car is heating up and temperature gauge is not showing

2008 SUZUKI ALTO
140,000 MILES • 1.0L • 4 CYL • FWD • MANUAL
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ALILION12
  • MEMBER
  • 19 POSTS
hi sir my car coolant is heating up. i have checked there are no leeks in its undercarriage then somebody told me that it may be due to radiator cap seal because i have not found any leak in it, but can you tell me please what may cause heating it up? can it it be gasket or anything else? it happens twice in one day because some days ago my brother was learning on it how to drive in back roads and continues used first and second car because the road was only where we could go up to forty kph. so please kindly tell what problem you think is with car engine it is boiling water from radiator well waiting for reply. thanks indeed.
Jan 23, 2017 at 10:00 AM
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LOU P
  • ASE Certified Mechanic
  • 118 POSTS
  • ASE Certified Mechanic
Hello, if you are not losing coolant and the temperature climbs really fast then you should replace the radiator cap. if the car is losing coolant and getting up to temperature fast you need to have the system pressure tested to see if the head gasket is the issue or radiator clogging or water pump failure. hope this helps. Lou.
Jan 23, 2017 at 10:04 AM
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