Question about 1994 Jeep Grand Cherokee

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1993 jeep cherokee. Can't get spark out of coil.

1993 jeep cherokee. Can't get spark out of coil. replaced coil..still no fire. multimeter shows no volts from coil to distributor. STUMPED

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Check the Crankshaft Position sensor. Usually it will reveal itself through the check engine codes. If this is faulty, the coil will not get the signal it needs to fire.

Posted on Jul 01, 2009

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93 Jeep Grand Cherokee, no spark from ignition coil


so gue$$ stinks sure.... why do that.?
all it takes is a scan tool to find this.

first you need to learn ASD relay rules.
to start a jeep 1993 to NOW.
the ASD most close, cranking,does it?
and most stay closed cranking and NOT drop out in 3 seconds.
that means crank for 5 seconds and if the ASD drops. at 3.?
easy huh?
if it did DROP i can tell you the ECU will set DTC errors you failed to see because you did not scan it during those 5 seconds.

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

first is fuses.
lets make a list. works on all jeeps 93+
  1. battery changed. to 12.6vdc reseted.
  2. keyon, CEL lamp glows, if not fuse blown to PCM (ECU)
  3. engine cranks fast.
  4. Asd realy pulls in and holds.
  5. scan tool shows, what? BINGO. DTC errors, easy huh?
  6. ok no DTC, errors, live for 5 seconds, cranking,so lost spark? must be bad coil or wired wrong. (change it 1 wire at a time?ooops)
  7. coil dead, its not DTC caused, so if no DTC that means the PCM did not see Coil ignitor errors. to coil see? i bet its got TDC;s if not then i check the coil inputs. to be sure the PCM ignitor is firing the coil correctly with my scope, oops no scope.
  8. if no scope you get to buy a new PCM. Wild guessing bad ignitor.
  9. i use a Innova 3140 scan too that does 93-95 jeeps, for about $150 only about 1.5 hrs shop labor value. and is Investment grade tool, it would have saved you 3 parts, guessed already.

Mar 18, 2015 | 1993 Jeep Grand Cherokee

1 Answer

My jeep cranks over but no fire


is it getting spark at the plugs also check your fuses

Feb 18, 2013 | 1993 Jeep Grand Cherokee

2 Answers

How to replace spark plugs on 2000 jeep cherokee classic 6 cyl.? Also does 2000 cherokee have inline fuel filter?


TO REPLACE SPARK PLUGS YOU REMOVE COIL PACK MOUNTING BOLTS THEN REMOVE THE COIL PACK WITH BOOT OVER THE SPARK PLUG.YOU HAVE 6 INDIVIDUAL COIL PACK TO EACH CYLINDER. YOU NEED A 3/8 RATCHET WRENCH - LONG 3/8 EXTENSION -SPARK PLUG SOCKET - SPARK PLUG GAUGE.AND TORQUE WRENCH.THE 2000 MODEL JEEPS FUEL FILTER INSIDE THE TANK.1993 - 1996 MODEL JEEPS FUEL FILTER LOCATED LEFT SIDE OF THE VECHICLE NEAR THE FUEL TANK.

Jul 20, 2010 | 2000 Jeep Grand Cherokee

1 Answer

Cherokee 5,2 v8 1993 missfires when its varm or driven 5km


the most likely cause of miss fireing is, plugs, plug wireing, coils may be bad, and when vehicle gets warm they break down. check for proper spark from each coil.

Oct 24, 2009 | 1993 Jeep Cherokee Country

1 Answer

1993 jeep cherokee: no spark coming out of NEW


crankshaft position sensor is source of problem as this controls spark

Jun 27, 2009 | 1993 Jeep Grand Cherokee

1 Answer

1993 Jeep Grand Cherokee engine problem


If the crank sensor (reaR at bellhousing) is dirty, will not start, clean up and visually inspect

Apr 27, 2009 | 1993 Jeep Grand Cherokee

1 Answer

1993 jeep grand cherokee laredo 4.0 no spark


First I would change the plugs, wires, distributor, and rotor button next I would make sure the firing order is correct then have timing checked if all check out have the cylinders tested.I hope this get your Jeep up and running. Please Rate Me . And you can always ask me wutxtye0rjd9d9ekmodqt1eoxkvn9hr9qjz1l3dabggyud7sdgr36czsrfxqenadhnijx9nfayi+sz1sug0aaaaasuvork5cyii=

Apr 26, 2009 | 1993 Jeep Grand Cherokee

2 Answers

1993 JEEP GRAND CHEROKEE LAREDO IM TOTALLY BAFFLED


Back up a minute...Do you have spark from the coil wire? (juice from coil) If so, change or check rotor and cap (wires do not all go bad at same time so unless they are wet, likely at least good enough to start engine)

Mar 05, 2009 | 1993 Jeep Grand Cherokee

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