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
|
- Remove the INJ fuse (Buick) or the INJ1 and INJ2 fuses (Oldsmobile)
from the I/P fuse block to prevent the engine from starting.
- Turn the ignition switch to the START position.
- 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
|
- Check the battery and the starter terminals for corrosion of poor
contact. Repair if necessary.
- 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
|
- Clean the negative battery cable connection.
- 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
|
- Clean the positive battery cable connection.
- 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
| --
|
