Bubbling or Gurgling Sound from Engine
Noticed it for the first time tonight when I pulled it into the driveway. The sound continued for a good 3 to 5 minutes after I shut if off and seemed to come from the engine. The engine was definitely hot from some in town driving on a very warm night with the A/C blasting. The temp guage measured where it always does, around 210ish. I checked for leaking around the radiator and didn't see anything. No other complaints in terms of power or performance. I'm a new Jeep owner (just bought my 2000 Sahara a few weeks ago) so I'm slowly learning what is and isn't typical on a Jeep. Can any other Jeep owners let me know if they've experienced something similar and if it's normal.
The sound is coolant boiling at hot spots in the cooling system. It can be caused by low cooling system pressure or overheating. When the engine is shut off hot, the hoses should be hard for a little while, if they are not, you have low pressure.
Get a new radiator cap from Napa or similar. 18 lbs is the factory rating. They are really cheap. You might also have some air trapped in the system. To burp the system, start the Jeep cold with the radiator cap off and let it get up to full operating temp with the heat on high. Then put the new cap on and you shouldn't have anymore gurgling.
2001 White TJ Sport
2013 Black JKU Rubicon 10A
Originally Posted by Knuckelhead View Post
^that is your trademark sire
2013 JKU Sahara
Charlotte, NC / Southport, NC
That was my thought. I hear it draining back into the pain everynight when I get home and it's quiet in the garage.
'00 TJ Sahara (RC 4" LA kit)
'06 Grand Cherokee Limited
'07 Ram 1500 quad cab
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Originally Posted by danica789 View Post
When the system is hot it expands to the overflow and when it cools it pulls from the overflow, if the overflow is empty or near empty, it's pulling in air.
2000 XJ Cherokee
1964 Ford Fairlane 500
|coolant , gurgling , radiator cap|
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