Question about 2001 Jeep Wrangler

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2001 jeep wrangler sport 4.0 liter engine starts then shuts off. Is this the crankshaft sensor

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  • Jeep Master
  • 20,706 Answers

Engine stalls
there are over 50 reasons for stalls. (even burned intake valve or even a 10cent valve keeper ,missing)
but in physics (we use gauges to find truth)
it 5 reasons, what to TEST or Gue$$>
the list and matching tools if you ask.

  • battery power never dropping below 13.3v running. or PCM can shut down near or below 11v.
  • Lost engine compression. 1 or more cylinders.
  • lost spark or timed wrong. (cams can go off time and take spark with it)
  • bad fueling. to much and too little.
  • EGR stuck open. if you have one, many 4l dont, it uses a detuned cam to , prevent NOX commissions.
want to test?

Posted on Aug 09, 2014

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Posted on Jan 02, 2017

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Anonymous

  • 91 Answers

SOURCE: 1992 jeep wrangler 2.5 liter engine still overheating

Did you put a new cap on the radiator? Small as it seems, if it does not provide an adequate seal on the radiator, than the system does not get pressurized, thus keeping the boiling point around 212 deg. your engine gets way hotter than than normally. When sealed right, the pressurized system raises the boiling point to close to 300. thats how is works. If thats not it,(assuming it is the last thing replaced) than you might have either a cracked head/ head gasket/ valve guides, cooling ports, basic large dollar items. Lets hope for your sake the problem is still in the cooling system, before you look at the motor. If you take out the sparkplugs, you'll be able to tell real quick, rusty, burnt whitish-orange looking condition. Good luck

Posted on Aug 15, 2008

Anonymous

  • 188 Answers

SOURCE: 1998 Jeep Wrangler 2.5 liter motor timing specs?

you could have vacumm problems making it seem like the timing is off, but the other guys are right on the timing!!!! it could be throw-body problems, like crack manifold problems. This year has thhis type of problem sometime. Try spraying WD-40 around the vacuum hoses, & manifold to see if the motor changes rpm????

Posted on Feb 14, 2009

Richard Scordino

  • 6982 Answers

SOURCE: 1994 jeep wrangler no fire

Crank position sensor has a higher failure rate than it should...however i would not change it "at random" Check for continuity between b&c terminals of the sensor with a digital ohmeter.
There should be no continuity between them (b&c should be marked on connector) No continuity reading is same as when probes are not connected to each other.
I really dislike when people try and help and use terms that owners can't understand ... "check your zxy and qtr then add an abc" dosen't seem helpful. I hope I am as clear as I can be!!!
Good luck.

Posted on Apr 15, 2009

Anonymous

  • 76 Answers

SOURCE: 2001 jeep grand cherokee 4.0 engine shuts off

it is possable/likely a bad ECTS (engine coolant tep. sensor), this can cause the injectors to allow to much fuel into cylinders and cause a low compression and or flooding situation, good luck, marty

Posted on Jun 07, 2009

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why not say , where you say or head this word.
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or point to it.
or photo it.
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