Report: Loud howling noise from air intake
Ford Explorer Problem
Engines Affected: 4.0L V6, 4.0L V6 SOHC, 4.6L V8, 5.0L V8
Average Mileage: 148,454 mi (73,000 mi - 205,500 mi)
Both V6 and V8 ford engines from various years sometimes experience a very loud low pitched moan or howl that sounds as if it is coming from the air intake area..
The culprit is the Idle Air Control Valve. (I.A.C.).
It is possible to remove and clean the IAC with the proper care but it is not advised to do so...Although it may work for a short time, it will eventually fail again and possibly force you to call a towing service when you least expect it..
Price for the IAC varies from $70 to $120 for V8 and $30 to $80 for V6 models. This repair takes me less than ten minutes...
Hopes this helps...I have replaced the IAC for 6 friends and family members who have also had this problem over the years..
loud howing noise. will stop if I hit the gas padel. The noise will also stop if fan is turned on.
Loud howling noise but doesn't start til the vehicle has been warmed up and is almost instant during the summer. Nothing alleviates the noise and it is extremely annoying. But there has been no decrease in performance due to it.
Visitor, 1997 Ford Explorer, 4.0L V6
Intake Howling. Replaced IAC, TPS, MAF, and howling comes and goes. No engine light. Installed clamps on air intake hoses. Car also downshifts at higher speeds causing the engine to rev high and upshifts back to proper gear.
Visitor, 2002 Ford Explorer, 4.0L V6, 73,000 mi
Same howling sound, replace IAC valve, did not help.
Visitor, 2002 Ford Explorer, 4.0L V6, 75,000 mi
I had ths howling/vacuum sound coming from me Explorer at high RPM, followed all required suggestions ie replacing ISC and MAS sensors,it did not work. It turned out to be the FAN CLUTCH, replaced it this weekend, problem solved. I dealt with issue for about 3 months until I finally figured it out. Good lock
Visitor, 1997 Ford Explorer, 5.0L V8
i have the same problem... also find out it can be the oil is low or the cooling is also low. When i change one of the other it doesnt do it until the oil needs change again
Visitor, 1997 Ford Explorer, 4.0L V6 SOHC
having the same problem. hoping someone comes up with a solution, lol. the noise drives me crazy.
Visitor, 1997 Ford Explorer, 4.0L V6 SOHC, 150,000 mi
I have the howling noise and changing the IAC did not fix it.
IAC didn't help solve my howl. Ive replaced everything and the howl remains.f