2004 Honda Civic water boiling noise....

2004 HONDA CIVIC
1.6L • 4 CYL • 2WD • AUTOMATIC
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AHMER AMMAR
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  • 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 10:19 AM
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MHPAUTOS
  • ✓ASE Certified Mechanic
  • 31,937 POSTS
  • ASE Certified Mechanic
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 8:34 PM
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