Question about 1999 Jeep Grand Cherokee

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I have a 97 grand cheerokee.my car cant start when cold .

There are no power suply to the ignition coil.but after hot the current will come.+the asd relay keep on clicking.dunno what happen.the delay seems no earth suply.but after the earth(ground)got come then only the car can start.please give me some idea.t.q

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Mabey a poor connection on the body ground

Posted on May 31, 2009

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Jeep will crank but no start what can my problem be


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1993 jeep grand cherokee larado hose broke in back of motor got everything wet. car shut off and would not start, replaced the crand senser.and got no spark from coil,check for power, no power at coil...


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I have a 02 dodge grand caravan sport with 0351,0352,0700 codes...car runs good then shakes and even stalls at times,but not all the time...i have replaced ignition coil,wires,plugs,and catalytic...


po700 code just means you have codes
P0351-IGNITION COIL #1 PRIMARY CIRCUIT

WHEN MONITORED
With battery voltage greater than 8 volts during engine cranking or greater than 13 volts with engine running. Engine RPM less than 3000. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set.

POSSIBLE CAUSES
- Ignition coil
- Intermittent condition
- ASD relay output circuit
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
- PCM

P0352-IGNITION COIL #2 PRIMARY CIRCUIT

TEST NOTE
This symptom is diagnosed using the test P0351-IGNITION COIL #1 PRIMARY CIRCUIT.

WHEN MONITORED
With battery voltage greater than 8 volts during engine cranking or greater than 13 volts with engine running. Engine RPM less than 3000. No coil in dwell during test.

SET CONDITION
Peak current is not achieved with battery based dwell plus 1.5 msec of diagnostic offset. It takes less than 3 seconds during cranking or up to 6 seconds while running to set.

POSSIBLE CAUSES
- Ignition coil
- Intermittent condition
- ASD relay output circuit
- Ignition coil driver circuit open
- Ignition coil driver circuit shorted to ground
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WILL THE IGNITION COIL STRIP OR PACK CAUSE A 2003 GRAND CHEROKEE 4.0 NOT TO START AFTER THE ENGINE GET WARM.I CAN GO TO THE VEHICLE AND START IT ABOUT TWO HOURS LATER. I WILL LEAVE IT RUNNING ABOUT TEN...


Hi!!

When a faulty coil gets hot, it quits working, you have a 3 pack and they hardly ever go out in packs, usually one at the time and it will be misfiring and loss of power before the engine dies and the check engine light will come on. If check engine light is on, have the codes scanned to find out which coil is defective.

Otherwise, I would go for the ignition module, it is the flat part in wich the coils sit on. Check connector and wiring.

Check for spark in all 3 colis when no start condition occurrs, if no spark in nither one, replace ignition module.

Don't forget to rate this post!! Good Luck!!

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My 97 grand cherokee is not getting any voltage to the coil already checked the asd


You may have a bad crank sensor or PCM, or ignition module. Or you may have a ign or PCM fuse that popped.

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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.
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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.

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Try resetting the asd "auto shut down fuse had a similar problem the jeep would crank but did not get spark or gas also check your fuel pump? and the asd relay may be bad it will prevent the jeep from getting no spark and will not fire some jeeps have security problems

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