Question about 1997 Dodge Intrepid

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NO POWER OR GROUND TO IGNITION COIL

THE ENGINE TURNS OVER BUT FUEL PUMP DOESN'T RUN AND THERE IS NO POWER OR GROUND TO IGNITION COIL.

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  • hapgood410 Jan 11, 2009

    it has no spark to the plugs, but it has no power or ground to the ignition coil and the fuel pump won't run but it turns over fine.

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Usually when coil dies the computer shuts off fuel pump to stop you catalytic converter and engine filling up with gas! do you have a eng light on if so scan with:OBD 2 scan to retreve you problem don't get$$ any how do you have SPARK when coil is connected?have you tested with a spark tester tool not spark plug not efficient!!! also have you tested all the in car fuses and under hood fuses with circuit tester tool not pulling and looking!???good place to start!

Posted on Jan 10, 2009

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Where is the fuel pump relay and how can e serviced?


Description

*: ECM determines the start signal status by the signals of engine speed and battery voltage.
The ECM activates the fuel pump for several seconds after the ignition switch is turned ON to improve engine start ability. If the ECM receives a engine speed signal from the camshaft position sensor (PHASE), it knows that the engine is rotating, and causes the pump to operate. If the engine speed signal is not received when the ignition switch is ON, the engine stalls. The ECM stops pump operation and prevents battery discharging, thereby improving safety. The ECM does not directly drive the fuel pump. It controls the ON/OFF fuel pump relay, which in turn controls the fuel pump.

Component Function Check
1.CHECK FUEL PUMP FUNCTION
1. Turn ignition switch ON.
2. Pinch fuel feed hose (2) with two fingers.
1 : Air cleaner assembly


Fuel pressure pulsation should be felt on the fuel feed hose for 1 second after ignition switch is turned ON.
Is the inspection result normal? YES >> INSPECTION END
NO >> EC-466, "Diagnosis Procedure".
Diagnosis Procedure
1.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Turn ignition switch ON.
4. Check the voltage between ECM harness connector and ground.


Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 2.
2.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect IDPDM E/R harness connector F10.
3. Check the continuity between IPDM E/R harness connector and ECM harness connector.

Is the inspection result normal? YES >> GO TO 3.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK CONDENSER-1 POWER SUPPLY CIRCUIT-I
1. Reconnect all harness connectors disconnected.
2. Disconnect condenser-1 harness connector.
3. Turn ignition switch ON.
4. Check the voltage between condenser-1 harness connector and ground.


Is the inspection result normal? YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK 15A FUSE
1. Turn ignition switch OFF.
2. Disconnect 15A fuse (No. 32) from IPDM E/R.
3. Check 15A fuse.
Is the inspection result normal? YES >> GO TO 6.
NO >> Replace fuse.
5.CHECK CONDENSER-1 POWER SUPPLY CIRCUIT-II
1. Disconnect IPDM E/R harness connector E18.
2. Check the continuity between IPDM E/R harness connector and condenser-1 harness connector.

3. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 13.
NO >> GO TO 7.
6.DETECT MALFUNCTIONING PART
Check the following.
??? Harness connectors E29, B10
??? IPDM E/R connector F10
??? Harness for open or short between IPDM E/R and condenser-I
>> Repair open circuit or short to power in harness or connectors.
7.CHECK CONDENSER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect dropping resistor harness connector.
3. Check the continuity between condenser-I harness connector and ground.

4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 8.
NO >> Repair open circuit or short to power in harness or connectors.
8.CHECK CONDENSER-1
Refer to EC-469, "Component Inspection (Condenser-1)".
Is the inspection result normal? YES >> GO TO 9.
NO >> Replace condenser-1.
9.CHECK FUEL PUMP POWER SUPPLY CIRCUIT-III
1. Disconnect ???fuel level sensor unit and fuel pump??? harness connector.
2. Check the continuity between IPDM E/R harness connector and ???fuel level sensor unit and fuel pump??? and ground.

