Notices
1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage
Sponsored by:
Sponsored by: Auxito

97 tps?

Thread Tools
 
Search this Thread
 
Old Jun 18, 2008 | 10:03 PM
  #1  
hucka1a's Avatar
hucka1a
Thread Starter
|
Postmaster
Joined: Oct 2005
Posts: 2,956
Likes: 0
From: Northeast TN
97 tps?

Hey Guys,
I am trying to find some info for a buddy of mine. He's got a 97 F150 4.6 4x4 auto. It idles way down when coming to a stop, and sometimes it dies. I told him it sounds like the throttle position sensor. He took it to a mechanic today, and he told him that he thought that the #6 cylinder is burnt??? I'm no mechanic, and I no nothing about a 4.6. But if this is as serious as a cylinder or piston, wouldn't the truck be missing or smoking?
Thanks
 
Reply
Old Jun 18, 2008 | 10:07 PM
  #2  
galaxie641's Avatar
galaxie641
Postmaster
Joined: Nov 2006
Posts: 4,517
Likes: 3
From: SE Wyoming
Could be a simple vacuum leak. IAC's usually go bad before the TPS does but vacuum leaks are the most common idling issues.
 
Reply
Old Jun 19, 2008 | 10:57 AM
  #3  
KingRanchMan02's Avatar
KingRanchMan02
Posting Guru
Joined: Oct 2005
Posts: 2,209
Likes: 1
From: Louisville, Kentucky
Club FTE Silver Member

I'll second the IAC valve as the source of the problem. Good luck!
 
Reply
Old Jun 19, 2008 | 05:03 PM
  #4  
projectSHO89's Avatar
projectSHO89
Hotshot
20 Year Member
Photogenic
Photoriffic
Shutterbug
Joined: Jan 2004
Posts: 19,767
Likes: 1,082
From: St Louis
Galaxie's advice is spot-on.

Check the PCV elbow for failure.

If it's okay, the IAC valve is probably gummed up, an extremely common problem for most Fords of this vintage. Cleaning the valves sometimes helps, at least temporarily. Usually, replacement is needed, though.

Steve
 
Reply
Old Jun 20, 2008 | 06:20 PM
  #5  
hucka1a's Avatar
hucka1a
Thread Starter
|
Postmaster
Joined: Oct 2005
Posts: 2,956
Likes: 0
From: Northeast TN
Thanks alot guy's. I'll be sure and tell him.
Thanks again
 
Reply
Old Jun 20, 2008 | 07:09 PM
  #6  
grandfunknut's Avatar
grandfunknut
New User
Joined: Jun 2008
Posts: 11
Likes: 0
I just fixed this same symtoms on my sons truck,iac was okay,no codes,the NYLON ,double elbow line under the throttle body to left valve cover was sucking air on 1 or both connections,I installed a hose with clamps and she idles smooth again....GOOD LUCK
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
JayzDaddy
1997 - 2003 F150
3
Jun 3, 2013 09:00 PM
Tennesseestorm
2004 - 2008 F150
2
Feb 2, 2012 08:26 PM
97Fordfan
1997 - 2003 F150
1
Jul 20, 2010 08:46 AM
XylemXorro
1997 - 2003 F150
8
May 10, 2005 06:31 PM
Tim Ervin
Modular V8 (4.6L, 5.4L)
1
Oct 18, 2003 05:52 PM




All times are GMT -5. The time now is 06:45 PM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE