XJ ( X351 ) 2009 - 2019

Misfire after Upper outake hose replacement

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Old Jun 30, 2020 | 03:22 PM
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Default Misfire after Upper outake hose replacement

Recently had my upper outtake hose replaced after it decided to expand and shoot anit-freeze everywhere. I took it to a repair shop here in Jacksonville Flordia, one with great reviews. I drive the car off the lot, and the car appears to have a slight pull or sputter when I drive the car. I called the shop, the gentlemen told he they only serviced what was needed to be repaired. However, there is a misfire with the car. He raddled off 4-5 different codes none of which I took note of.

I personally believe this is something to get more money out of me. I am considering taking the car to a more commercial spot such as PEP BOYS. Has this happened to anyone else. I am driving at 2013 Jaguar XJL 3.0 with 43K Miles.

Any assistance or general understanding will be appreciated.
 
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Old Jul 1, 2020 | 10:06 AM
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Don't know but do avoid PEP boys. They will know nothing about Jaguars.

Is there anyway you can DIY the problem?
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Old Jul 1, 2020 | 11:03 AM
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@ clubairth1
I dont know if I want to even take the chance. I Went to Autozone last night. had them run a diagnostic;

P0303 Cylinder 3 Misfire Detected
PP0353 Ignition Coil C Primary/Secondary Circuit

This to my knowledge is a bad coil pack $71.00 at autozone,
 
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Old Jul 1, 2020 | 01:10 PM
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Start by swapping coils and maybe checking plug first before buying a new one. if misfire follows coil, its a coil. If its same cylinder, may be a plug or something else.
 
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Old Jul 2, 2020 | 11:51 AM
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I would follow Rummy636's advice.
I think it looks to be a simple repair?

Just be aware that it's recommended to replace all the coils as you might find them failing one by one because of age. So you might consider making it a project and plan to replace all 8 plugs and coils.
Do you have leaking cam cover gaskets or spark plug well gaskets? It would be a great time to replace them since your taking it all apart anyway?

Just watch out for the brittle plastic clips on the coils. Very common to break as they get cooked by the engine heat.
They can be replaced with new.
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Old Jul 2, 2020 | 12:25 PM
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Thanks for you guys follow up.

I've never got under the hood. To be honest, kinda worried about doing so. I've worked on cars in the past but nothing with a supercharger sitting atop it. Just wondering are the coils on top or closer the middle of the engine. Please excuse my inexperience, as I've only changed the Coils in a Suzuki Jeep prior to this. Considering dropping the car off here: https://www.thejaguarexperts.com/

As they specialize in Jaguars only.
 
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Old Jul 2, 2020 | 12:30 PM
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Engine is COP so 8 coils. 4 on each cam cover.
If you can let us know if a new coil fixed it.
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Old Jul 2, 2020 | 09:17 PM
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It's a 3.0L - 6 cylinders, not 8.
 
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Old Jul 3, 2020 | 11:51 AM
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Oops!
6 cylinders = 6 coils
Replace them all when your in there.
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