Suzuki swift 1litre 2000 plate, heater not working. Not sure if thermostat or heat matrix or something worse. Is this a common problem? Will it cost much to fix? Thanks
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However, some drivers have also experienced some issues with the model. ... Common problems with the Suzuki Swift Clutch slipping. Handbrake problems. Loss of power. Dashboard rattling.
Okay, I am not sure. On some Barina's, if you follow the top radiator hose, the thermostat is at the end of it at the engine maybe with a plastic housing (which can crack). This was sold also as a Suzuki Swift. I can't promise anything about the links below but Here is an interesting video:
Was the heater working ok before you fitted the new thermostat?
If no, you probably have a blocked heater matrix. That means you have to either try flushing the coolant system to remove the blockage .. or.. replace the heater matrix, which isn't an easy task.
If the heater was working ok before you changed the thermostat then it's likely you still have air in the system.
Set the heater controls to hot, remove the radiator cap/coolant bottle cap and start the engine. Let it tickover and warm up. Hopefully any trapped air will be purged from the cooling system.
Are you sure that the thermostat is okay? Thermostats have a small valve in that allows air to pass through. If your thermostat is mounted like a clock ..i.e .. the face looking out - the air valve must be at the top.
water pump, air lock , blocked heater matrix , three to get you started does the engine over heat, if not then not likely to be the water pump, has the coolant level dropped, if so top up and bleed and open and close temp control for heater at same time , need a helper , do this for ten minutes so the engine is at a good temp ,making sure coolant is topped up, if after all this still no heat i'd suggest having the heater matrix cleaned through or even replaced
Please check the heater matrix valve for operation. This is located either next to the heater matrix under the dash or within the engine bay, close to the bulkhead on most models.
try replacing thermostat and do a coolant flush, heater matrix behind dash is prone to blockage or leakeage ( with leakage usually footwells are always damp ) before you replace the coolant after flush, fill and drain with water a couple of times, should sort it and it easier than replacing heater matrix. if heater has not been working for a while, as in 12 / 18 months matrix replacement might be only option, but spending a couple of quid on flush is worth a try first
most cars cabin filters if equiped will be behind the glove box,pull glove box out,look near heater box for a small cover plate the width of filter,open and replace,close back up reinstall glove box.
the thermostat may be stuck open, not allowing the the water in the radiator to warm up, or you may have a bad exchange on the dash that won't allow you to turn it from cold to hot.the resevoir is called an overflow resevoir.when the coolant heats up it expands and flows into there, when it cools back down it uses the coolant from the resevoir.
this is quite a common problem on some of the older rovers (especially the metro). gunk n deposits over time slowly block up the heater matrix and reduce the flow of water through it this will reduce the heat coming out. however there maybe another reason
a few things to check first, start the car and let it idle. once its running for a while, make sure the temperature on the engine gets to its normal place then try the heaters see if there is any change in there heating. if there is no heat at all at this point its possible either the heater matrix behind the dashboard has blocked up or the regulator valve controlling the flow of warm water into the heaters has broken.
check the drivers and passengers footwells if there wet to the touch, (not slightly damp) its a strong possibility that the heater matrix has broken or is leaking and thus not warming up like normal (this will need to be fixed ASAP as it will eventually drain all your engines coolant).
Suzuki thermostats, more often than not, tend to fail OPEN when they have been overheated - which is a good thing! If they failed shut, you would really cook the motor. Change the thermostat. Also, find the cause of the initial lack of coolant.
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