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On a 1994 Dodge Intrepid why your car crank up even if it turning over but not firing up?

A 1994 Dodge Intrepid cranking but not starting points to several potential issues. The engine is turning over (the starter motor is working), but the engine isn't igniting the fuel/air mixture. Here are some of the most likely culprits:

* Fuel Delivery Problems:

* Empty or near-empty fuel tank: Sounds obvious, but it's worth checking.

* Fuel pump failure: The pump might be weak, failing to deliver enough fuel pressure.

* Clogged fuel filter: Restricted fuel flow prevents sufficient fuel reaching the engine.

* Fuel injectors: They might be clogged, faulty, or not receiving the proper electrical signal.

* Fuel pressure regulator: This could be faulty, causing incorrect fuel pressure.

* Ignition System Problems:

* Ignition coil: This component supplies high voltage to the spark plugs. A failing coil won't produce the necessary spark.

* Spark plugs and wires: Worn, damaged, or fouled spark plugs or wires prevent proper spark delivery. Check for cracks or corrosion.

* Distributor cap and rotor (if equipped): These parts can wear, crack, or become corroded, disrupting spark delivery. (Note: Some 1994 Intrepids may have distributorless ignition systems, so this might not apply).

* Crankshaft Position Sensor (CKP): This sensor tells the computer the engine's rotational position. A faulty sensor prevents the computer from firing the injectors and spark at the correct time.

* Cam Position Sensor (CMP): Similar to the CKP, a faulty CMP will disrupt timing and prevent starting.

* Ignition Control Module (ICM): This module controls the ignition system. A faulty ICM will stop the spark.

* Other Potential Issues:

* Security System: A malfunctioning anti-theft system might be preventing the engine from starting.

* Low Battery Voltage: While the starter *cranks*, a weak battery might not provide sufficient voltage to run the ignition system properly.

* Computer/PCM Problems: A faulty Powertrain Control Module (PCM) can prevent the engine from starting. This is less likely but possible.

Troubleshooting Steps:

1. Check the obvious: Fuel level, battery voltage (have it load tested), and listen for the fuel pump priming sound (a brief hum when the key is turned to the "on" position).

2. Check for spark: Using a spark tester or a spare spark plug wired to a ground, check for spark at the spark plug wires.

3. Check fuel pressure: This requires a fuel pressure gauge and knowledge of the correct pressure specification for your engine. Consult a repair manual.

4. Inspect the ignition system components: Visually inspect the spark plugs, wires, distributor cap and rotor (if applicable) for damage or corrosion.

5. Have the car scanned: Use an OBD-II scanner to check for diagnostic trouble codes (DTCs) stored in the PCM. These codes can pinpoint the problem. A 1994 model might require a specialized scanner for its older OBD system.

Recommendation:

If you're not comfortable working on your car's electrical system, it's best to take it to a qualified mechanic for diagnosis and repair. Incorrect diagnosis and repairs can lead to further damage and expense. A professional will have the tools and expertise to accurately pinpoint the cause of the problem.