Chrysler Repair: 99 2.5L Cirrus: no start/no spark, crank sensor, coil resistance


Question
QUESTION: I recieved a notice that an answer was ready for me !  I could not click on the link so I typed it in and can't find it !!!!!! still need help with this car

ANSWER: Here is the answer that I sent to a 'Tim' recently:
Hi Tim,
If you have power on the dark green/orange while cranking then the rotational sensors are at least putting out signals that satisfy the PCM. No spark might then be attributed to a failer coil secondary (winding should read 12,000 to 18,000 ohms, not 7,000 ohms) or failed rotor or a cracked distributor cap. So see if the rotor is patent between the spring button and the tip of the rotor, and inspect tha cap for cracks. Remeasure the winding resistance and if at only 7,000 ohms then that would certainly cause a very weak spark or no spark.
Please "rate" my answer (see below).
Thanks,
Roland

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QUESTION: Thanx for your responce !   I am concerned about the no noid light flash I will tripple check things again !  Broke off the lower cap screw in the prosess , crank sensor won't come out , etc .   lucky me to get this car !Thanx again

ANSWER: What is a 'noid' light flash?

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QUESTION: Noid light is nothing more than a test light connected to the injector connector to check for power and ground to a injector .   So I am thinking the coil seconday may not play a role if the injector wont work eighter  makes me think more on the primary side of things ! If the cam and crank sensors and asd relay work ----why no spark ?  Secodary coil resistance afects primary or pcm ?  Maybe pcm bad ?  checking this wrong ? any common problems to look for ? I must be missing something ! I still thank your for your time !  This car is taking up space in my garage instead of my own toys LOL  Any thoughts let me know please ! Tim

Answer

Hi Tim,
If you have power on the dark green/orange while cranking then the rotational sensors are at least putting out signals that satisfy the PCM. No spark might then be attributed to a failer coil secondary (winding should read 12,000 to 18,000 ohms) or failed rotor or a cracked distributor cap. So see if the rotor is patent between the spring button and the tip of the rotor, and inspect tha cap for cracks. Remeasure the winding resistance and if at only 7,000 ohms then that would certainly cause a very weak spark or no spark.
Please "rate" my answer (see below).
Thanks,
Roland


All I can add is that because the autoshutdown relay is closed when you are cranking means that there is satisfactory pulsing from the cam and crank sensors so there should also be signals going to the distributor to ground the spark coil primary wire which should then produce a spark at the proper moment. But if the coil secondary resistance is only 7k that would mean that the spark voltage is about 1/2 of what is should be, and thus you probably are not getting any spark sufficient to cross the gap at a spark plug. Thus, no spark. Measure that resistance of the spark coil secondary again and indeed if it isn't in the range of 12 to 18k ohms then you need a new distributor.
Roland

Here is the history of this question:

1999 cirrus 2.5    no spark , no noid light flash, no codes , no rpm signal on scan tool  - crank and cam sensor seems ok turning over by hand - have power at green orange wire at alt.  - green orange wire at dist.  has power test light wont blink cranking with starter but does turning by hand ,  coil primary resistance .7 ohms secondary  7000 ohms ,  not spark at coil tower , fuel pump runs but i think its out of gas anyway,  cant check fuel presure with out special tube   I'm running out of things to check I must be missing something  Help Please