Step | Action | Values | Yes | No |
|---|---|---|---|---|
|
Important: Ensure that the driver is using the correct starting procedure. Before diagnosing, check service bulletins for updates. DEFINITION: The engine cranks OK, but does not start for a long time. The engine eventually runs or may start and immediately die. | ||||
1 | Were the Preliminary Checks performed? | -- | Go to Step 2 | |
2 |
Do the ECT and the IAT readings differ from the ambient temperature greater than the value specified? | 3°C (5°F) | Go to Step 3 | Go to Step 4 |
3 |
Did you find and correct the condition? | -- | System OK | -- |
4 |
Does the voltage measure within the specified range? | 0.4-0.8 V | Go to Step 5 | Go to Step 26 |
5 |
Did you find and correct the condition? | -- | System OK | Go to Step 6 |
6 | Inspect the fuel pump operation. Does the fuel pump operate for the specified time when the ignition switch is turned ON? | 2 seconds | Go to Step 7 | |
7 | Inspect the fuel system pressure. Is the fuel pressure within the specified range? | 279-393 kPa (55-57 psi) | Go to Step 8 | Go to Step 29 |
8 | Inspect for water contamination in the fuel. Is fuel contaminated? | -- | Go to Step 9 | Go to Step 10 |
9 | Replace the contaminated fuel. Did you complete the replacement? | -- | System OK | -- |
10 |
Does the test light blink at all connectors? | -- | Go to Step 13 | Go to Step 11 |
11 | Inspect the fuel injector driver wiring harness, the connectors, and the connector terminals for the proper connections. Is a repair necessary? | -- | Go to Step 12 | Go to Step 30 |
12 | Repair the wiring harness, the connector, or the connector terminal as needed. Did you complete the repair? | -- | System OK | -- |
13 | Measure the resistance of each fuel injector at 20°C (68°F). The resistance will increase slightly at higher temperatures. Is the fuel injector resistance within the specified range? | 11.6-12.4 ohms | Go to Step 15 | Go to Step 14 |
14 | Replace any fuel injector with a resistance that is out of specifications. Did you complete the replacement? | -- | System OK | -- |
15 | Perform an injector balance test. Refer to Fuel Injector Balance Test with Special Tool . Is a repair necessary? | -- | Go to Step 16 | Go to Step 17 |
16 | Replace any restricted or leaking fuel injectors as needed. Did you complete the replacement? | -- | System OK | -- |
17 |
Is a repair necessary? | -- | Go to Step 18 | Go to Step 19 |
18 | Correct or replace any faulty ignition components. Did you complete the repair? | -- | System OK | -- |
19 | Does the engine misfire or cut out under load or at idle? | -- | Go to Step 20 | |
20 | Does the engine start, but then immediately stall? | -- | Go to Step 21 | Go to Step 23 |
21 |
Did you find and correct the condition? | -- | Go to Step 22 | Go to Step 25 |
22 | Repair the faulty connections, as needed. Did you complete the repair? | -- | System OK | -- |
23 |
Is a repair necessary? | -- | Go to Step 24 | Go to Step 25 |
24 | Repair or replace any components as needed. Did you complete the repair? | -- | System OK | -- |
25 | Inspect the idle air control (IAC) valve operation. Repair or replace components, as needed. Did you find and correct the condition? | -- | System OK | -- |
26 | Inspect the base idle setting of the throttle body. Did you find and correct the condition? | -- | Go to Step 27 | Go to Step 28 |
27 | Inspect the TP sensor circuit for proper operation. Repair or replace components, as needed. Did you find and correct the condition? | -- | System OK | -- |
28 | Adjust the base idle setting to specifications. Is the repair complete? | -- | System OK | -- |
29 | Repair the fuel system, as needed. Did you complete the repair? | -- | System OK | -- |
30 | Replace the ECM. Did you complete the replacement? | -- | System OK | -- |
