Should we assume they did an oil pressure test upon completion and checked the condition of the oil pump rings while they had the engine apart?

 

Thanks everyone for the reply's!

I dont think its a slipped liner as it passed the block pressure test...unless the dealer is outright lying.

I was kinda leaning toward exhaust leak but from reading the forum its seems that is when the engine/exhaust is cold the goes away once warmed up.

I'll find out the oil weight. Guess its 10w40.

Dont think we did too bad on the price...~$12k.

Low oil pressure might be another cause. It does go away under acceleration (unless engine noise just drowns it out).

Thanks for the suggestions, I'll keep this updated if I find the cause.

 

The liners aren't wet. They can move and still not fail a pressure test, if the block isn't cracked behind them.

 

2nd this.

I would have them address the issue as you paid a premium price.

 

Ah, thanks. It only happens at operating temperature at idle, so this could be the issue as well.

 

My '04 used to tick like that but stopped after I installed a 180 degree thermostat.

 

Yes! Reading up on slipped liners last night and was thinking too myself that if I got the operating temperature down it might help the issue.

 

It is definitely worth doing either way, your Disco will thank you. Heopefully it will stop your ticking as it did in mine, if it doesn't then at least that is one thing you can check off the list.

 

For $12,000 the dealer could replace the engine and still make money. They probably bought the car wholesale for $7,000 ;-)

 

But it is a dealer we are talking about here. Dealers dont give a dam about the customer, they only care about making $$$$ profit.