96 zj wont start - Page 2 - JeepForum.com
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post #16 of 18 Old 08-24-2013, 10:31 AM
mtnsammy
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1990 XJ Cherokee 
 
Join Date: Mar 2006
Posts: 83
Thanks ZJ. I did do the test for the Crank sensor as shown in your posting. When the probes are touched together it reads Zero. When touched to the B and C terminals it also reads zero. Am I still not reading this right? I can always bang my head on concrete more? When I pull the Crank Sensor I will be able to inspect the wires and condition of the sensor much better. I am also going to pull the coil and test it as well. I cannot think of any other tests. Sunday, Tomorrow, will be a long day in the hot sun.

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post #17 of 18 Old 08-24-2013, 10:57 AM
ZeeJay1997
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1997 ZJ 
 
Join Date: Dec 2008
Posts: 8,580
Quote:
Originally Posted by mtnsammy View Post
When the probes are touched together it reads Zero. When touched to the B and C terminals it also reads zero.
Perfect diagnosis of a bad crank sensor.

The linked test as written, checks for an open circuit with the meter set on a maximum of 10k ohm scale. if the resistance value is more than the 10k, the reading will show an open circuit which is the desired state.

What you are reading is a short, known in the test as a 'low resistance'. Anything between 0 and 10k qualifies the sensor to be bad.
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post #18 of 18 Old 08-24-2013, 12:59 PM
mtnsammy
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1990 XJ Cherokee 
 
Join Date: Mar 2006
Posts: 83
Geez hitting my head on the concrete didn't work well this time. Unfortunately the Mopar part is hard to get locally. I will try around to see what we can find.
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