I filled the res. to the full mark when I replaced the thermostat, then topped it of after I drove around to make sure it was full. Today I see it's 1" above the low mark after about 11 days since the last fill. Don't see any smoke during idle first thing or after it's warmed up. Temp gauge holds steady, heater blows hot, w/ no temp fluctuation. I don't see any leaks around the water pump, along w/ no puddles under the truck. I figured it used about a gal. in the time frame. Last time I had it in to have it looked at was for an injector problem and they found an overboost condition. Had something like 50lbs recorded in the ECM. Anyway, I hope I didn't weaken the head gasket, or stretch head bolts, which I'm sure I can re-torque, maybe? So where do you suppose it can be going? -

wildbill's Sig:

I Drive An 06 Dodge Ram 2500

Powered By a 5.9 Cummins

It Has Some Parts But Could Use More

96,000 Miles

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was the radiator full when you topped of the res?? -

stkdram55's Sig:

Just an Inline 6 Cylinder

Only 2 defining forces have ever offered to die for you.....Jesus Christ and the American Soldier..
One died for your soul, the other for your freedom.

Yep! I even went as far as leaving the cap off and started it while cold. Never seen any bubbles or coolant run over. Maybe it is the water pump and it's real hard to see the leak. FIIK!!! -

The 06's were prone to leak out of the rubber connectors on the passenger side of the block. I'm not sure it would actually pouddle up though. You might want to crawl under your truck and look at the block near the wastegate of your turbo. There will be two hard lines that have rubber connectors on them. Check to see if there are signs of leaking. Other than that the only other leaks I know that were common was the overflow tube as it leaves the filer neck. The hose leaks around the nipple. I ziptied mine and it hasn't leaked since. I know guys boosting these CR's into the 60's all the time and not heard of one gasket comng loose. Too much drive pressure, injector timing and things like water/meth and NOS kill headgaskets. Boost alone is not so hard on gaskets. Especially at 50 PSI or less. -

staarma's Sig:

2004.5 2500 White SLT QCSB 4X4 6SPD 3.73 Edge Hot J/A w/ EZ, Smarty Jr. POD, 5" exhaust w/6" tip, AFE Megacannon Stg 2, HTT 62/71/13ss, ATS In/Ex manifolds, Di Pricol rail pressure, Diesel Dynamics Big Line Kit, FASS HPFP, Di Pricol boost and FP gauges w/ Geno's filter lid, CON Fe, Joe Hellman IC, condenser guard, Fumoto valve, PAC Brake, TDK front bumper

what has your oil level been like i know 06 diesel has a head gasket that is allowing antifreeze to leak into his oil. i would get a oil analysis and see if the potassium level is high -

skynyrd's Sig:

Leonard
2004.5 bright silver reg cab 2500 600 CTD "Stock but it smokes a little and goes fast"
1979 vw rabbit diesel (rebuild in process)

Stays just under the full mark. One gal over 11 days, that's a pretty small leak. -

I would leave it at that mark, put a small mark on the tank and see if it gets lower over the next week. Also get some dye and put it in the antifreeze. This way you can find your leak easier. I would also recomend a oil analysis just to be on the safe side. That is how I found out about my HG being blown. I smelled antifreeze for a while before noticing the oil level being high, then the sample confirmed this. I am pulling my head tomorrow to confirm the HG failure, hopefully this will be the first and last time my head comes off. -

06 DIESEL's Sig:

My rig - 06 Dodge Ram 2500 Crew Long 4x4 SLT CTD 6 speed

A little here, a little there, now it smokes

Good time for studs. Good luck. -

I had the same problem with my 06. I found exactly what staarma described. I bought my truck used with 25k and wondered why there was a line marked on the resevoir. I found the leak on the rubber hose on the passenger side of the block, tightened the clamps, and have had no more problem. Never saw any drops on the ground, noticed any smell, etc. Also had the leak on the overflow hose, just clamped it with a ty-rap too. -

MegaMan's Sig:

06 Ram 2500 Mega Cab 5.9L, 5" turbo back, Isspro, Afe, train horns
06 Chrysler 300C
94 Ram 2500 V10 (sold)
92 Ram 250 Diesel 2wd 5 speed