Tomfinn94 Posted January 18, 2017 Report Share Posted January 18, 2017 Hi guys me again Problem with my heaters this time. Recently my car is only blowing cold air unless I get it up to revs of 4k or more. Any ideas Thanka Quote Link to comment Share on other sites More sharing options...
cj1 Posted January 18, 2017 Report Share Posted January 18, 2017 Are you definitely sure it's related to only being 4k or above? Seems very odd...... Water would still be going in to heat the system up regardless of rpm. Quote Link to comment Share on other sites More sharing options...
Tomfinn94 Posted January 18, 2017 Author Report Share Posted January 18, 2017 100% I was driving it last night and this morning to make sure I was correct. Anything under 3,5/4k the heating will go ice cold Quote Link to comment Share on other sites More sharing options...
Pete Posted January 18, 2017 Report Share Posted January 18, 2017 I'd say possibly your waterpump is failing. Quote Link to comment Share on other sites More sharing options...
Daniel84 Posted January 18, 2017 Report Share Posted January 18, 2017 change your termostat, is open all the time!!!! Quote Link to comment Share on other sites More sharing options...
Sausage Posted January 18, 2017 Report Share Posted January 18, 2017 1 hour ago, Pete said: I'd say possibly your waterpump is failing. What he said. Take the hoses off and flush the matrix, block and radiator until clear and look for debris, dont forget the antifreeze when you top it up again. Quote Link to comment Share on other sites More sharing options...
Tomfinn94 Posted January 18, 2017 Author Report Share Posted January 18, 2017 Anyone know where thermostat is located on a 1.0 mpi Quote Link to comment Share on other sites More sharing options...
Tomfinn94 Posted January 18, 2017 Author Report Share Posted January 18, 2017 Sausage. So what just take water hoses off? And let run out? Quote Link to comment Share on other sites More sharing options...
Sausage Posted January 18, 2017 Report Share Posted January 18, 2017 Assuming you just dont have an air lock in the system, then draining it into a pan or something and looking for bits of water pump impeller seems like a a reasonable idea (as you have limited water flow in your heater at normal revs). If the coolant isnt too rusty and looks fresh you can stick it back in again. Flushing and reverse flushing the system (matrix, block, rad) with a hose pipe until clear should show if you had a partial blockage of the matrix. You may as well take the thermostat out at the same time as said above. I dont know where it is on the 1.0 though. Quote Link to comment Share on other sites More sharing options...
Tomfinn94 Posted January 18, 2017 Author Report Share Posted January 18, 2017 Starting to overheat now as well. Sits at 110 till I drive then goes back to 90 Quote Link to comment Share on other sites More sharing options...
Mobieus_uk Posted January 21, 2017 Report Share Posted January 21, 2017 probably your thermostat is messing you about, Car engines are not very efficent at heating water so poor in fact that you have to slow it down so the water can pick up heat so your heaters work and allowing the engine reach running temperatures, this is where the thermostat comes into play, stuck open and the engine runs cold and stuck closed the engine will run hot, its supposed to regulate the water flow some were inbetween but yours is a classic example of it getting stuck one way or the other if your water pump was failing you would have more more issues I think, from my experience water pumps are more likely to leak before they fail, some cars the water pump is driven by the cam belt so not easy to remove and check a blocked matrix will just effect the heater inside the car and has no effect on engine temperature as there is a bypass thermostats are cheap you have nothing to lose replacing it as a new one never hurts, sorry not seen you engine so cant really point at when it is but a good rulle in look around where all the radiator hoses connect to the engine Quote Link to comment Share on other sites More sharing options...
Tomfinn94 Posted January 22, 2017 Author Report Share Posted January 22, 2017 All done turned out to be thermostat Thanks guys Quote Link to comment Share on other sites More sharing options...
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