Had new thermostat installed a year ago.andit was better. I just drove half an hour in city traffic and engine was still not up to temp.I called dealer and was told these engines just take along time to warm up.I think thermostat is faulty again but they do not want to repace it
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No one ever said new means good. Try another thermostat. Make sure it is the recommended temp for the vehicle. I would spend the extra money to buy a dealer thermostat. What controls temp is restriction of flow thru the system until a set temperature is reached and the thermostat opens. Has to be a thermostat.
First question is what constitutes "overheating". Since the car has been parked for years, the thermostat could be sticking closed. The cooling system could have air pockets and need to be bled. The water pump may be corroded inside and not pumping enough volume. If the gauge goes above half way, the fans should start up. But half way should be more or less normal, not hot yet. I would look at flow problems first, beginning with removing the thermostat and driving it without one for a few days. Also check and see if there is a process to bleed the cooling system of air.
IT IS NORMAL FOR A VEHICLE TO HEAT UP WHEN THE A/C IS ON ESPECIALLY IN HOT CONDITIONS IF THE VEHICLE IS NOT OVERHEATING THEN THIS IS NORMAL IF YOU WANT YOU CAN ADD A HEAVY DUTY OR HIGHER GRADIENT THERMOSTAT TO BETTER REGULATE THE GUAGE
Hope this would be of help to anyone facing judder or sudden vibration (in quick succession) whenever you accellerate (pick up):
Bought my Honda City/ Fit Aria Year 2005 Vtec brand new and drove for 7 years; I experienced the above said problem in 2010, changed a set of 4 brand new original Honda (Made in Thailand) plug coils (please refer attached picture) and the problem came back after just 18 months. Again I had them replaced but this time I bought used ones from "half-cuts" car yard (those junkyards that deal with half cut cars like half Front part & half Rear part of any cars) because those half cut Honda City/Fit Aria's engines are from Japan and the coils that I salvaged are of BETTER Longer Lasting Quality !
From where I came from its Quite Expensive when I replaced the brand new Thai-made coils....almost USD300.00 inclusive labor but those USED ones only set me back by less than USD115.00 all in. I-DSI owners have to fork-out DOUBLE due to 8 spark plugs in their engines !!
HaPPy MoTORing & LooK aT tHe BriGht siDes alWaYS..!!! ......Billy
YES when its frosty you should start the engine at least 3 to 4 minutes before driving as,, as you drive all you are doing is driving towards the cold air and the radiator dosent get a chance to get warm so the temp will never reach its 90 so warm it up first and when the heaters warm or hot then so you will be...
AS you work better when warmer (yes) so dose your car
Don't run the car without a thermostat. It helps the car to reach operating temps quickly. also helps burn off blow by gasses by keeping the temps up and steady. check your radiator level once driving a few miles. Their may have been some air pockets that purged and need to be replaced with additional fluid.
I had this exact same problem -- for about a year and a half! Replaced thermostat, replaced sensor twice, replaced overflow tank, replaced radiator cap, placed a grounding kit on the car in case the problem was electrical ... and was ABOUT to replace thermostat again and then the water pump when a new mechanic suggested we bleed air out of the cooling system. The heater core was PACKED with air, as was the upper hose valve area. Previous mechanic had been using a pressurized fill device to bleed the system and this had just been backing air into the heater core. There are two valves under the hood for bleeding air -- one on the heater core and one on the upper hose. It only takes a few minutes to fix this!