Dylan5454

2001 XJ 4.0L
About 2 weeks ago the engine light showed up, i read the code and got multiple misfire on cyl 2 and 5. Spark plugs are good and got a new ignition coil rail and that didnt fix it. Is there anything thats common. Im new to these

cruiser54

Little bit known to get carbon under the valves. How high do you ever rev it?

Dylan5454

Not that high, it's auto so I don't really take any notice to be honest. Is there anything I can do to see if it is that?

Roler

You'll need spark, fuel and compression in the process, so I'd:
- check fuel pressure (45 psi +/- 5)
-check for consistent and quality of spark
- if those are good, do compression test (120-150 psi, not more than 30 psi difference between cylinders)

Dylan5454

Just found this 🙃 bit hard to see but theres a bit of coolant there

Roler

Where is that, is that inside the engine?

Might want to do that compression test now​​​​​​

Dylan5454

Yep, looking down into the rocker cover

Hotroddinlogan

If its a distributor and spark wires ignition you might want to change all the wires. Also check the fuel injectors, the crankshaft position sensor and camshaft position sensor. It might also by an o2 sensor.

cruiser54

It's distributorless.
Could you be kind enough to post the tests, or links to the tests, for the 4 things you listed as possible failures?