I am working on a friends Neon and he been having an issue with constant overheating even through he has replaced the thermostat, the radiator, water pump and related hoses. However, he is missing the cap to the coolant tank and his heater core hoses are blocked, both incoming and outgoing. Could the blocked hoses be causes it to over heat?
View 1 RepliesI have a 2010 GMC 3500 Savanah van with 6.0 motor. No heat in van. Engine operating temp is normal. Heater hose into core is hot. Hose coming out is barely warm. I am of course hoping for another explanation other then blocked heater core. The truck only has 45k miles. I am ready to backflush , but wondering if there can be any other explanation. A/C works normal.
View 1 RepliesI have an 01 Mercury Cougar Sport Coupe that we bought from a friend for not too much, just to use as a daily driver. It's got a lot of miles on it, but it still gets good mileage, which combined with the fact that we didn't pay much for it makes it an okay car for around town.
Here's the problem. I live in Wyoming where it's winter nine months out of the year, and the heater core is apparently blocked. I made it all through last winter with this problem, but now it's intolerable. The kids call the car "the Red Icicle". My mechanic diagnosed the problem as a blocked heater core and tells me the only solution is to replace it, which costs something like $500. I can't work on the car as everything is too jammed under the hood to get access to anything.
Do I really need to replace the heater core? The whole car isn't worth much. Is there something I can put in the cooling system that will unblock the core reliably?
I really need to know. Since the X has 2 heater cores, how do the hoses run that connect the two together? Do they run in parallel, or in a series?
View 5 RepliesI have a 2003 1.8t Jetta and I noticed my heater core is going bad (Common issue) so I smell G12 when I turn on my heat. But randomly and out of no where my car will start to over heat just a little. Never goes into the red though. Farthest it has ever been was about to the second mark past 190. It goes back down eventually and when I pop my hood it bubbles in the reserve a little and it does not do it again for about a few weeks or so. Could this be because of the heater core or might be a thermostat or bad coolant temp sensor?
View 1 RepliesTruck has recently developed a weird overheat issue. Ill try to give a s much background as possible:
I changed the heater core in the winter and that definitely cured the lack of interior heat issue the truck had since I got it. Blows hard and hot now. (I suspect I should also swap out the rear one too)
On occasional since then I have noticed the odd time a "gurgling sound" in the heater core area. Its not all the time but here and there.
Within the last 3 weeks or so I have gotten a check engine light. I've been a bit too busy to address it, and don't tend to drive very far (work and back) but have downloaded the comp and have a P0174 and P1299. Now just in the last 5 days I have noticed the temp gauge , which is normally firmly parked at about 1/3 in the zone has moved up to nearly the hot area. I can easily bring it back down by using full heat. I have cleared the codes and they haven't returned yet, but I'm suspicious of them non the less.
What can cause lean on only one bank? I have looked at the usual suspects and don't see any obvious leaks. Is it very common to have a intake gasket leak? what's the easiest way to check for that?
My rad appears in good shape although the AC condenser is pretty beat up. I'm definitely going to flush out the coolant, it looks good and used.
Plastic coupling between core and hose, is there a specialty to needed to remove from heater core?
View 1 RepliesI have a 2001 Lincoln Towncar with 122k on it. The heater went out this winter and I took it to a guy that replace the blower motor. The blower was not the problem. He then replaced the main control unit in the dash. That made the blower work on all speeds as I can hear it running. The problem is, there is NO air movement from any of the vents on any settings. When switched to def, vent, heat I can hear it switching but nothing happens and I have a complete lack of airflow. I looked for a filter on the firewall that may be blocked and it appears to be missing, or this car doesn't require one?
View 7 RepliesI drive a 2002 Ford Ranger and am wondering at what mileage should I change the heater and radiator hoses. The truck lives in Phoenix, AZ and is driven almost daily.
View 5 RepliesMy son's 98 Expedition has no heat. The radiator and overflow tank are full, there's no air in the system. The radiator hoses get nice and hot but the heater hoses stay cold. We can hear the flow through the vents change when we change the temp control so I'm sure the blend door works fine. Seems like the problem is that no hot coolant is making it to the heater core. So I'm wondering if there is a diverter valve somewhere that could be bad that's keeping the hot coolant away from the HC or if a clogged HC is the only thing that could cause this.
View 1 RepliesI've replaced my heater core and blend door in my 2000 and getting ready to button things up. Can I hook up the heater hoses after the plenum top is screwed on to keep the core from moving when pushing on hose connections?
View 1 RepliesOk I have a 97 f150 4.6L. My radiator has been bad for a while. With brown rust color. I replaced my radiator, thermostat, new upper and lower hoses. Everything runs great but I have no heat. I flushed everything including the heater core. Core is not leaking into cab, and both heater hoses are cold. FYI heat worked great until 5 days ago.
View 7 RepliesI've checked just about everything, coolant level is good, engine gets hot, heater control valves moves, blend air door moves, the heater hoses don't feel as hot as I think they should, but the gauge reads in the middle, I burped it thoroughly and still no heat , blower works i actually can switch the blend air door manually, but no change! what am i missing? t-stat was changed too. 2001 sport trac....
View 2 RepliesI'm feeling a bit embarrassed posting my delima, but I have a minor coolant leak which seams to be coming from where the heater hoses connect to the water pump and as well to the thermostat nuckle thingy. I have replaced all of the hose fittings with SS band clamps.
A couple of weeks ago I replaced the water pump, thermostat, alternator, rad hoses, belts, coolant sensor, PS tension pulley. The water pump is now tight and sealed. Since then the temperature gauge has been continually fluctuating from Normal to near Cold.
I was wondering if I should have placed some type of sealant compound where the heater hoses connect to the water pump and also to the thermostat nuckle thingy.
Initially, I thought it may be residual trapped air in the coolant system. But after a week, it became apparent that the heater hoses were leaking at the engine, and at the water pump, connections.
What puzzles and torments me is why is the temperature gauge fluctuating so widely up and down? This is totally weird.
I have a 76 f250/460 engine. I have replaced the hoses, belts, water pump, fan clutch, flowed the radiator and it still overheats.
View 4 RepliesI have changed the compressor for my lumina LTZ 2001... After that a noisy sound start to appear ... And cooling stopped after a while((around a week)) they told me to change the heater core. And I changed it.After that similar sound start to appear again ... And the cooling start to be reduced gradually ...and then no more cold air..The sound appears infront of the next to driver seat.
View 5 RepliesLast week I got a hole in my lower heater coolant line and I did a quick fix and added G12 to get the car home but I got to thinking, the way I'm using this car now, I'm not so sure I need the heater.
View 6 RepliesThe subjects say's it all, is there a DIY for bypassing the heater core? I already search i couldn't find it...
View 3 RepliesI may have to replace the heater core on my 1990 Celebrity. Done from under the hood, or inside the car, under the dash? How difficult is this?
View 8 RepliesI have a 2000 F-150 5.4L 4x4. I am currently deployed and my wife has the truck. Just yesterday she told me my heater core went out again the only way she knows this is its the 4th time in just over a year. What would cause a heater core to go out so many times in a short period? What should I have my wife do? I do not want to get rid of my truck and I wont be back for another few months.
View 2 Replies 2005 Ford E Series heater core is "always on"?
That is, coolant always circulate through the core, there is no "valve" that turns it on or off.
The HOT / COLD dial opens and closes a door (vacuum operated) that allow air to enter the heater core area?