Engine Cranks But Does Not Run. Saturn L300/LW300 2004

For 1990-2009 cars only

Makes 🢒 Saturn 🢒 2004 🢒 L300/LW300 🢒 Engine 🢒 Engine Controls - 2.2L (L61) 🢒 Engine Cranks But Does Not Run

Description

The Engine Cranks but Does Not Run diagnostic table is an organized approach to identifying a condition that causes an engine not to start. The Engine Cranks but Does Not Run diagnostic table directs the service technician to the appropriate system diagnosis.

The Engine Cranks but Does Not Run diagnostic table assumes the following:

•	The battery is completely charged. Refer to Battery Inspection/Test in Engine Electrical.

•	The engine cranking speed is acceptable. Refer to Engine Cranks Slowly in Engine Electrical.

•	There is adequate fuel in the fuel tank.

Step

Action

Value(s)

Yes

Did you perform the Diagnostic System Check-Engine Controls?

Go to Step 2

Go to Diagnostic System Check - Engine Controls

Does the scan tool display any U-XXX DTCs?

Go to Diagnostic Trouble Code (DTC) List in Data Link Communications

Go to Step 3

Turn ON the ignition, with the engine OFF.
Observe the DTC Information with a scan tool.

Does the scan tool display DTCs P0336, P0601, P0602, P1621, P1630, P1631, or B1372?

Go to Diagnostic Trouble Code (DTC) List

Go to Step 4

Does the scan tool display any body control module (BCM) vehicle theft deterrent (VTD) DTCs?

Go to Diagnostic Trouble Code (DTC) List in Theft Deterrent

Go to Step 5

Turn ON the ignition, with the engine OFF.
Probe the BCM/ECM/Cruise fuse with a test lamp that is connected to a good ground.

Does the test lamp illuminate on at least one side of the fuse?

Go to Step 6

Go to Step 7

With the ignition switch in the CRANK position, probe the BCM/ECM/Cruise fuse with a test lamp that is connected to a good ground.

Does the test lamp illuminate on at least one side of the fuse while cranking the engine?

Go to Step 9

Go to Step 8

Caution: Refer to Battery Disconnect Caution in the Preface section.

Turn the ignition OFF.
Remove the battery feed wire from the fuse wire from the fuse block.
Push in the tabs at the end of the fuse block case.
Roll back the fuse block to gain access to the fuse block connectors.
Jumper the battery feed onto the fuse block.
Turn ON the ignition, with the engine OFF.
Probe the ignition 1 voltage circuit at the underhood fuse block connector C3 E9 with a test lamp that is connected to a good ground. Refer to Power and Grounding Connector End Views in Wiring Systems.

Did the test lamp illuminate?

Go to Step 16

Go to Step 15

Caution: Refer to Battery Disconnect Caution in the Preface section.

Turn the ignition OFF.
Remove the battery feed wire from the fuse wire from the fuse block.
Push in the tabs at the end of the fuse block case.
Roll back the fuse block to gain access to the fuse block connectors.
Jumper the battery feed onto the fuse block.
Turn ON the ignition, with the engine OFF.
With the ignition switch in the CRANK position, probe the ignition 1 voltage circuit at the underhood fuse block connector C3 E9 with a test lamp that is connected to a good ground. Refer to Power and Grounding Connector End Views in Wiring Systems.

Did the test lamp illuminate while cranking the engine?

Go to Step 16

Go to Step 15

Monitor the ignition 1 signal parameter with a scan tool.

Is the ignition 1 signal parameter at the specified value?

B+

Go to Step 10

Go to Step 18

Command the fuel pump ON with a scan tool.

Does the fuel pump operate?

Go to Step 11

Go to Fuel Pump Electrical Circuit Diagnosis

Turn OFF the ignition.
Remove the ignition coil housing. Refer to Ignition Coil Housing Replacement .

Important: Not grounding the ignition coil housing, may cause erratic spark.

Install a jumper wire with clips on both ends from the top of the ignition control module to ground.
Install the J 36012-A Ignition System Diagnostic Harness.
Install a J 26792 (SA9199Z) Spark Tester on #1 spark plug jumper wire.
Ground #4 (companion to #1) spark plug jumper wire.
Crank the engine with the remaining spark plug jumper wires connected.
Repeat the above steps by installing the spark tester on #4 and grounding #1. Do the same for #2 and #3 spark plugs. Making sure the companion wire is grounded.

Does the spark tester spark on all cylinders?

Go to Step 12

Go to Electronic Ignition (EI) System Diagnosis

Turn OFF the ignition.
Disconnect an injector connector.
Install the J 34730-405 Injector Test Lamp to the injector connector.
Attempt to start the engine.

Does the test lamp blink while the engine is cranking?

Go to Step 13

Go to Fuel Injector Circuit Diagnosis

Turn OFF the ignition.
Install a SA9127E Gage Bar Set. Refer to Fuel Pressure Gage Installation and Removal .
Turn ON the ignition, with the engine OFF.
Command the fuel pump ON with a scan tool.

Is the fuel pressure within the specified range while the fuel pump is operating?

345-414 kPa (50-60 psi)

Go to Step 14

Go to Fuel System Diagnosis

Inspect for the following conditions:

•	Collapsed air intake duct

•	Restricted air filter element--Refer to Air Cleaner Element Replacement .

•	Spark plugs for being gas or coolant fouled--Refer to Spark Plug Inspection . If the spark plugs are fouled, determine what caused the condition.

•	Engine mechanical condition, worn timing chain and gears, low compression--Refer to Symptoms - Engine Mechanical and Engine Compression Test in Engine Mechanical.

•	Restricted exhaust system--Refer to Restricted Exhaust in Engine Exhaust.

•	An engine coolant temperature (ECT) sensor that has shifted in value--Refer to Temperature Versus Resistance .

•	Compare manifold absolute pressure/throttle position (MAP/TP) parameters to another vehicle. The parameters should be close in value. Refer to DTC P0106 .

Did you complete the action?

Go to Step 23

Test the affected circuits between the underhood fuse block and the ignition switch for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.