2005 CRD
178,xxx miles


Drove back to college (Wyoming) a couple of weeks ago from my home in South Carolina. The Jeep did spectacularly, logging roughly 30MPG the entire way.

I changed the oil about 700 miles ago when I arrived in WY, but a new noise developed on the passenger front side of the engine. It sounds just like the normal tick of a diesel engine but it is a bit louder. It usually only happens upon startup and is either completely gone or at least reduced in sound by the normal engine sound by the time I start driving.

Again, it sounds just like the normal diesel click just louder and on the passenger side of the car.

I've already taken the cover off and attempted to listen to the engine in various spots, but after reading the FSM, it could be a slew of problems! Any advice or areas to check? Thanks for the help!

PS: Drove it the other week for a round-trip, all highway total of 250 miles, and it actually hit 38-41 MPG! Is this also a normal occurrence?

Check the Alternator Decoupler, even though sound is coming from Passenger side, it wouldn't hurt to check.

There isn't much on the passenger side except turbo vacuum stuff and the turbo, the air box, and the coolant reservoir.

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Silver 2006 KJ 2.8L CRD Limited:
GDE ECO Tune / Fumoto Valve / E-Tecno GX3123 7v Glow Plugs / 2nd Gen Fuel Head / Mishimoto RED Hoses / Rockers/Lifters @ 114k / Hayden FC + 11 Blade Nylon / Sears P1 Battery / Transgo 45RFE-HD2 Reprogramming Kit / Timken Front Bearings

Thanks for the quick reply, Hexus! I'll check the alternator decoupler first thing in the morning.

As to your point regarding the items on the passenger side: you're right, which is leading me to think it is the passenger side of the engine that could be making the noise. After all, it happens only whenever I start up the engine.

It could be a exhaust leak.
All the exhaust parts are on the passenger side.
The exhaust flex joint is a possibility.

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U.S. Army Retired