Looking for possible culprits of no spark

ZeusDaCat

Member
Supporting Member
Joined
Aug 9, 2022
Messages
27
Location
Colorado
Background
- Wife was driving the Jeep and as she was slowing down it started stuttering, then died and she had to pull it over
- Wouldn't start back up and it just cranks

What I've done so far
- Verified fuel pump kicks on
- Did the starter fluid test by spraying some into the intake and still had no start, just cranking
- Checked for spark out of one of the spark plug wires while the Jeep was cranking and had nothing
- After some research I found that a common culprit is the crankshaft position sensor so I replaced it with a MOPAR one - https://www.rockauto.com/en/moreinfo.php?pk=5102889&cc=1431777&pt=7196&jsn=931
- Even with replacing the crankshaft position sensor I still have no spark
- There are no codes either

Looking for ideas of what could additionally be causing issues on my 1999 Sport. I was reading on the forum that another possible sensor issue was the camshaft position sensor but it doesn't look like for the 1999 model year you can directly buy that (Looking at Rockauto and there is one for 2000 and newer)?
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Here are some photos of the distributor assembly


IMG_5189.jpg


IMG_5190.jpg
 
Last edited:
The camshaft position sensor is located below that plate under the rotor in your last photo, those black wires lead to it. However the engine will still run if it's defective. At this point I'd be suspicious of the ignition coil.
 
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