Question about 2001 Jeep Wrangler

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The two wires going to the coil touched and shorted out now theres no spark i replaced coil still no spark 2001 jeep tj 4 cylinder

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The driver in the computer may have fried. This means PCM (powertrain control module)replacment. First check #26 20A fuse and the automatic shutdown relay in the power distribution center.

Posted on Feb 01, 2010

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How do I arrange my spark plug wires on my Hyundai Getz go 2002

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Dec 16, 2015 | Hyundai Cars & Trucks

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Hello, how do I reset the fuel shut off switch on 1997 TJ 4 cylinder. 1997 jeep

its not a FORD, why would you thing a jeep is a ford?
is stock car , USA stock car (we are USA forum, )
then this book cover all that. its called the FSm.

ever wire, every bit,

why assume it has an inertial switch. ?
here is the truth.
  1. check all fuses first, (using a meter, no guessing)
  2. check fuel pressure, ah 0psi cranking,
  3. Check engine light must glow key or PCM is dead. (fuses)
  4. I check voltage at fuel pump relay output, its 0v cranking
  5. bad relay or PCM sees no spark.
  6. got 12v there, but not at pump cranking, bad wire .connector on way to pump.
  7. if 12vdc at actual pump and dead pump that is a bad pump. (0psi pressure)

Mar 09, 2015 | 1997 Jeep Wrangler

2 Answers

I am throwing codes PO353, PO352, PO351 on my 2001 Jeep Cherokee Sport. 4.0 2WD. Its saying I have misfires. I was going down the road and the engine just stalled out. It would start right back up and idle...

Greetings john ingall Dec 12, 2016
piggy backers.. old. why not start a fresh post for only your car and not mix up other symptoms.
did play with the CMP or CKP. then cause p1391.
oops...a daisy.... you did it wrong.
Id not attack coil rail until the 1391 is cured, not me.

1: scan it ? post all DTC now.
2: DTCs trouble codes..????
3: is the ASD dropping off line, while running? (a key fact to know)
4: ever get a tune up this decade?????
5: spark gaps correct , to factory spec, and kept here doing repeated service? )
6: Do the scans show the IMMO tripping the ASD off line????
there are 8 reasons for ASD to trip , and cause a stall, all 8 are reported !
there are 50 other reasons for stalls, called misfiring...
the service manual is clear (p035x's)
Peak primary circuit current not achieved with maximum dwell time.
This means that the PCM charged to coil fully
and the current was way too low.
that means it found (out of spec) current.
even zero current,
means coil burned up or the transistors to it.
gee, id have the rail off and check each coil
there are 6 coils, 3 primary and 3 secondary
the SM cover this test, as all do so read it.
it can also be bad connections(wires) to same.
(crude, 5ohm pri, 20k secondary ohms)

WITH 3 COILS inside, and uses wasted spark to fire all 6
and if one coil fails you will loose, 2 cylinders, due to series HV wring, unless 1 wire shorts, but if one opens you loose 2 cylinders.
( Kirchhoff's laws 1; an open in series circuit flows no current, so both spark plugs go dead.

unless rich and super lucky , try using a scan tool
when the engine misfire, or stalls.
and report all errors seen, DTCs, a win/win.
the schematic, see F18 fuse , the coil pack
super simple no? ,yes, but not on PCM end. (Ask)

Oct 12, 2010 | 2001 Jeep Cherokee

2 Answers

98 jeep tj.brake light fuse keeps popping but only brake light fu

if it is rusty underneath you could have a shorted wire

Jan 09, 2010 | Jeep Wrangler Cars & Trucks

1 Answer

The car is missing it was said to be the fuel injector it was changed and the problem still is still there. I saw blue sparks down toward the backside of the motor


Assuming that you have the V-6 engine, It sounds like you have a problem with one of the coil packs. To fix this you need to know which cylinder has the miss. Then replace the coil that drives that cylinder. FYI. Each coil normally drives 2 cylinders, making for a total of 3 coils in the pack. Each can be replaced separately.

Good Luck..... TJ

Nov 01, 2009 | 2001 Chevrolet Malibu

3 Answers

Can someone tell me what check engine code P0 304 means?

You have a misfire on cylinder 4 that is serious enough to store a code. If the check engine lamp flashes while you drive, it is worse, and is CATALYST DAMAGE level. This can be caused by loss of spark, loss of fuel, vacuum leak, wiring, and a dozen others. Check if spark reahes the plug, check for injector pulse, check for carbon tracking or fouling on the your way up.

Sep 19, 2009 | 2001 Jeep Grand Cherokee

1 Answer

Misfire code on 2001 2wd jeep cherokee what can we try

I would lean toward a dead coil pack or a dead plug, there is no way to test the coil pack other than removing it and keep the wires plugged in and install spark plugs in the grommet cavities of the coil pack and check for spark across all cylinders( assuming its a 4.0L)

Apr 21, 2009 | 2001 Jeep Cherokee

1 Answer

Spark problem on 97 TJ

Mine did the very same thing and it turned out to be the crank sensor back by the bellhousing drivers side easy to change.

Oct 02, 2008 | 1997 Jeep Tj

2 Answers

2001 Hyundai Sonata

I think that the coil packs has installed wrong because you said that the problem started when you replaced them... so i think you should re-install.

Jul 02, 2008 | 2001 Hyundai Sonata

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