Barely getting any heat
Drain radiator of antifreeze then add some caustic soda about 200 grms dissolved in a bucket of warm water ,pour this into the rad top up with water and leave engine on idle for half hour ,drain -flush and run engine and see if its any warmer ,if it is the drain water again and give a good flush then refill system with 50% antifreeze
SOURCE: 2004 volkswagen passat v6 no heat
Do you notice that the engine coolant temperature gauge stays on the lower part of the scale as well? If so, it's likely that your thermostat is stuck open - this prevents the coolant from staying in the block long enough to absorb heat that is used to heat the climate-controlled air. I'm not positive on the 3.0 in your car, but the 2.8 V6 in my Audi A4 requires tremendous disassembly in order to change the thermostat. I believe the 3.0 is the same - the labor involved is only slightly less than that required to do a timing belt change (which, if you change the thermostat, since you're already all the way in there, you may as well do the t-belt service as well so you don't have to pay for all that labor again any sooner than necessary).
SOURCE: 2001 Audi A4 2.8 no or little heat
there is a valvve that lets the coolant thru the heater core when heat is selcted then when it is off it goes thru thur the return instead of the heater core i bet your car is running a little off if it is the vavle works of a vacuum line and the vavle has a crack in it
SOURCE: No heat. Temp gauge barely moves, but hoses to/from core are hot
Did you run engine from cold, with heater (not defrost) on , rad cap off & wait for rad fan to come on 2 or 3 times before you put rad cap back on? Rev engine slightly and hold it there for 30sec. to 1 min. every once in a while while doing this to aid in increasing flow & remove air locks. If both hoses in & out are hot to touch, then you should be getting heat, and I would start looking at blend/air door etc on heater to make sure it's going to it's proper position.
SOURCE: 2006 pontiac grand prix vary little or no heat
Are you sure you got all the air out of the cooling system? Air pockets are very common problem when you do any work to the cooling system. An air pocket will do what you discribe.
783 views
Usually answered in minutes!
×