Question about 1999 Jeep Wrangler

2 Answers

My jeep is not getting fire what are the possible reasons its not the crankshaft position sensor or the coil.

My 99 jeep wrangler is not getting any fire i have checked the crankshaft position sensor and it is working fine as it should based on the tests done with a multimeter . What else could it be? it is a 4 cylinder 2.5 liter engine.

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  • _-__-___-_
    _-__-___-_ Aug 07, 2015

    not getting fire means you checked spark,
    or are the exhaust ports silent (no fire there)
    did you check all 4 cylinders for spark not just one?
    did you scan it, yet, cranking,
    99% of times the PCM will tell you P03xx is the reason, cranking. for 5 seconds.
    but will not tell you if the rotor,cap /wires or spark plugs are bad.
    and all do every 60kmiles. called a
    TUNEUP
    ever get a real tuneup this decade?

    the PCM will in fact log a DTC error.
    for dead coil (primary side only)
    dead techo line
    dead CMP
    DEAD CKP and intermittent too.
    so scan it or go broke gue$$ing?
    it will will show a bad igitor.

    why not scan it?

    does the distrib. rotor turn cranked.

    the free FSM cover this.
    posted 100s of times (going for world record
    http://www.jeep4x4center.com/knowledge-b...

    see ignition chapter.

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  • Jeep Master
  • 20,706 Answers

Not getting fire means you checked spark,
or are the exhaust ports silent (no fire there)
did you check all 4 cylinders for spark not just one?
did you scan it, yet, cranking,
99% of times the PCM will tell you P03xx is the reason, cranking. for 5 seconds.
but will not tell you if the rotor,cap /wires or spark plugs are bad.
and all do every 60kmiles. called a
TUNEUP
ever get a real tuneup this decade?

the PCM will in fact log a DTC error.
for dead coil (primary side only)
dead techo line
dead CMP
DEAD CKP and intermittent too.
so scan it or go broke gue$$ing?
it will will show a bad igitor.

why not scan it?

does the distrib. rotor turn cranked.

the free FSM cover this.
posted 100s of times (going for world record

http://www.jeep4x4center.com/knowledge-base/index.htm?utm_source=cj#service

see ignition chapter.

Posted on Aug 07, 2015

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  • Jeep Master
  • 1,249 Answers

I think your 2.5 still has a distributor...check for a cracked cap, or cracked rotor...same symptom...hope this helps.

Posted on Jul 14, 2015

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