Question about 1993 Jeep Grand Cherokee

1 Answer

Jeep died while driving. Wont start. Garage said they couldnt communicate with the computer. I replaced the computer and coil. I am getting no spark. I tried the turn on / off/ on /off / on to get the codes but it doesnt work. Any ideas what to check next? Replaced crank sensor a little over a year ago. Replaced wires/ spark plugs then too.

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 112 Answers

Check the ecm fuses if they can't communicate using an obd reader then the ecu isn't getting any power different car company's label them differently but look for the ones that are labeled something like ecu, ecm, engine controller, or something like that I hope this helps

Posted on Oct 22, 2017

Ad

6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Richard Scordino

  • 6982 Answers

SOURCE: 93 Jeep Grand Cherokee Won't start

Are you getting spark from coil wire when cranking? If so, check the cap & rotor. If not, the most common failure is the crank sensor. If you have a 4,0, you can find it on the drivers side of the bellhousing, in line with the flywheel, just where it's annoying to work on. There is a test you can make, but I don't have the specific test values or the correct terminals to check. (you can find that info in any half decent manual.
Good luck

Posted on Jan 08, 2009

csmock132

Clint Smock

  • 4669 Answers

SOURCE: 1993 grand am no spark

You said you changed the ecm module, is that the ecm or the ignition module. Do you have access to a scanner to check cranking rpm? That way you can test the new crank sensor and the wiring and the ignition module.

Posted on Feb 27, 2009

Anonymous

  • 1 Answer

SOURCE: 1993 jeep grand cherokee will not start

Check to see it maybe a head gasket .mine was

Posted on Feb 28, 2009

Anonymous

  • 108 Answers

SOURCE: no spark at coil

check ignition pick-up coil and ignition module

Posted on Mar 31, 2009

emissionwiz

Marvin

  • 85223 Answers

SOURCE: 89 jeep cherokee 4.0 cranks and gets fuel but no

the part that is known to fail in these engines that causes no spark is the Crankshaft position sensor, it is located on th right side of the bell housing as u stand in front of truck, it must be changed from below the truck and is very difficult to get at, here is a photo of the sensor and a brief description of the repair

Posted on Apr 03, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

1998 jeep grand cherokee died wont start getting


check node on injectors if none the computer is most likly your problem

Oct 29, 2013 | 1995 Jeep Grand Cherokee

1 Answer

My 2001 Jeep Grand Cherokee started knocking. Multiple local mechanics determined it needed new motor. A "reman" motor was puchased ($3600) and installed. On test drive the car ran great then...


All I can say is do some research online find a REPUTABLE shop and let them drive it until it dies. Three things are needed for an engine to run: spark, fuel, compression. I doubt it is a compression problem being that it is a new engine. Something is causing either spark or fuel to drop out, a good mechanic should be able to quickly identify what is missing from the equation. Find a shop with a lab scope that can test sensors that send signals to the engine computer. It could be as simple as a fuel pump getting hot and quitting. Good Luck!

Sep 24, 2011 | 2001 Jeep Grand Cherokee

1 Answer

1993 Grand Cherokee died, won't start. Crankshaft sensor replaced


It may be the brain of the jeep. if they get condensation in them from the rain , they can act as you described. It is only about a $30 part @ Pep Boys. It looks like a box with 2 or sometimes 3 plugs coming off of it and it plugs up to the wiring harness, and it mounts on the firewall or the inside fender-wall of your jeeps engine compartment.

Jan 27, 2010 | Jeep Grand Cherokee Cars & Trucks

2 Answers

1996 Jeep Grand Cherokee No Start


I would be thinking that there is a good chance that you need to be checking out replacing the computer, if you aren't getting any communication with the proper scan tool then the computer isn't communicating with anything in the vehicle...... I would have guessed first off that the ignition control module might be bad but that is obviously part of the computer also, I would be looking in that direction.

Sep 19, 2009 | 1996 Jeep Grand Cherokee

1 Answer

Car turns over great getting fuel and spark but wont start


Spark without fuel = just spark. :) Are you getting fuel movement? You could have a bad/clogged fuel filter, bad fuel pump - could be a few things. Check to make sure you're getting fuel.

-KC GTO Dad

Sep 16, 2009 | 1994 Honda Accord

1 Answer

96 cherokee was missing/cutting out/dying out.would crank after sitting,now it wont start


the crankshaft position sensor controls spark and if faulty would give the symptons you have described you need to get this checked first

May 20, 2009 | 1996 Jeep Grand Cherokee

3 Answers

1990 Jeep YJ 6 cyc. Won't Start---No Spark From Coil


It would be great if you could find the Ignition Control Module!!! From my experience on my Jeep...90 YJ 4.2 liter carb. it does not have one...Computer controlled only...

May 17, 2009 | 1990 Jeep Wrangler

2 Answers

1996 jeep GC died while driving wont start or even sputter


check your fuel pump relay underneath the hood in your fuse panel box and also check your fuse to your fuel pump it may not be making good contact . so good luck

Dec 27, 2008 | 1996 Jeep Grand Cherokee

Not finding what you are looking for?
1993 Jeep Grand Cherokee Logo

Related Topics:

72 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jeep Experts

Marvin
Marvin

Level 3 Expert

85222 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Are you a Jeep Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...