Question about Suzuki Aerio SX

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Overheating. I have a suzuki aerio 2004 sx . I had to replace a water pump. when i did it wouldn't go. I took it to a repair shop because my mechanic told me i probably cracked the head. When the repair shop looked they said i needed a new engine. we got another engine (not new but redone). the repair shop said that it still was overheating and that it probably needed to go to the dealer. I took it to the dealer and they said that a throttle sensor was needed to be replaced. we did that. when i drove the car home (not more than 2 miles) the car hot light came on. So I called my insurance co (they had done some work on the cooling system. they said that readiator was ok and then i brought it back home. My mechanic took the radiator apart and flushed it. It's not the radiator. what could be causing this problem. the car overheat light comes on but the radiator is not hot. Is is a sensor or what. I really dont want to take it back to the company that did the engine. Because I have talked to them and they said its under warranty and that they would have diagnose the problem for 92.50. I have already spent over 3500.00. Could you help me please

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Try replacing the ect sensor. If the ect sensor is faulty it will cause the light to read faulty and it also tells your fans when to come on. I own a 2004 suzuki aerio and am a mechanic so I have been through this and the ect sensor fixed my suzuki.

Posted on Feb 17, 2013

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Put your heater on and see if hot air comes out if not the heater core is probably clogged. you could get them to change it and its costly or bypass the heater core and just connect your coolant lines together which will mean no hot air. make sure you drain the coolant first. Or try to force flush the heater core to get it unclogged then after all that put coolant in. If thats no it, run a pressure test on your radiator cap and see if it falls between the proper specifications for a good cap. Right now my suzuki too is overheating and I'm gonna try and bypass the heater core.

Posted on Jul 16, 2011

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Components on diagram:
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  • clsk2003aeri022.gifFuel System Components Diagram for 2003 Suzuki Aerio SX 2.0 L4 GAS
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