Cranks but nothing - Page 3 - JeepForum.com
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post #31 of 36 Old 10-18-2020, 11:45 AM
Wabatuckian
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Originally Posted by BrkCaddy View Post
Here’s what happen. Was driving then stopped running. Cranked and nothing. Has new coil, distributor and wires. Jeep has no spark no fuel and no cel. I google drive those symptoms and read it was the capacitors in the écu so I changed them out.
I'd really check the CPS and the pickup inside the distributor, whatever they're calling it.

Josh

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post #32 of 36 Old 10-18-2020, 12:27 PM
Luuca
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Quote:
Originally Posted by BrkCaddy View Post
Here’s what happen. Was driving then stopped running. Cranked and nothing. Has new coil, distributor and wires. Jeep has no spark no fuel and no cel. I google drive those symptoms and read it was the capacitors in the écu so I changed them out.
It is possible you have several issues that are presenting at the same time.

IMO change the Crank Position Sensor and go from there. Generally, its a $75 part and could get the jeep running again.

If that doesn't fix the running part, I'd be surprised.

CEL could be blown bulb or malicious cutting of the wire by PO to hide issues from prospective buyers.

I'm not the guy to talk about electronics with. Searching for cranks but no start - no spark, netted me nothing but CPS repairs for both YJ and XJ. I like to keep it simple and try and handle one issue at a time. IMO it probably always had a no CEL issue that you only recognized once the CPS went bad.

if you can live with a running Jeep with no CEL for a bit until you truly diagnose the CEL, change the CPS and report back. It's two 10MM bolt on the driver's side upper bell housing. Be careful not to drop two 10 mm sockets into the bell housing. ask me how I know.

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post #33 of 36 Old 10-18-2020, 12:28 PM
Luuca
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Quote:
Originally Posted by Wabatuckian View Post
I'd really check the CPS and the pickup inside the distributor, whatever they're calling it.

Josh
Crank Position Sensor is on the bell housing.

Cam Position Sensor is inside the distributor cap.

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post #34 of 36 Old 10-18-2020, 02:07 PM
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Make sure you have power to coil. Our 93 YJ had a problem with a bad wire/connection


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post #35 of 36 Old 10-18-2020, 04:45 PM Thread Starter
BrkCaddy
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Thanks everyone ill try these and let you all know
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post #36 of 36 Old 10-18-2020, 04:52 PM
Wabatuckian
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Originally Posted by Luuca View Post
Crank Position Sensor is on the bell housing.

Cam Position Sensor is inside the distributor cap.
Correct.

I was finding several different names for the cam sensor. I wasn't sure what terminology I should be using for this year Jeep. The diagrams I'm finding call it the "sync signal generator."

Josh
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