PaHunter Posted June 2, 2018 Report Share Posted June 2, 2018 We took a trip to Alabama and one the way down the Volvo was blowing water out the overflow but was not overheating. Checked oil cap, no white flakes, checked oil, no coolant in it. Ideas ?? Chris . Sandpiper 379 FLOK, Volvo 2012 730. Link to comment Share on other sites More sharing options...
DesertMiner Posted June 2, 2018 Report Share Posted June 2, 2018 How much coolant did you use? Bad Coolant tank cap.... Air Compressor blow back.... EGR Coolant lines.... Head Gasket........ Link to comment Share on other sites More sharing options...
chief916 Posted June 2, 2018 Report Share Posted June 2, 2018 check for leaks in lines going back to bunk heater. did you shut off water to the bunk seein as how its summer? you might have a leak in a valve back in towards the bunk. Link to comment Share on other sites More sharing options...
Showme Posted June 2, 2018 Report Share Posted June 2, 2018 Year and make of engine? Volvo VNL / Missouri Titled RV Ved12 425HP Super 10 Spd 37ft KOA Fifth Wheel Jeep Rubicon Toad Link to comment Share on other sites More sharing options...
Brad & Jacolyn Posted June 3, 2018 Report Share Posted June 3, 2018 I was losing coolant at one time and it was hard to find because it only did it at about 1400 rpms. My 12 liter Volvo has a drain valve that looks like a faucet up high on the passenger side behind the turbo (that makes it hard to see). It has threads and the repair guy screwed a pipe plug into it and that stopped the leak. No problem in 8 years. Brad Brad and Jacolyn Tucker the Wonder dog and Brynn the Norfolk Terrier 2009 Smart "Joy" 2004 VNL630 "Vonda the Volvo" 2008 Hitch Hiker 35 CK Champagne Edition VED12 465 HP, Freedomline, 3.73 ratio, WB 218" Fulltiming and loving it. Link to comment Share on other sites More sharing options...
Parrformance Posted June 3, 2018 Report Share Posted June 3, 2018 On 6/1/2018 at 9:44 PM, chief916 said: did you shut off water to the bunk seein as how its summer? May I ask how this is done? 2006 Volvo VNL 780, " Arvey" Volvo D12, 465hp, 1650 ft/lbs tq., ultrashift 2003 Jeep Wrangler Rubicon 2010 Forest River Coachman Freedom Express 280RLS Jackalopee Link to comment Share on other sites More sharing options...
Hewhoknowslittle Posted June 3, 2018 Report Share Posted June 3, 2018 On 6/1/2018 at 8:04 PM, PaHunter said: We took a trip to Alabama and one the way down the Volvo was blowing water out the overflow but was not overheating. Checked oil cap, no white flakes, checked oil, no coolant in it. Ideas ?? I would change the radatior cap, cheep and might just do the trick. Roger Link to comment Share on other sites More sharing options...
PaHunter Posted June 4, 2018 Author Report Share Posted June 4, 2018 That was in our plans, hopefully it helps. Then considering having the thermostat changed. Chris . Sandpiper 379 FLOK, Volvo 2012 730. Link to comment Share on other sites More sharing options...
chief916 Posted June 4, 2018 Report Share Posted June 4, 2018 10 hours ago, Parrformance said: May I ask how this is done? Leastwise...I have four water valves on my truck.....but it's a 1997 and I am able to shut all the water to the aft sleeper but there is a valve between the motor and the aft bunk area that I found was leaking quite substantially. Once I shut the water valve off...I stopped losing coolant. Found the valve that was leaking... passenger side over the right fuel tank....replaced it and problem solved. Not sure if this applies to all Volvo's but it's just a swag....it worked on mine. Link to comment Share on other sites More sharing options...
PaHunter Posted June 4, 2018 Author Report Share Posted June 4, 2018 Ours is a D13, 2012. Chief will look for that, not sure what ours has on it, we have only owned it for about 2 months now. I am still learning.... Chris . Sandpiper 379 FLOK, Volvo 2012 730. Link to comment Share on other sites More sharing options...
PaHunter Posted June 5, 2018 Author Report Share Posted June 5, 2018 On 6/1/2018 at 9:15 PM, DesertMiner said: How much coolant did you use? Bad Coolant tank cap.... Air Compressor blow back.... EGR Coolant lines.... Head Gasket........ in 2000 miles of travel, just about 2 gallons. Most of it seemed to be splashed up on the inside of the hood, on the lower side of the heat pads when the hood is open. More was on the drivers side than passenger but was some on passenger side. Temps outside going down 85 to 90, lost just over a gallon of fluid then. Temps coming home, around 70 and raining, short of a gallon used to top off. Both times, had display up, max temp showing in display, about 205, most of the time around 190. Chris . Sandpiper 379 FLOK, Volvo 2012 730. Link to comment Share on other sites More sharing options...
VegasFlyer Posted June 5, 2018 Report Share Posted June 5, 2018 Have you looked around the seal of the water pump? Is there any signs of coolant on the fan blades? John Southern Nevada 2008 Volvo 780, D13, I-Shift 2017 Keystone Fuzion 420 Toyhauler 2017 Can-Am Maverick X3-RS Link to comment Share on other sites More sharing options...
jenandjon Posted June 5, 2018 Report Share Posted June 5, 2018 My Pete did that. If I filled it completely full it pushed out a good gallon or so. But then it was fine. I would just add half a gallon or so once a week or so when I was running hard. No leaks. I didn't know where it was going but I didn't really think too much of it. Until one day it just quit running. Turns out I had a cracked head. It was leaking coolant into the engine where it got burned and went out the exhaust. So If I filled the rad completely the cracked head let more pressure build in the system forcing out a gallon or so of coolant initially then it would start burning it. It never over heated on me. Hopefully yours is not that major. With a cold engine start your truck and let it run for a 30 seconds. Take the rad cap off. If you have pressure already that is a bad sign. That is what mine was doing. Farmer, Trucker, Equipment operator, Mechanic Quando omni flunkus moritati-When all else fails, play dead I'm a man, but I can change, if I have to, I guess. Link to comment Share on other sites More sharing options...
Ronbo Posted June 5, 2018 Report Share Posted June 5, 2018 Dont you have a hose that drains the coolant down low so it doesnt get on inside of hood? put a pressure gauge pn the tank and start it up. run at about 1500 rpms and watch the gauge. Ron C. 2013 Dynamax Trilogy 3850 D3 2000 Kenworth T2000 Optimus Prime Link to comment Share on other sites More sharing options...
Alie&Jim's Carrilite Posted June 5, 2018 Report Share Posted June 5, 2018 There was once a 5.9 Cummins that was pushing 60+psi of boost. I cracked a head gasket and the boost would overpressure the radiator system and blow coolant out of the overflow. Alie & Jim + 8 paws 2017 DRV Memphis BART- 1998 Volvo 610 Lil'ole 6cyl Cummins Link to comment Share on other sites More sharing options...
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