Constant humming

6 posts 4 contributors 942 views

Member since May 2012
5 posts
Philadelphia, PA, USA

May 8, 2012 at 1:37 PM

Engine hums in the general area of the IAC. IAC, drive belt, idle pully, air filter, fuel filter all just replaced. The hum continues. Any thoughts?

wizzard1222

Member since Jan 2011
139 posts
Ballwin, MO, USA

May 8, 2012 at 3:50 PM

might have miss it...model....engine...years....?

Any OBD1 or 2 codes...?

Can you take an audio/video clip from a camera or smartphone....?

Could help w/more clues...

brokerdavelhrOP

Member since May 2012
5 posts
Philadelphia, PA, USA

May 8, 2012 at 3:55 PM

2000 Crown vic 4.6l v8 - CEL came on, but does not stay on - and everytime i take it to autozone to get it checked, they say the codes cannot be pulled because they say that the CEL is not currently on.... if i could get the codes pulled, it would def help. Will take a vid with my phone though and post it by this time tomorrow - THX!

jdmeaux

Member since Jan 2009
525 posts
Lafayette, LA, USA
1 vehicle in the registry

May 8, 2012 at 4:27 PM

If no codes are showing, then it's not a hard code YET. Did they reset / clear all codes to be safe? If not, it may do the same thing;flash on/off. Ford says if it flashes on & off, it could damage the emission system. Being it started after you changed the IAC, it could be in the IAC circuirt. You need to recheck this.

*******************
PROUD MEMBER of www.crownvic.net

It's just a SUPER-DUTY Mustang GT Sedan. 198K miles and still rolling HARD.

1997 Crown Victoria P71 SVT *** ex-US Marshall service (the CAR)
STOCK?? I bet it was modified.

13.26 @ 107.24 MPH 1/4 mi w/ me, tools, & full tank of 93 octane

I added CAI, NICHE 19 X 8.5 " wheels with 245/45ZR 19 rubbers, and completely rebuilt the front end with poly bushings, Kooks headers, 2 1/4inch exhaust, TCI 2200-2400 rpm Stall converter

.PLANS:: engine upgrade, 5.4L 2v stroker, rebuild interior in leather w/ buckets, thinking about turbos

cvpip71y2k

Member since Feb 2012
67 posts
st louis, MO, USA
1 vehicle in the registry

May 10, 2012 at 1:11 PM

Heater cores like to buzz alot. Are you having any idle trouble like shaking or rough idling?

brokerdavelhrOP

Member since May 2012
5 posts
Philadelphia, PA, USA

May 11, 2012 at 5:54 PM

Thanks JD - will be rechecking this weekend

Know the answer? Join free to reply — this community has answered Ford questions for 25 years, and threads like this one stay up to help the next owner. Join free