Is the inspection result normal? YES >> GO TO 11.
NO >> GO TO 10.
10.DETECT MALFUNCTIONING PART
Check the following.
??? Harness connector E29, B10
??? Harness for open or short between ???fuel level sensor unit and fuel pump??? and IPDM E/R
??? Harness for open or short between ???fuel level sensor unit and fuel pump??? and ground
>> Repair open circuit or short to power in harness or connectors.
11.CHECK FUEL PUMP GROUND CIRCUIT
1. Check the continuity between ???fuel level sensor unit and fuel pump??? and ground.

2. Also heck harness for short to power.
Is the inspection result normal? YES >> GO TO 12.
NO >> Repair open circuit or short to power in harness or connectors.
12.CHECK FUEL PUMP
Refer to EC-469, "Component Inspection (Fuel Pump)".
Is the inspection result normal? YES >> GO TO 13.
NO >> Replace fuel pump.
13.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "Intermittent Incident".
Is the inspection result normal? YES >> Replace IPDM E/R.
NO >> Repair or replace harness or connectors.
Component Inspection (Fuel Pump)
1.CHECK FUEL PUMP
1. Turn ignition switch OFF.
2. Disconnect ???fuel level sensor unit and fuel pump??? harness connector.
3. Check resistance between ???fuel level sensor unit and fuel pump??? terminals as follows.


Is the inspection result normal? YES >> INSPECTION END
NO >> Replace ???fuel level sensor unit and fuel pump???.
Component Inspection (Condenser-1)
1.CHECK CONDENSER
1. Turn ignition switch OFF.
2. Disconnect condenser-1 harness connector.
3. Check resistance between condenser-1 terminals as follows.


Is the inspection result normal? YES >> INSPECTION END
NO >> Replace condenser-1.
Fuel injector Description The fuel injector is a small, precise solenoid valve. When the ECM supplies a ground to the fuel injector circuit, the coil in the fuel injector is energized. The energized coil pulls ...
Ignition signal Description The ignition signal from the ECM is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induc ...
Other materials: Heater & cooling unit assembly
Removal and Installation COMPONENTS 1. Steering member 2. Heater and cooling unit 3. Blower unit REMOVAL 1. Discharge the refrigerant from the A/C system. Refer to HA-24, "HFC-134a (R-134a) Service Procedure". 2. Drain the engine coolant from the cooling system. Refer to CO-1 ...
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WHEEL HUB Removal and Installation 1. Knuckle 2. Baffle plate 3. Wheel hub assembly 4. Brake rotor 5. Wheel nut 6. Anchor block 7. ABS sensor 8. Parking brake cable A. Refer to PB-6, "PEDAL TYPE : Exploded View" (Pedal type), PB-7, "LEVER TYPE : Exploded View" (Leve ...
P0011, P0021 IVT control
DTC Logic DTC DETECTION LOGIC NOTE: If DTC P0011 or P0021 is displayed with DTC P0075 or P0081, first perform the trouble diagnosis for DTC P0075, P0081. Refer to EC-1191, "DTC Logic". DTC CONFIRMATION PROCEDURE 1.PRECONDITIONING If DTC Confirmation Procedure has been previousl ...

Mar 02, 2016 | Cars & Trucks

3 Answers

1989 chevys10blazer won't start turns over but won't start one mechanic said it jumped time another one said ignition. Coil or distributor cap put gas in carburetor but it still didn't start


Pull off a spark plug wire and ground it over the engine. Crank the engine over and see if there is any spark from the wire. Sounds as if there is no spark to light the fuel you are putting in the carb. If no spark, possible ignition module/pick up coil inside the distributor/defective distributor cap/rotor/ignition coil/ wiring

Dec 18, 2015 | Cars & Trucks

2 Answers

It turns but it wont start,it has gas and power


Pull off the coil ignition cable at the distributor and check for spark coming out of coil when cranking engine over. Use a heavy rag or glove to hold the wire 1/4 inch from a metal ground. Should see a strong blue spark when cranking to verify ignition is good. If no spark, check for battery voltage to coil on the coil primary. If you have current to the coil, suspect a bad coil, ignition module, crank position sensor, or cam position sensor, or pcm. The coil, ignition module, and sensors can be tested before replacing.

