Crank no start no codes?

Tiny
NATHAN JENKINS
  • MEMBER
  • 1995 JEEP CHEROKEE
  • 5.2L
  • V8
  • 4WD
  • 180,000 MILES
No codes. Messing around crank sensor clip is broken I cleaned it taped it secure. Cleaned map and throttle body sensor and cleaned throttle. I had cleaned the crank sensor 3 wire connection last, at each cleaning g engine would not crank turn over good. After the cps connect cleaning it started and idle a long time then shut down ot did crank and I inked it for awhile then shut off next day again no start. Also after cleaning m as p and throttle and tps. I had s friend help with checking spark, no spark. Then it ran after I cleaned and secured c p s
Its the crank sensor isn't it.
I cant get to it, it has some kindve plate covering the area what do I do.
Thursday, January 8th, 2026 AT 10:21 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,182 POSTS
Hi:

Based on your description, my first guess is the crankshaft position sensor (CKP). If it fails, you won't have spark. Also, when they begin to fail, they are adversely affected by heat. Do me a favor. Take a look through this link and let us know if it mirrors what you are experiencing.

https://www.2carpros.com/articles/symptoms-of-a-bad-crankshaft-sensor

I suspect it has to do with the sensor. If the retainer clip is damaged, it needs to be replaced.

Let us know.

Joe
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Thursday, January 8th, 2026 AT 7:46 PM

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