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No fire. 93 jeep grand chreokee lerado

Customer Question
no fire JA: What is the...
no fire
JA: What is the model/year of your Jeep?
Customer: 93 jeep grand chreokee lerado
JA: Are you fixing your 9-3 yourself? What have you tried so far?
Customer: yes
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 3 months ago.Category: Jeep
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Answered in 2 minutes by:
7/26/2017
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Jeep
Satisfied Customers: 4,142
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicle
Verified

Hi, I'm Chad. Welcome to JustAnswer. I'm reviewing your question and I will be posting your reply ASAP.

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

Hey how are you

what have you checked so far ?

,for igntion we need to check

1- distributor

2- asd relay

3- pcm

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

click on link to view pdf file

Please let me know if you can see it

Thank You

Chad Farhat

ASE Certified Technician

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Customer reply replied 3 months ago
just replaced the ecm. distributor cap and pickup are new, the coil is new.
what is the ads relay
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

can you run this test

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

AUTO SHUT DOWN RELAY

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

THIS HOW YOU TEST IT

If you do not mind me asking ,are you looking at fixing this yourself or looking to know the most possible cause of this issue and taking it to repair shop for the work ?

Do you have any prior experience in electrical troubleshooting and testing with a test light for power & ground ?

Do you have a test light & or power probe for testing ?

Do you have a test light so we can check for spark ?

Do you have fuel pressure tester to check for fuel ?

Did you scan it with factory scanner or equivalent & faults retreievd

Please let me know

Thank You

Chad Farhat

ASE Certified Technician

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Customer reply replied 3 months ago
hoping to fix it my self. i have done some testing.
do not have a test light but have a volt meter, but can get one.
i do not have a obd 1 scan tool but have run the codes and nothing is coming up.
i can rent a fuel pressure tester
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

ok sounds great , i try to help you with it

lets start with this relay and wiring to it ,this common problem ,replace it

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Customer reply replied 3 months ago
the ads relay?
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

ITS IS ASD NOT ADS

ASD RELAY YES ,AUTOMATIC SHUT DOWN RELAY \

I SENT YOU THE LOCATION CLICK ON LINK TO VIEW

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

CAN YOU SEE ALL THE FILES I SENT YOU ?

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Customer reply replied 3 months ago
slowly going through them
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

OKAY GOOD

ALL GROUND NEEDS CHECKED FROM FRAME TO BLOCK FOR LOOSE OR CORRODED

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Customer reply replied 3 months ago
i have been trying to locate
the ground to check them i have not been successful in finding them
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

1993 Jeep Truck Cherokee 2WD L6-242 4.0L VIN S MFI

Save Article

PURPOSE Used to control Powertrain Control Module (PCM) ground circuits. OPERATION The power ground is used to control the PCM loads for; the generator field, 8 volt PCM power supply, fuel injectors, and ignition coil.

© 2017 ALLDATA, LLC. All Rights Reserved. Terms of Use (Version 2.0.13872)

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

SYSTEM & COMPONENTS

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

CHECK PIN# ***** ON COMPUTER CONNECTOR

THAT GOES TO ASD RELAY

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Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago

Please Take a Second and Click the Stars at the Top of Your Screen To Rate Me , So I May Receive my Credit , A 5 Stars Rating is Much Apreciatted

If more help is needed, use the reply tab to continue our conversation.

Please kindly rate Me ,A 5 Star Rating is Much Appreciated.

If you feel I have not been helpful Please DO NOT RATE ME BAD OR POOR (1 or 2 stars) ,

You can always ask me again or I can opt out of your question & open it for another expert

that will provide you with more or better assistance on this issue

Please Keep in Mind that when You Rate Me , it Does Not End Our Conversation.

you can always come back to this conversation and ask me any follow up question you may have on this issue

(you can copy this link page & paste it in your browser when ready and it will open up our conversation again)

I 'm Online Daily from 7 Am Till LATE PM Eastern Time Zone

Thank You
Chad Farhat
ASE Certified Technician
-------------------------------------

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Customer reply replied 3 months ago
40 psi fuel pressure
little to no voltage at ignition coil
installed new asd relay
Jeep Mechanic: Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems replied 3 months ago
Pin#1 on computer control the igntion coil
Since the year of truck you need to pin out the pcm and do a continuity check on the wires between them, you might have a shorted wires in the bundle
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Chad Farhat
Chad Farhat
Chad Farhat, ASE Certified Technician A6 - Electrical / Electronic systems A7 Heating / Air conditioning systems
Category: Jeep
Satisfied Customers: 4,142
4,142 Satisfied Customers
Experience: Owner at Carolina Auto Service & Sales , 20 years Experience in Foreign & Domestic vehicle

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