I would suspect that the heater valve is not working. Locate the in line valve switch on the hot water supply line that usually sits just behind the radiator. Have someone move the cold to hot slide switch inside at the controls and see if the valve moves "opens". If not, the vacuum line that goes to it may have come off. You can manually open the valve too. I believe you have air trapped in the system. Try this: Elevate the front of the van such as on car ramps so that the radiator is sky high over the rest of the vehicle. Remove the rad cap, run the engine with cap off for 30 minutes and continue adding coolant as the air purges. This may take a while but it will work.Because this vehicle is somewhat high profile in the relation of heater core to rad cap this is necessary. I hope this helps you. Mark
had the same problem with a sibring,took to the garage,they replaced the thermostat and gasket and found a hairline crack in the thermostat housing they replaced the housing and everything was fine then
If your radiator isnt leaking and car is having a over heating problem and coolant spewing out. Chances are your thermostat needs replaced. possible the radiator needs to be flushed. But more likley its thermostat
A faulty thermostat in a 2001 BMW 325CI can cause a coolant leak. The coolant may be leaking out a crack in the thermostat or through a warped edge. In some cases the problem may be just a bad gasket and not actually a problem with the thermostat at all.
It could possibly be a clogged heater core
Could be low on coolant. If the coolant continues to "disappear", you may have a head gasket problem.
im having the same problem with my 1994 I've replaced the heater core,thermostat,radiator,i checked the coolant, and it's not over heating or nothing and still no heat lol
possible head gasket problem this engine was famous for it.
Could be low on coolant or a faulty thermostat.
What other symptoms besides leaking antifreeze? Where do you see the anti-freeze leaking?
Check your cooling fans in front of the radiator. It could be a relay or fuse to your high speed fan motor. Also, check your coolant temp sensor, antifreeze level, and or thermostat again.
BDTC P0128 Engine Coolant Temperature (ECT) Below Thermostat Regulating Temperature " I have seen this several times this week alone. All three times I replaced the coolant temp sensor and it fixed the customers problem. john f.
Ok, if you follow the main coolant hose from the radiator to the engine block you will see that before the coolant actually enters the engine block it goes through a plastic housing with two electrical plugs this is where the thermostat is located. One of the two plugs controls the thermostat (if not both). I had a problem with my cooling system ('94 VW Jetta GL III 2.0L) as well and had to find it on my own. I replaced the whole housing for approximately $35 and it fixed my problem.