So I was driving home from work today and after about 20 mins in 110 deg weather on the freeway I got off at my exit and it started making an odd gurguling sound when accelerating thru 3500- 5000 rpms(sounds like my friends 300z with exhaust that cant be good) and it only does this under a load.still idles great and runs good but im to scared to take it over 4500 now.Any ideas on what went wrong?

 

coolant?

 

sounds like air in the coolant lines, may need to be burped. Check your coolant. Did any lights come on?

 

No check engine light or any other lights, and it was at normal running temps, but ill have to check that out now that it cool enough. Thanx for the feedback.

 

Just checked the coolant level and its fine . I guess the could be air in the lines but how would that happen with out the coolant level getting too low.I have no leaks either. Im going to flush the system tomorrow to be safe hopefully it fixes it but I dont see how air in the line can make that type of noise