Heater core

[R***A**N**G**E***R]

This does sound like a nightmare to do.

 

[ranger_runner]

it could be the blend door check this out http://www.therangerstation.com/Magazine/Summer2009/blend-door.htm it takes the same way to get at it as the heater core but the parts are cheaper, and its almost never the heater core cause the only way the heater core gos is if its gets junk stuck in it or even less likely blows cause all the heater core is a small radiator so not much to brake

 

[fastpakr]

it could be the blend door check this out http://www.therangerstation.com/Magazine/Summer2009/blend-door.htm it takes the same way to get at it as the heater core but the parts are cheaper, and its almost never the heater core cause the only way the heater core gos is if its gets junk stuck in it or even less likely blows cause all the heater core is a small radiator so not much to brake

I've had to replace the heater core in three of the five RBV's I've owned to date (because they blew, not because they clogged).

 

[ranger_runner]

I've had to replace the heater core in three of the five RBV's I've owned to date (because they blew, not because they clogged).

thats bad luck

 

[fastpakr]

No question. My point, though, is that it's not nearly as uncommon as you seem to think.

 

[Mark_88]

Just bypass the heater core and run them hoses together under the hood...it might be a bit chilly in some areas, like your gonads, but it will save you hours of work and frustration...

 

[keddano]

If the heater core is plugged(As mine just was on a '94),I just clamped of the hoses with vise grips(to save losing coolant),Disconnected them and took the hose and flushed water back and forth thru each side.

Flushing into the outlet side will remove the most sediment.It took a good 10 minutes of back and forth to open it up so totally clear water would come out.Alot of times they will load up over the years(almost like a filter).

If it still is loaded up,you may try running some radiator flush thru it first to break it up some.

I would try that before yanking the core completely out.

 

[R***A**N**G**E***R]

If the heater core is plugged(As mine just was on a '94),I just clamped of the hoses with vise grips(to save losing coolant),Disconnected them and took the hose and flushed water back and forth thru each side.

Flushing into the outlet side will remove the most sediment.It took a good 10 minutes of back and forth to open it up so totally clear water would come out.Alot of times they will load up over the years(almost like a filter).

If it still is loaded up,you may try running some radiator flush thru it first to break it up some.

I would try that before yanking the core completely out.

Ok so I disconnected BOTH hoses going to the heat core on the firewall then I took my garden hose and turned the nozzle to STREAM then I held it up flush with the inlet pipe and turned it on full blast and BLAMMMMMMMMM a bunch of crap came out the outlet pipe next to it, it took about 30 seconds of high pressure and just holding the hose to the pipe.

Now I have my HEAT back wayyyyyyyyyyyyy hot and just in time to since I have been driving around with BARLEY luke warm air coming out.

Problem solved. It was simply a completely plugged heater core and NOT bad.