2004 Honda Civic water boiling noise....

2004 HONDA CIVIC
1.6L • 4 CYL • 2WD • AUTOMATIC
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AHMER AMMAR
  • MEMBER
  • 23 POSTS
Hi! my civic is on CNG and petrol both the problem i am going to tell is only while the car is on CNG when the rpm of car is below 2 so a weird sound comes it sounds like bloop bloop like water is boiling n the temp needle is bit raised now please elaborate what is it??
May 21, 2014 at 3:19 AM
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MHPAUTOS
  • ✓Experienced Mechanic
  • 31,937 POSTS
Are you getting low on coolant, it sounds as if it is boiling in the block, check thermostat, blocked radiator and external coolant leaks.
May 23, 2014 at 1:34 PM
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