Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > 6.2L V8
Sign in using an external account
Register Forgot Password?


6.2L V8 Discuss the 6.2L V8

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 03-03-2014, 04:54 PM
JimRay's Avatar
JimRay JimRay is offline
Junior User
 
Join Date: Aug 2011
Posts: 78
JimRay is starting off with a positive reputation.
Listen....what the hay is that noise?

Ok, I've heard this a couple of times and I gotta ask. 2014 SD 6.2L gas with the key just inserted into the ignition switch (not turned either direction), I hear a high pitched hum/vibration coming from somewhere under/near the engine. Almost sounds like a fuel pump running dry. Again, not the fuel pump as I cam hear it if I rotate the key.

Maybe a relay coil? Sounds for 3 to 4 minutes and stops and doesn't do it every time.

Thoughts?
__________________

Sit Down, Shut Up, and Hold MY Beer
Reply With Quote
  #2  
Old 03-03-2014, 06:18 PM
saratoga2011's Avatar
saratoga2011 saratoga2011 is offline
Junior User
 
Join Date: Nov 2010
Posts: 87
saratoga2011 is starting off with a positive reputation.
My $$ says stepper motor cycling the throttle plate to learn/set its zero position.
Reply With Quote
  #3  
Old 03-03-2014, 08:33 PM
ATP Pilot's Avatar
ATP Pilot ATP Pilot is offline
Senior User
 
Join Date: Mar 2013
Posts: 215
ATP Pilot is starting off with a positive reputation.
I hear it also and have no clue
__________________
2013 F250 XLT 6.2 CC 3.73 2wd
-ScanGauge

2006 KZ Frontier 2303p-f, 6000 lbs loaded
Louisiana
Reply With Quote
  #4  
Old 03-04-2014, 01:25 AM
onlydjmac's Avatar
onlydjmac onlydjmac is offline
Freshman User
 
Join Date: Jan 2014
Posts: 27
onlydjmac is starting off with a positive reputation.
I read a post a few weeks ago about a noise with truck off after hitting the brakes and thread said it was a vaccuum pump for the brake system.
__________________
2011 F250 Crew Cab XLT 6.2L 4x4
Eagle Alloy Wheels Series 063 Black 20" - Nitto Trail Grappler M/T 295/65
Fox Racing Shox - MagnaFlow 12259 Muffler

Reply With Quote
  #5  
Old 03-08-2014, 11:28 PM
RZAR's Avatar
RZAR RZAR is offline
Senior User
 
Join Date: Oct 2010
Location: California
Posts: 162
RZAR is gaining momentum as a positive member of FTE.
Its the fuel pump. Basically the fuel runs for a second to prime/build up pressure in the system before you start.
__________________

2011 F350 4x4 Regular cab 6.2 4.30
Reply With Quote
  #6  
Old 03-17-2014, 09:12 AM
troverman's Avatar
troverman troverman is offline
Elder User
 
Join Date: Apr 2013
Posts: 502
troverman is starting off with a positive reputation.
Its not the fuel pump. I have wondered about this noise as well. First of all, its coming from under the hood! Plus, the fuel pump prime only runs for a few seconds, not 5 minutes. It usually happens to me if I put the key on to the first position (ignition off) so I can run the radio with the doors open. There is a high-pitched but quiet hum coming from under the hood, maybe on the driver's side. It will last for 5 minutes or so, maybe more. I haven't really, really tried to figure it out, but it baffles me. These trucks are not diesel, so I doubt they have a vacuum pump for brakes. I'm just surprised whatever is running needs to run when the ignition position is not selected.
__________________
2015 Ford F-350 Lariat Crew Cab 4x4 6.2L V8 (current)
2012 Ford F-250 XLT Crew Cab 4x4 6.2L V8 (traded)
1999 Harley-Davidson Road King Classic, 88ci EFI Stage 2
Reply With Quote
  #7  
Old 06-11-2014, 06:40 PM
-brent's Avatar
-brent -brent is offline
Freshman User
 
Join Date: Jul 2013
Location: Idaho
Posts: 26
-brent is starting off with a positive reputation.
same here, still wondering...
__________________
2013 F250 XLT 4X4, 18" x 9.5 rims, Cooper 275/70R18, tint, Flowmaster 50, sub, Lund tonneau cover,
Reply With Quote
Old 06-11-2014, 06:40 PM
 
 
 
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Pump, 89 F250, 7.5 erica 1987 - 1996 F150 & Larger F-Series Trucks 2 08-02-2014 08:16 AM
When A Fuel Pump Goes Out Does.... FlyCool5.0 1987 - 1996 F150 & Larger F-Series Trucks 8 05-11-2010 12:55 AM
Fuel Pressure problem or not? bigred66 1978 - 1996 Big Bronco 6 10-05-2007 01:16 PM
92 Ex fuel pump kclyki02 Explorer, Sport Trac, Mountaineer & Aviator 4 07-21-2005 06:13 AM
fuel pump not working? jon_boy 1987 - 1996 F150 & Larger F-Series Trucks 5 08-19-2004 08:44 AM


Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > 6.2L V8

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump


Participate In The Forums

Create new posts and participate in discussions. It's free!

Sign Up »





All times are GMT -5. The time now is 04:37 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup