Question about Jeep Cherokee

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1996 jeep cherkee sport in line 6 standard will not fire changed pcm,distributer cap and rotor plugs and wires, coil, fuse box and cked relays, dropped fuel tank,

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Replace the faulty park neutral safety lock out switch

Posted on Oct 07, 2010

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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

1 Answer

Missing


Firing order is a result of engine design, not how a PCM (not BCM) is programmed

Jul 23, 2012 | Cars & Trucks

1 Answer

I changed my distributer cap and rotor, On my 1990 Cherokee 4.0 inline 6 ,I replaced plugs followed 153624 and now it wont start ?? i matched # 1 on the block to #1 on the distributer cap etc .. turns...


if that distributor has ever been out, it may not line up on #1. check to make sure the coil wire is connected tight on both the coil and the cap.

Mar 02, 2011 | 1990 Jeep Cherokee Limited

1 Answer

Changing spark plug wires on 2001 Jeep Grand cherokee


yah direct ignition coil pack does away for the need a a distributer cap and rotor.much higher energy ignition system where the computer tell when to fire.if that helps.not hard to change.as long as you change them one at a time so you don't screw up the order.

Nov 27, 2009 | 2001 Jeep Grand Cherokee

2 Answers

96 jeep cherokee, inline 6 4.0... runs fine... after shut off (5-10 mins) acts like its chokeing out, wont start acts like its missing, no combustion (fuel injected) let sit for 20 mins, fires up fine......


Try the pick-up coil that is under the distributer cap.Remove the cap and rotor button then remove the plate that is under the rotor button.Next you need to take off the relucter wheel that is in the way so you can take out the bolts and remove the pick-up coil.

Nov 24, 2009 | 1996 Jeep Cherokee

1 Answer

Not getting spark


check to see if you have an ignition control module. also check any fuses for ignition related items both in power distribution center and fuse block under dash. Don't forget to have codes read if possible It's a big help.

Mar 10, 2009 | 1996 Jeep Grand Cherokee

1 Answer

98 chevy s-10 wont start


real comon starting problem for these is moisture in the cap and rotor and plug wires. replace cap, rotor, and wires. while you have the cap and rotor off check the two vent holles in the base of the distributer to see if the screens are plugged. be careful with the srews that hold the cap on the distibuters are plastic and will break.

Nov 14, 2008 | 1998 Chevrolet S-10 Pickup

1 Answer

Need diagram for 1998 Jeep Cherokee sport spark plug wiring


hi, you didn't say what engine you have, I'll assume it's the 4.0 L in line 6 cylinder. Standing on the PASSENGER side of the jeep, the spark plug at the front of the engine is #1, the next is #2, and so on to #6 which is at the back (nearest the windshield).
The distributor is between you and the valve cover on the engine. Pretend the top of the distributor cap is the face of a clock.
The #1 spark plug wire goes in the cap at what would be the 6 o'clock position, (as viewed from your position standing on the passenger side, facing the side of the engine). The firing order direction is clockwise, so the 'hand' of the clock (actually the rotor in the cap) would continue to the next distributor cap plug in, which would be spark plug wire to #5 (8 o'clock position), then #3 (10 o'clock position), #6 (12 o'clock position), #2 (2 o'clock position), #4 (4 o'clock position). So all this means isi your firing order is, 1,5,3,6,2,4 If you have a different motor or any questions, let me know. Good Luck! countrycurt0

Aug 06, 2008 | 1996 Jeep Cherokee Country

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