So I dont know when or if the thermostat has ever been replaced (bought the libby at 70K) and it has always sat right at the 25% line maybe a little bit over for the past 6 mos or so. Then a few days ago I had to pull out in front of a car at a light and put the petal to the floor to get out of the way and stayed on it for just a few seconds. I looked back to my enjoyment to see the car behind me following me and coming out of a nice cloud of smoke . Then a few mins later I noticed that my gause is not sitting inbetween the 25% and 50% marks. Has anyone else had this happan to them or noticed it? I wa going to change it soon but now I am tempted to wait. As for the exhaust, all my hoses and intake are good, im not worried about the little bit thats normal.

The weather is warming up in most places and that may be why yours is running warmer. Normal is one tick left of center

The smoke you engulfed the guy in is a sign that your Italian VM engine needs a Italian tune up

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Atlantic Blue 06 CRD Limited (his)
Joined by a 2000 XJ Classic (hers)

Apparently a double topic post. My comments on the other post.

If your temp gauge on a warmed up engine is not sitting dead vertical or no more than 1 tic left of vertical then your tstat has failed. Kapalczynski has done a lot of research on this as part of his tstat project and found that the tstat spring weakens over time causing the tstat to open too early and stay open hence the engine never really warms up in cooler weather (below 70 degrees F or so and without AC) unless it's pushed hard. Eventually it gets to the point where the temp gauge won't go any higher than 1 tic right of the 1/4 mark.

Smoke under hard throttle is not abnormal but it's not desirable. Mine did that until I got the GDE EcoTune.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs

LostJeeps.com forum was having an issue at the time. I know because I wasn't sure if my post went through as well.

I suspect it's smoking because of low operating temps. You could probably put the t-stat off until fall. You'll be running warm all summer. The gasser FSM says that running cool/cold causes the oil to sludge up. Wonder if that's the case with a diesel?

My t-stat and fan clutch were both bad when I bought mine in March '10. The EGR was also causing problems. Pretty typical for a CRD whose owner used only dealer service. It had 69K miles on it.

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'05 Sport CRD 107k miles. NOBODY knows everything.

As long as daytime temps are above the mid-70s F you can probably hold off on a tstat replacement. I did last year and most of the time the beast would get to 176 degrees soon enough particularly when running the AC. Winter time, even here in N. Florida it's another story.

As for the smoke. My original CRD, pre-dump truck encounter, with a good tstat smoked on hard throttle about like a mosquito fogging truck. My currect CRD with good tstat but without GDE EcoTune smoked on hard throttle but did not do so with or without a good tstat post GDE EcoTune.

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Sold to LOST member my 05 Ltd, GDE Stg II turbo + TCM tune, SunCoast TC w. Transgo kit, Steiger window regulators, Samcos, Fumoto valve, 2nd gen filter head with Lub. Spec. bleeder, Hayden clutch & 11 blade fan, inverted spare, P-1 battery, BF Goodrich Long Trail TAs, Etecno1 glow plugs, timing belt at 50K miles/8 yrs