JK Wrangler Broken Valve Spring

[ray17]

Hi Guys,

I am new to the jeep forum.
I bought a 2009 JK wrangler, less than a year ago. It was good condition and low k's.

However the other day, returning to my Jeep at the car parks after a couple of hours, starting the car it began to run very rough almost dying. Where it was driving perfect prior.

It has been diagnosed as a broken valve spring in cylinder 6.

I am just wondering if this is a common issue for others?
What way did you go to fix the issue, new engine or fix the cylinder head?
I live in south east melbourne, any recommendations of Jeep specialists who could fix this?

For a car of this age it seems very unlikely to happen so I thought I would check if its just my luck or something that others have experienced too?

Thanks

[Grahame]

Double Black Offroad in Moorabbin, USA4x4 in Mordialloc or Poly 4x4 in Huntingdale. We're spoilt for choice in SE Melb.

[MightyMouse]

Is this your JK being discussed ?

http://www.ausjeepoffroad.com/forum/showthread.php?t=142577

[kim.beveridge]

Hehe. Yes that is the one I looked at. Good luck with the repair Ray17, hope it works out.

[ray17]

any idea if the 3.8l v6 is non interference or interference

[Wazza D]

Pretty sure it is an interference engine.
Doesn't make much difference though if you have dropped a valve due to a broken valve spring unless it has remained supported by the collets to prevent it from entering the piston space.
That is the first thing I would have checked.
If the collets are still in place you may be able to simply replace the spring with minimal dismantling of the engine. Otherwise. .....? !!!