Jan 29, 2013 | Cars & Trucks

1 Answer

Does the fuel pump relay work the ignition power to the fuel pump i have no power to the fuel pump when ignition is on but power when cranking the engine over


Most cars are designed to only put power to the pump for a few seconds till the rpms reach a certain point so it doesn't keep pumping if engine stops. If you have power while cranking and you didn't have someone turn key on and watch test light right away you could have not noticed having power with key on and you probably have a bad pump. Also did you check to see if you had good ground in plug also? I would say if you have power and ground at plug pump is bad.

May 24, 2012 | Scion TC Cars & Trucks

3 Answers

1989 astro van turns over will not start seems not getting fuil gas tank full


#1 NEED TO VERIFY SPARK AT SPARK PLUGS # 2 CK FUEL PRESSURE AT SCHRADER VALVE ON FUEL RAIL ,,PRESSURE DEPENDS ON TYPE ENGINE ....IF NO SPARK AT SPARK PLUGS CHECK SPARK FROM COIL WIRE , IF NO SPARK AT COIL ,CHECK VOLTAGE TO IGNITION COIL SHOULD BE 12 VOLTS, IF NO VOLTAGE AT COIL ( KEY ON ) CHECK FUSES THEN IGHITION SWITCH. IF NO FUEL PRESSURE AND FUEL PUMP RUNS REPLACE PUMP .. CK VOLTAGE TO FUEL PUMP WHILE CRANKING . CK USING PUMP GROUND WIRE AT THE PUMP CONNECTOR THIS WILL PROVE GROUND ALSO. USE TEST LIGHT TO VERIFY

Aug 07, 2010 | 1989 Chevrolet Astro Cargo

2 Answers

I have a no start issue with my 98 camaro with a 3800 v6 man tran, i have changed pretty much all the fuel componets as well as ignition parts that are commonly known to stop turn car from firing off. as...


Sounds like the MAP sensor just unplug and try to start engine (will not start with bad sensor but will start roughly when MAP is unplugged.)
MAP sensor is usually on throttle body or on the intake air tube. 

Could be the ignition module or a ground to the engine from the body - just run a ground from battery to body and/or engine to test.
The ignition module is usually under the coil-packs which lead to the sparkplugs - coil packs can be removed and re-used. 

Jun 09, 2010 | 1998 Chevrolet Camaro

4 Answers

No spark and no gas now what


Hi,

If you have no spark and no fuel pump operation,I would strongly suspect the Auto Shut Down relay.
The Auto Shut Down (ASD) Relay supplies power to the ignition coil, fuel injector, electric fuel pump, and the oxygen sensor heater element as long as the key is in the START or RUN position and the Single Module Engine Controller (SMEC) is receiving a reference signal from the distributor.
If the SMEC receives no distributor reference signal for two seconds or more the SMEC interrupts power to the ignition coil, fuel injectors, electric fuel pump, and the oxygen sensor heater element by removing the ASD relay ground.

Thanks for contacting Fixya.

Jul 26, 2009 | 1996 Jeep Grand Cherokee

1 Answer

Engine won't start


Sounds like an AUTOMATIC SHUTDOWN (ASD) RELAY problem. Fairly common on the Caravan.
Heres a brief overview of the ASD.
The Powertrain Control Module (PCM) operates the Auto Shutdown (ASD) relay by switching the ground path on and off.
The ASD relay supplies battery voltage to the fuel injectors, electronic ignition coil and the heating elements in the oxygen sensors.
The PCM controls the relay by switching the ground path for the solenoid side of the relay on and off. The PCM turns the ground path off when the ignition switch is in the Off position unless the 02 Heater Monitor test is being run. Refer to On-Board Diagnostics. When the ignition switch is in the On or Crank position, the PCM monitors the crankshaft position sensor and camshaft position sensor signals to determine engine speed and ignition timing (coil dwell). If the PCM does not receive the crankshaft position sensor and camshaft position sensor signals when the ignition switch is in the Run position, it will de-energize the ASD relay.
The ASD relay is located in the Power Distribution Center (PDC). The PDC is located on the driver's side inner fender well Power Distribution Center . A label on the underside of the PDC cover identifies the relays and fuses in the PDC
Check for good ground.
Good luck...i hope this helps, please rate me a fixya.

Jun 25, 2009 | 1994 Dodge Caravan

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