Question about 1999 Jeep Wrangler

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Check engine light goes on off making my jeep run rough;'

Jeeps starts bucking and then turns off

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

GasparMacari
  • 166 Answers

SOURCE: Hard starting when cold ( engine cranks normally )

see if your engine has a ECT sensor (temp sensor that delivers information to your ECM) they are installed on the intake side of the cylinder head, it usually has 2 cables, have it checked replace if necesary

Posted on Nov 19, 2009

  • 3640 Answers

SOURCE: 2002 jeep grand cherokee with 4.0 engine will die but restart

p0340 is the cam shaft sensor, this will cause it to cut off while driving, hardtime starting, p0351 is the ignition coil A primary/secondary curcuit mal function. p1391 is ignition system misfire, this could be plugs, wires, or coils. first of all have the cam sensor changed and it may correct the rest of the codes. when fixed turn light off with obd2 scanner. if you do not have one, then any auto parts store will erase the codes fo free of charge.

Posted on Jan 21, 2010

  • 25 Answers

SOURCE: My 98 Jeep Cherokee has a rough idle after

look at rotor under cap cheap buy a new one there cheap.

Posted on Feb 24, 2010

  • 14036 Answers

SOURCE: My 2001 Jeep Cherokee rough idle on hot start up

SOUND LIKE INTAKE MANIFOLD VACUUM LEAK OR VACUUM HOSES VACUUM LEAK.ALSO DIRTY FUEL INJECTORS WILL CAUSE THAT PROBLEM YOU DESCRIBE.

Posted on Apr 02, 2010

ZJLimited
  • 17970 Answers

SOURCE: Jeep Grand Cherokee 1997. Getting check engine

Code 12 = Recently disconnected battery

Code 14 = Coolant sensor high resistance or shorted

Code 43 = Knock sensor or Electronic spark control circuit fault

Code 55 End read code.

Hope helps (remember rated this).

Posted on Jun 12, 2010

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1 Answer

2001 jeep rough idle when started


  • CEL lamp on key on?
  • all fuses good?
  • CEL goes out running (check engine light)?
  • no, then scan it.
  • yes, then get a tuneup, every 60kmiles, minimum.

rough idle means MISFIRE
this can be just a dirty EGR valve
but you never stated what engine is in the bay of the many.

Aug 01, 2014 | 2001 Jeep Grand Cherokee

1 Answer

The check engine light is not coming on when i start my 1997 jeep grand cherokee ?


Sounds like a few issues. The check engine light should come on when you turn the key to "ON" without attempting to start it. If it doesn't, the bulb could be bad and that would mean removing the instrument cluster to change the bulb.
The rough idle issue could be a partially stuck open EGR valve. Remove the valve and clean it good. While you have it out make sure the diaphragm moves freely. Replace the valve if you can't clean it or if it doesn't move.
Go to your local auto parts store and ask them to read the codes (most store provide this as a free service).

Jul 06, 2014 | 1993 Jeep Grand Cherokee

1 Answer

98 jeep cherokee sport flashing engine light


The check engine light is because all check engine light codes are caused by components that affect emissions. It's not actually an engine problem, it's a problem with either your O2 sensor, MAF sensor, fuel/air ratio, pyrometer, or exhaust.
______________
gm diagnostic tools

Nov 22, 2012 | 1995 Jeep Grand Cherokee

1 Answer

Check engine light has been a problem since I bought it in 2001. Runs rough when I start it, then engine light keeps blinking. Stop, restart it and just the light stays on but runs okay. Seems this is a...


I suggest scanned the PCM to know exactly what fault code is stored there. With this code number could send additional details to diagnosys and solve it.

Keep in touch.

Mar 01, 2011 | 2001 Jeep Cherokee

2 Answers

Just changed the 2.5L engine in my 89 jeep wrangler and the engine turns over but won't start it just backfires like the timing is off, but thats not adjustable on this engine. Where did i go wrong?


Have you checked the firing order to make sure the plug wires are in correct order. Sometimes an engine will run but rough if 2 wires are mixed but it could be that there's more than 2 mixed up.

Sep 19, 2010 | 1989 Jeep Wrangler

1 Answer

My 2001 Jeep Cherokee rough idle on hot start up


SOUND LIKE INTAKE MANIFOLD VACUUM LEAK OR VACUUM HOSES VACUUM LEAK.ALSO DIRTY FUEL INJECTORS WILL CAUSE THAT PROBLEM YOU DESCRIBE.

Apr 02, 2010 | 2001 Jeep Cherokee

1 Answer

Oil pressure gauge goes up when car started, but then down to 0


u Have a problem with the oil sending unit. The sensor is located beack right side of the engine block. Take out the switch and make sure u have good oil PSI. Should be 6 psi at idle and around 50 at 4000 RPM. If the presure is ok replace the switch they are very cheap about 20 bucks. Please rate.

Aug 10, 2009 | 1998 Jeep Wrangler

1 Answer

2001 Jeep Cherokee Sport - check engine


warped heads will cause this...if it over heated badly thats going to be the problem

Jul 22, 2008 | 2001 Jeep Cherokee

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