Any auto mechanics-heating question - Page 2

Mugen910 · 12-01-2010, 12:43 PM

Quote:

Originally Posted by forgop

So, my wife's van (2005 Dodge Grand Caravan) isn't heating when it warms up in the driveway. You can let it run for 30 minutes in the driveway and it won't remove the frost or anything, even though the temperature is high enough to begin warming from the engine. Once you start driving down the road, you notice after a minute or two, the cold air that was blowing is now as toasty as can be. Any suggestions why we're not heating while it's in park in the driveway but works fine once you get on the road?

This part sounds similar to what my brother when through with my previous car passed down. The problem ended up being that the fan to circulate the air was busted. Of course it worked when he was driving because the air being forced in was enough to make the fan propel and circulate the air around. It could be a fuse or you need a new fan. That's about all I can contribute as I know very little beyond an oil change and brake pads.

pektel · 12-01-2010, 02:15 PM

btw, I'd be interested to know what you find out.

BloodSpite · 12-01-2010, 02:21 PM

There is only one real way to fix this

RGD. · 12-01-2010, 03:23 PM

Hmmm - I actually have a similar problem in no heat unless I'm going above 25/30. So check this out -

The cause is this: The EGR cooler cracked and was replaced but an inline filtration wasn't done properly on removal allowing debris to enter the cooling system and help clog up the oil cooler which itself was most likely partially clogged with sand casting material that wasn't cleaned thoroughly during manufacturing. Since the coolant can't flow through the oil cooler then it can't properly cool the EGR cooler hence the cracking. In addition since it can't flow - it sits in the oil cooling passage ways until it super heats and vaporizes, blowing back into the degas bottle, puking all over the engine. As this happens there isn't enough coolant flow to properly produce enough heat for the cab. The fix is roughly $2600.

So check that out on yours and see if it solves it.

Just joking - only those of us lucky enough to own a Ford 6.0 Diesel motor get to have this much fun.

Ron

12-01-2010, 02:15 PM	#2
pektel I'm nuts for the place Join Date: Jul 2010 First Name: Peter Location: Grand Rapids, MN Posts: 4,320 Trading: (28)	Re: Any auto mechanics-heating question btw, I'd be interested to know what you find out. __________________ The problem is not the problem. The problem is your ATTITUDE about the problem.

12-01-2010, 02:21 PM	#3
BloodSpite He Who Dares...WINS! Join Date: Oct 2010 First Name: Joe Location: Southwest, Missouri Posts: 364 Trading: (1)	Re: Any auto mechanics-heating question There is only one real way to fix this

12-01-2010, 03:23 PM	#4
RGD. God Like Status Join Date: Oct 2008 First Name: Ron Location: Alexandria, Virginia Posts: 971 Trading: (1)	Re: Any auto mechanics-heating question Hmmm - I actually have a similar problem in no heat unless I'm going above 25/30. So check this out - The cause is this: The EGR cooler cracked and was replaced but an inline filtration wasn't done properly on removal allowing debris to enter the cooling system and help clog up the oil cooler which itself was most likely partially clogged with sand casting material that wasn't cleaned thoroughly during manufacturing. Since the coolant can't flow through the oil cooler then it can't properly cool the EGR cooler hence the cracking. In addition since it can't flow - it sits in the oil cooling passage ways until it super heats and vaporizes, blowing back into the degas bottle, puking all over the engine. As this happens there isn't enough coolant flow to properly produce enough heat for the cab. The fix is roughly $2600. So check that out on yours and see if it solves it. Just joking - only those of us lucky enough to own a Ford 6.0 Diesel motor get to have this much fun. Ron