Symptoms of a throttle position sensor going bad? - Page 2 - Ford Truck Enthusiasts Forums
 

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Log In 


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Symptoms of a throttle position sensor going bad?

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #16  
Old 10-06-2003, 11:37 AM
dfawvor dfawvor is offline
Freshman User
 
Join Date: May 2003
Posts: 29
dfawvor is starting off with a positive reputation.
Shutterman-

My check engine light never came on. I was quite honestly fed up with my truck and resigned to the fact that the motor would never have any power. Then I stopped trying to be cheap and bought a code reader. Best money ever spent. The key on/engine off told me the map sensor was bad so I replaced it. The key on/engine running test told me my O2 sensor was bad. I haven't changed that yet.

dfawvor
__________________
88 F-150 302
Just your basic old truck!
Reply With Quote
  #17  
Old 10-06-2003, 03:16 PM
shutterman shutterman is offline
New User
 
Join Date: Aug 2003
Posts: 7
shutterman is starting off with a positive reputation.
dfawvor,
Thanks for the info.!! I will be buying a code reader very soon.
This is a very cool and helpful site !!!!!

shutterman
Reply With Quote
  #18  
Old 03-09-2011, 06:04 PM
PeterSr PeterSr is offline
Junior User
 
Join Date: Jan 2011
Posts: 57
PeterSr is starting off with a positive reputation.
And I to love my 1992 Ford F250 5.8L that's rated at OVER 8600 lbs. I too have been having this problem which I believe I have narrowed down to the TPS. My question is: Will I have to reset the TPS if I remove it and replace it with a new one. Also, can this problem be caused by a bad MAP Sensor? I am at wits end! I have probably put several thousand dollars into the engine because of a nasty short in the electrical system that knocked out all my fusible links, my alternator, my starter and so on so forth. However, the EEC-IV and other electronics were not affected. This puzzles me!!?? I would appreciate your reply very much. Thanks.
Reply With Quote
  #19  
Old 07-06-2015, 03:36 PM
Azframer Azframer is offline
New User
 
Join Date: Jul 2015
Posts: 4
Azframer is starting off with a positive reputation.
Sometimes a Mass Air Flow sensor will cause same symptoms. I had a issue like this with my 94' Ranger and I asked my mechanic friend about it. He told me to disconnect it and if that was my problem my engine would run better.

It would from time to time act like it was running out of gas, lacked power engine light would come on. I would take it out of gear and rev it a couple times engine light would go out and I was good for a while.
After unplugging it it ran great, so that was my problem then. I asked how much they were he said lets look at it 1st, we took it out and there was a small speck of dust on it, we blew it off with electronics air in a can. I was all set no money spent on new sensor. So check that if you are lacking power and your engine light comes on with lack of power.
Reply With Quote
  #20  
Old 07-07-2015, 12:28 AM
Ed Bamba Ed Bamba is offline
Senior User
 
Join Date: Jun 1999
Location: Las Vegas
Posts: 472
Ed Bamba is starting off with a positive reputation.
The original post is almost twelve years old, and the post before yours is was posted over four years ago. Hopefully they got the issue resolved by now lol.
BTW, welcome to the forum, lots of knowledgeable folks on here. Hopefully you'll stick around and add to the knowledge base.
__________________
1991 F150 Supercab XLT Lariat, 302 CI, JBA shorty headers, M5OD tranny. All-steel custom hood with 72 Torino Grand Sport hood scoop, Night Stalker bumper cover. 92-96 side view mirrors.
Reply With Quote
  #21  
Old 07-07-2015, 05:54 PM
Azframer Azframer is offline
New User
 
Join Date: Jul 2015
Posts: 4
Azframer is starting off with a positive reputation.
Yea I was looking for symptoms for TPS when I ran across this thread and thought I would put my problem on the record after I saw one with a engine light coming on.

Rick
Reply With Quote
  #22  
Old 08-17-2015, 10:54 PM
ABeautifulTree ABeautifulTree is offline
New User
 
Join Date: Jun 2015
Posts: 15
ABeautifulTree is starting off with a positive reputation.
Do you know if the tps could be bad in these trucks and not throw the check engine light or a code the reader will get?
Reply With Quote
  #23  
Old 08-18-2015, 09:22 AM
rla2005's Avatar
rla2005 rla2005 is offline
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 10,025
rla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to behold
Quote:
Originally Posted by ABeautifulTree View Post
Do you know if the tps could be bad in these trucks and not throw the check engine light or a code the reader will get?
Yes....

Measure the output: Throttle Position Sensor

Be careful using an auto-ranging DVM, the display has some lag and it may change ranges on you during the testing. I manually set the voltage range then slowly open throttle while watching the meter (Key On Engine Off). It may take a few tries to determine if there are any dips or spikes in the output signal. It should sweep linearly from closed to open throttle.
__________________
2013 Ford Taurus Limited 3.5L
2006 Ford Mustang GT 5-speed 3v 4.6L
rla2005@yahoo.com
Randy A | Central Illinois
Reply With Quote
  #24  
Old 08-18-2015, 12:45 PM
JLuskin JLuskin is offline
New User
 
Join Date: Apr 2015
Posts: 6
JLuskin is starting off with a positive reputation.
I had a bad tps in my 95 351w. Bought the truck in April 2015 and noticed it didn't have much power and was kind of disappointed in my purchase. As the weather started to get hotter the truck ran worse. During days of say 80 degrees or hotter the truck would barely accelerate, probably took a good 3 or 4 minutes to get to 60 mph with the pedal to the floor. Had my mechanic look at it. He read the codes and came up with tps low circuit I believe. He replaced it and it felt like a brand new motor.
Reply With Quote
  #25  
Old 08-18-2015, 04:34 PM
Craig5_12 Craig5_12 is offline
Senior User
 
Join Date: Jul 2004
Location: Sacatomato
Posts: 279
Craig5_12 is starting off with a positive reputation.
Just to throw my .02 into this very old thread...my 2003 jeep was downshifting constantly if I didn't hold the gas pedal completely still when I was cruising. The slightest bump in the road would make my foot move and the jeep would downshift. Turned out to be the TPS.
Reply With Quote
  #26  
Old 08-18-2015, 04:48 PM
rla2005's Avatar
rla2005 rla2005 is offline
Post Fiend
 
Join Date: Oct 2005
Location: Illinois
Posts: 10,025
rla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to beholdrla2005 is a splendid one to behold
Both examples above are why you properly diagnose the issue. Start with the code check, if that passes break out the meter. For the sake of your wallet thickness please do not start throwing parts at the issue. The cheaper aftermarket TPS sensors are well known to be inferior to a Motorcraft brand. It's too much money to throw away for no reason.
__________________
2013 Ford Taurus Limited 3.5L
2006 Ford Mustang GT 5-speed 3v 4.6L
rla2005@yahoo.com
Randy A | Central Illinois
Reply With Quote
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
Need Help: 2006 F250 Powerstroke. sstellmon 6.0L Power Stroke Diesel 2 03-11-2015 11:25 PM
Almost no brakes at low speed Bertelrud Super Duty & Heavy Duty 11 03-02-2015 08:58 AM
Transfer Case Knocking? SpencerS 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 1 01-05-2015 06:33 PM
Excursion Front end bouncing mkbishopsa Excursion - King of SUVs 10 08-06-2014 10:35 AM
4 wheel drive not engaging Rus01 6.4L Power Stroke Diesel 7 12-10-2013 03:03 PM


Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

Tags
1992, 58, 58l, 93, accelerator, bad, f150, f250, ford, map, position, sensor, symptoms, throttle, tps

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 05:28 AM.

 

Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - 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