This is the only vehicle I've ever had that would get an air lock in it. Of course I've only been driving since 1950.

 

i checked all the freeze plugs,thermostat housing,block drain plug,lower radiator hose,upper hose,both heater hoses,and all along the edges of the radiator. still no leaks found. my coolant level has not gone down either. i use a Mag Lite with the halogen bulb upgrade an this also works very well to spot coolant coolant leaks. if i;m not mistaken,to replace the heater core in the Dodge Ram i will need to remove the dashboard and the heater box and possibly open the A/C sytem.can anyone confirm or deny this info?

 

was your heater not blowing as hot of air when it did this? Mine doesnt but it has also been 20 below the last couple weeks.

 

mine has been making that same noise for about three years now, only thing i can figure is that there is an air pocket like you have mentioned

 

it was doing this a few weeks before i performed the maintenance and it seemed to be blowing good warm air.it doesnt seem to be as warm now and the temp gauge usually doesnt get as high as it used to.once in a while it does but not usually.

 

To change out the heater core you don't have to remove the dash or the A/C.

You do however have to loosen the dash up and pull it out.

It is kinda a PITA to get to, but altogether I didn't think it was too bad of a job to do. I have changed worse heater cores!

 

thats good to know! i'm more of a Ford man but with keen eye for a good deal when it comes to Dodge...lol. Ford heater cores are a cake walk.the few people i've talked with about the Dodge said it was a 6-7 hour job easily an that usually the dash needs to come out and possibly the A/C would need to be disconnected. not having to do all this would be a big help even if ya hafta fight a lil bit getting the core out and in.

 

Apparently you haven't had the "pleasure" in changing one in a '99 Taurus. That was the worst one I have ever done.

For my truck I just loosened things up and then pryed a little to get the heater core to pop out of the top of the heater box. I think I ran a total of about 3-4 hrs. Maybe I was just lucky!

 

lol...i mostly did them in Ford trucks. a few Tempo's mixed in but majority were Ford trucks. i will definitely try the loosin things up method first,mainly cuz thats just my nature...lmao.

 

with my truck.Lisle cooling sytem funnel.Should be issued with every dodge ram.I never had heat and listened to swoosh every morning I started my truck.Drove me nuts.After using the funnel correctly I got all the air out of my system and nice hot heat and no swoosh.Good on ya.