJ fuse (Buick) or the INJ1 and INJ2 fuses (Oldsmobile) from the I/P fuse block to prevent the engine from starting.
2. Turn the ignition switch to the START position.
3. Using a digital multimeter, measure the voltage between the positive and the negative battery terminals while cranking. Crank the engine for at least 15 seconds, then read the voltage.

Is the reading greater than the specified value?

8 Volts

Go to Step 5

Go to Step 2

2 | Load test the battery. Refer to Battery Load Test . Is the battery OK? | -- | Go to Step 4 | Go to Step 3
3 | Replace the battery. Refer to Battery Replacement . Are the repairs complete? | -- | System OK | --
4 |

1. Check the battery and the starter terminals for corrosion of poor contact. Repair if necessary.
2. If OK, repair or replace the starter motor. Refer to Starter Motor Replacement .

Are the repairs complete?

--

System OK

--

5 | Measure the voltage between the negative battery terminal and the engine block while cranking for at least 15 seconds. Is the voltage less than the specified value? | 0.5 Volts | Go to Step 8 | Go to Step 6
6 |

1. Clean the negative battery cable connection.
2. Measure the voltage between the negative battery terminal and the engine block while cranking for at least 15 seconds.

Is the voltage less than the specified value?

0.5 Volts

Go to Step 8

Go to Step 7

7 | Replace the negative battery cable. Refer to Battery Cable . Are the repairs complete? | -- | System OK | --
8 | Measure the voltage between the positive battery terminal and the starter solenoid terminal B while cranking for at least 15 seconds. Is the voltage less than the specified value? | -- | Go to Step 9 | Go to Step 10
9 | Repair or replace the starter motor. Refer to Starter Motor Replacement . Are the repairs complete? | -- | System OK | --
10 |

1. Clean the positive battery cable connection.
2. Measure the voltage between the positive battery terminal and the starter solenoid terminal B while cranking for at least 15 seconds.

Is the voltage less than the specified value?

0.5 Volts

System OK

Go to Step 11

11 | Replace the positive battery cable. Refer to Battery Cable . Are the repairs complete? | -- | System OK | --