Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997 - 2003 F150
Sign in using an external account
Register Forgot Password?


1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 09-19-2011, 06:00 PM
Coppah37 Coppah37 is offline
New User
 
Join Date: Sep 2011
Posts: 2
Coppah37 is starting off with a positive reputation.
Possible engine problems 2001 5.4L

Hey i just bought a 2001 ford f150 7700 series truck a month ago or so. It has a 5.4L motor in it that seems to run pretty good. The truck only has 55K miles on it. I noticed when i bought it it had a slight knock in the motor but wanting the truck i figured it was probably nothing to worry about. Oil was clean and smelled good even though it was new. Now im hearing this knock pretty much only at idle. I can hear it more down in the wheel well more than up top under the hood. Weird thing is it goes away immediately when i touch the gas (1000 rpm or so). No check engine light, oil pressure is slightly above half on the stock gauge, and no seemingly problems with how it runs. Just kinda driving me crazy. If any one has had this similar problem please let me know what you think. thank you
Reply With Quote
  #2 (permalink)  
Old 09-19-2011, 08:18 PM
96f150's Avatar
96f150 96f150 is offline
Posting Guru
 
Join Date: Nov 2000
Location: In my House
Posts: 1,465
96f150 is starting off with a positive reputation.
a LOT of the 5.4 2 valve motors have that particular "noise". some people have had better luck with using an OEM motorcraft oil filter with the anti drainback valve in it. th knock supposedly also comes from the psiton skirt design being short si what i have heard. My 01 does it, the 4 2002 trucks at work do it, and they have pretty close to 200k on them.
Rich
__________________
Current
2001 F150 SuperCrew 4x4 XLT

Previous
2006 F150 4x4 Scab XLT
1996 F150 4x4 302 XL (miss her the most)
1997 F150 4x4 XLT
1994 Ranger 4x4 4.0L
1993 Ranger 4x2 3.0L
Reply With Quote
  #3 (permalink)  
Old 09-20-2011, 01:15 AM
phil6608's Avatar
phil6608 phil6608 is offline
Post Fiend
 
Join Date: Jan 2007
Location: Stanton DE
Posts: 18,157
phil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant futurephil6608 has a brilliant future
Check your exhaust manifolds.
If it's not one of the above mentioned,
it could be a manifold leak.
__________________
( Phil )2003 SuperCrew: JLP Built Lightning block/Stage 3 heads and cams.
L-conversion/Kenne Bell upgrade blower at 16PSI/BTS,4R100 tranny/100 shot nitrous.
594HP/620TQ Without the Nitrous 1.68 60' time/11.76 @ 116.17 with the 100 shot.
Join the the Delaware Chapter, HERE
Reply With Quote
  #4 (permalink)  
Old 09-20-2011, 03:41 PM
Coppah37 Coppah37 is offline
New User
 
Join Date: Sep 2011
Posts: 2
Coppah37 is starting off with a positive reputation.
Theres no exhaust leaks i checked that first thing when i looked at the truck. Just never really heard of the knocking in other fords before. Suppose i shall just listen to it closely every now and again to be sure its not getting worse.
Reply With Quote
  #5 (permalink)  
Old 09-22-2011, 12:27 AM
Torky2 Torky2 is offline
Posting Guru
 
Join Date: Sep 2003
Posts: 1,098
Torky2 has a good reputation on FTE.Torky2 has a good reputation on FTE.
Quote:
Originally Posted by Coppah37 View Post
........ I can hear it more down in the wheel well more than up top under the hood. Weird thing is it goes away immediately when i touch the gas (1000 rpm or so). No check engine light, oil pressure is slightly above half on the stock gauge, and no seemingly problems with how it runs...........
I just wanted to point out, that unless Ford made a change on Oil Pressure "Gauges" by model year 2001, it's not really a gauge.

It is what I called years ago, an "Idiot Gauge". Which is like an Idiot Light, but instead of using a light bulb, a meter is used instead. No real analog oil pressure sender, instead just an OFF/ON pressure switch wired in series with a meter made to read roughly half-scale when the switch is closed. The oil pressure switch closes when oil pressure is above 7 - 8 PSI or so. And that moves the meter to its display point. Which makes the driver feel good that oil pressure is OK, and relieves Ford of having to bother with customer complaints about oil pressure readings.

So in short, if you have an Idiot Gauge, you will need to use a real mechanical oil pressure gauge to really see what pressure at what RPM.
__________________
'94 Bronco XLT 5.8L E4OD Tow Pkg., Quad front shocks.
'97 F-150 Lariat SuperCab LongBed 4.6L 4R70W Tow Pkg.
2010 Escape XLT 2.5L, 6-speed Auto, FWD.
Reply With Quote
Old 09-22-2011, 12:27 AM
Reply

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997 - 2003 F150

Tags
01, 2001, 54, 54l, engine, excursion, ford, guage, issues, jumps, oil, pressure, problems, realiabilty, recalls, review, truck

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



All times are GMT -5. The time now is 08:06 AM.


Powered by vBulletin® Version 3.7.5
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. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup