Question about 1994 Jeep Cherokee

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My 1994 jeep Cherokee inline 6 doesn't have spark coming from coil, have replaced distributor, crank sensor,ignition coil cap and rotor . Still no spark coming from ignition coil.....help.

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  • Jeep Master
  • 10,875 Answers

Get new coil,and condenser

Posted on Apr 16, 2015

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Posted on Jan 02, 2017

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SOURCE: 91 jeep no spark

wd 40 your flywheel sensor plug

Posted on Sep 03, 2009

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SOURCE: my 96 jeep grand cherokee keeps diying going down

How is the idle? It never dies when let it idle for 30 minutes? Is it only dies when trying to accelerate? If this is the case then There are 3 things to check: 1- O2 sensor. 2- Fuel delivery rate is meeting spec at at fuel distributor. The fuel pump may be week to deliver a correct fuel rate or the Fuel regulator is not doing its function to keep up the fuel pressure. 3- If number #2 is OK then there is a problem with the Fuel distributor. Good luck in finding the root cause

Posted on Dec 14, 2009

  • 14036 Answers

SOURCE: I have a 1994 Jeep Grand Cherokee Laredo 6 Cyl.

CHECK ASD RELAY THAT IS AUTOMATIC SHUTDOWN RELAY IN THE POWER DISTRIBUTION CENTER UNDER THE HOOD IN ENGINE COMPARTMENT.IF ASD RELAY GOOD PROBLEM COULD BE CAMSHAFT SENSOR IN THE DISTRIBUTOR.TO SAVE TIME AND MONEY HAVE JEEP SCANNED FOR CAMSHAFT SENSOR AND CRANKSHAFT SENSOR FAULTS.

Posted on Apr 23, 2010

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redds55
  • 2620 Answers

SOURCE: 85 Jeep Cherokee will crank

Check for spark at any of the sparkplugs.If there is no spark at the plug then replace the distributor ignition pickup coil.

Posted on Aug 11, 2011

savellano
  • 324 Answers

SOURCE: I have a 1996 Jeep Grand cherokee with the 5.2l v-8 engine. Last week I started it, and it ran for about 1 minute before shutting off. The engine cranks, but no ignition. I replaced the Crankshaft pos

Time to meter voltage. Start with the 12V circuit. Are you getting voltage at the coil. Does the voltage fluctuate when the engine cranks? If yes to both check the high voltage circuit. Start with the coil then the distributor then each plug. You should be able to find where the spark is failing.

Posted on Sep 07, 2014

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1 Answer

I have a 1996 Jeep Grand cherokee with the 5.2l v-8 engine. Last week I started it, and it ran for about 1 minute before shutting off. The engine cranks, but no ignition. I replaced the Crankshaft position...


Time to meter voltage. Start with the 12V circuit. Are you getting voltage at the coil. Does the voltage fluctuate when the engine cranks? If yes to both check the high voltage circuit. Start with the coil then the distributor then each plug. You should be able to find where the spark is failing.

Sep 07, 2014 | 1996 Jeep Grand Cherokee

1 Answer

I got a code 43 what do it mean


1994 Jeep, Cherokee?

check all EFI system fuse first with a meter.

that is ASD drop out.
all jeeps from 93 to now have ASD relays.

43 code (nice checking you did) is bad spark.
when the PCM sees bad spark it then shuts every thing down

http://www.fixkick.com/Jeeps/ASD.html

cause is bad ignitor or coil.
the big v8, with the funny locking throttle body... short.
that is true if you crank for 5 full seconds.
to see if CMP sensor fails too.
cmp cam sensor is in the distributor base.
the ignitor is in the PCM, and drives the coil directly.
i presume spark is dead directly at the coil terminal
and is dead the first 2 seconds cranking. right.
takes 2 person to test spark. one at key , 1 and coil
the PCM only allows 2 seconds for spark to happen
if it fails ,it kills the ASD relay.
making trouble shooting tad hard , for those that dont know jeep ASD issues.
if the 5.2L cmp and CKP sensors work right, the PCM then creates spark
it does this via and ignitor.
the coil can be bad, as can the rotor and cap. id replace any old cap and rotor, fast. if the coil tower terminal HV. has good spark.

read failure to start test here
http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service
chapter 8D-6

and page 8w-30-4 , coil schematic.
as you can see, the coil has 12vdc key on for 2 seconds.
cranking.
the PCM ground the minus coil pin.
this charges and fires the coil
the ignitor transistor is in the PCM on this car.
The PCM monitors this pin minus , and if it fails to pulse,
it knows the Coil is dead. and then shuts down EVERYTHING EFI wise.

that is how it works.
tricky yes,but true.



Apr 06, 2014 | 1994 Jeep Cherokee Country

2 Answers

Replaced fuel pump & battery will not start


you have a ignition modulor in the distributor and the crank positon sensor. I have a 1997 grand cherokee and I go through a few crank position sensor

Oct 29, 2012 | 1994 Jeep Grand Cherokee

4 Answers

96 jeep cheokee problems no spark


I would make sure you have voltage to the coil. Could be a fuse or relay problem. Is the check engine light on when you turn the key on ?

Aug 16, 2012 | 1996 Jeep Grand Cherokee

2 Answers

96 jeep grand cherokee no start. Has no spark, replaced coil, still has no spark. fuses and relays in power distribution all good, also fuses in cab all good. no codes in ecm. plug at coil has...


the crankshaft position sensor located between flywheel and trans is where the power source for the coil comes from. I suggest you need change that

Sep 09, 2010 | 1997 Jeep Grand Cherokee

1 Answer

I have a 1994 Jeep Grand Cherokee Laredo 6 Cyl. The vehicle was kind of running rough on idle. Take in consideration that I have replaced the spark plugs, spark plug wires a while ago. So I decided to...


CHECK ASD RELAY THAT IS AUTOMATIC SHUTDOWN RELAY IN THE POWER DISTRIBUTION CENTER UNDER THE HOOD IN ENGINE COMPARTMENT.IF ASD RELAY GOOD PROBLEM COULD BE CAMSHAFT SENSOR IN THE DISTRIBUTOR.TO SAVE TIME AND MONEY HAVE JEEP SCANNED FOR CAMSHAFT SENSOR AND CRANKSHAFT SENSOR FAULTS.

Apr 23, 2010 | 1994 Jeep Grand Cherokee

2 Answers

91 jeep no spark


wd 40 your flywheel sensor plug

Sep 02, 2009 | 1996 Jeep Grand Cherokee

1 Answer

Causes for no spark on 94 jeep cherokee please


Well it could be many things, But have you relpaced the dist. cap and rotor, within the last 15,000 miles or wires and plugs??? next step is the coil ? then it gets fun. like timing. but I think most jeeps with a Inline 6 have a bullet proof engine for the most part. As we all know there is plenty of semi's on the road. well the same set up is there. as an Inline Jeep. I would have to say 90% of semi's on the road are inline 6 cyl. engines. and may of them go to 1million miles.
so plugs,wires, cap, rotor and ignition coil. that is a good starting point.

Mar 24, 2009 | 1994 Jeep Cherokee Country

1 Answer

No Spark


The " FIRE" doesnt come to the coil from any of those things you have changed.......The "fire" comes from the coil TO those items!!!! Good luck, RC

Mar 06, 2009 | 1996 Jeep Cherokee Country

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