Will not start seems to be getting fuel and is turning but no spark even with new rotor cap, and coil. Getting codes 12, 11, and 55
Code 12 - BAttery disconnected recently
Code 11 - Oxygen Sensor faut code
Code 55 - End Test
Hope this helps.
Correction: Code 11 means 11 no crank signal to computer. Fault in wiring between crankshaft position sensor (CPS) and ECM ( PCM or computer ) or faulty CPS. Generally, that sensor is located on the passenger side of the engine, at the very rear where the seam between the engine and transmission is located, just above the surface of the trans' differential housing. It is held in place by a single bolt.
I changed my crankshaft sensor about to weeks ago and my grand Cherokee 96 started doing this today. What's up with that?
I changed my crankshaft sensor about to weeks ago and my grand Cherokee 96 started doing this today. What's up with that?
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SOURCE: 98 jeep cherokee wont start it is not getting fuel
i just had the same problem on a 1997 4.0 . crank sensor is most likely bad you can spray starting fluid in the intake tube and car will start meaning you have spark but injectors will have no power I.E. crank sensor is bad 38.00 dollars at local parts store dealer told me 170.00 dollars make sure you push it all the way in when you install it i just posted a fix for this on this site today . after you start the car if it gives a misfire code and check engine light comes on loosen the crank sensor bolt and push it in again then tighten the bolt the cardboard on the sensor for the air gap wares off a little bit enabling you to push the sensor in a little bit more misfire should be gone there is only a few thousands of an inch adjustment for the air gap and it makes a difference. hope this helps
SOURCE: 97 jeep wrangler starts then stops right away
Had same problem with my 97 sport, after changing almost all of the ignition components, it turned out to be the TPS.
SOURCE: intermitent starting
sometimes the ais(automatic idle speed) valve gets loaded with
carbon. its an easy fix. you have to remove the throttle body
invert it and you will see the ais chamber and look in and see if it is
built up with soot. carb cleaner should work.if you can remove
the valve for better cleaning. peterjai
SOURCE: My 1997 jeep wrangler 2.5L
Hi and welcome to FixYa!
This will be caused by a faulty distributor coil. You may want to swap the coil and observe how it goes.
Hope this helps and thank you for using FixYa! Have a good one!
SOURCE: 1997 jeep grand cherokee laredo
Code 12 is battery having been disconnected. It sounds like you may have the firing order right but may be one tower off in the rotation. Sounds like engine timing is too far advanced. Remember, I'm not there so I can't see or hear what you can, but that's what it seems like.
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