TPS replacement question?
Thread Starter
|
Freshman User
Joined: Aug 2004
Posts: 36
Likes: 0
From: KS
TPS replacement question?
Hi, am going to replace the Throttle Position Sensor on a 89 f250 302 fi, was wondering if this can be removed and replaced without having to remove the throttle body . Also is this sensor just a remove and replaced item or are adjustments, or alignment of this sensor required.
Any info is appreciated.
Any info is appreciated.
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
I think you will have to remove the throttle body to get to the TPS. For the most part it is just remove and replace, but do make sure the closed throttle voltage (measured between the green and black wires with the TPS plugged into the harness and the key on, engine off) is around .9V.
Thread Starter
|
Freshman User
Joined: Aug 2004
Posts: 36
Likes: 0
From: KS
replaced tps now idle too high
EPNCSU2006
Replaced tps and check voltage, voltage was .92, now idle speed is too high. Have readjusted timing twice but it does not make any difference. Idle speed is around 1500rpm, have also replaced Idle speed by pass valve, ?Know I did something wrong but do not know what it was.?
Any info on where I should look for problem would be apprieciated!
Replaced tps and check voltage, voltage was .92, now idle speed is too high. Have readjusted timing twice but it does not make any difference. Idle speed is around 1500rpm, have also replaced Idle speed by pass valve, ?Know I did something wrong but do not know what it was.?
Any info on where I should look for problem would be apprieciated!
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
Did you put a new gasket on between the throttle body and the intake manifold? It sounds like there is a vacuum leak somewhere. Also might want to try resetting the computer by disconnecting the battery for 10 minutes or so if you haven't done so already. It should work fine, so long as you didn't mess with the throttle stop screw to get voltage to the right place.
Thread Starter
|
Freshman User
Joined: Aug 2004
Posts: 36
Likes: 0
From: KS
gasket vaccumn leak
EPNCSU2006
You where right,. there is a vaccumn leak on gasket.
Replaced the gasket twice aready. I lightly oiled it before installing, Is that the correct thing to do or should it be installed dry.
I did clean mounting surface area with throttle cleaner and used a popsickle stick to remove any gasket material that where stuck to mounting surfaces, so I believe surfaces where clean and undamaged. Have one gasket left, will check throttle mounting bolts again for torque specs. Then try to seal leak with new gasket. If I am doing anything incorrectly please let me know what it is.
Appreciate your responses! Thanks
You where right,. there is a vaccumn leak on gasket.
Replaced the gasket twice aready. I lightly oiled it before installing, Is that the correct thing to do or should it be installed dry.
I did clean mounting surface area with throttle cleaner and used a popsickle stick to remove any gasket material that where stuck to mounting surfaces, so I believe surfaces where clean and undamaged. Have one gasket left, will check throttle mounting bolts again for torque specs. Then try to seal leak with new gasket. If I am doing anything incorrectly please let me know what it is.
Appreciate your responses! Thanks
Lead Driver
Joined: Nov 2002
Posts: 9,557
Likes: 44
From: Concord, NC
If it's a paper gasket, I would just put it on dry. Make very sure the mating surfaces are clean and free of any parts of the old gasket. Be sure to torque the bolts down to the correct specification.
Thread Starter
|
Freshman User
Joined: Aug 2004
Posts: 36
Likes: 0
From: KS
EPNCSU2006
Thank You. will do as you suggest!
REALLY DO appreciate your imput!
THANK YOU FOR YOUR TIME< AND ALL OF YOU SUGGESTIONS!
farmeboy (the OLD FART)!
Thank You. will do as you suggest!
REALLY DO appreciate your imput!
THANK YOU FOR YOUR TIME< AND ALL OF YOU SUGGESTIONS!
farmeboy (the OLD FART)!
Trending Topics
New User
Joined: Sep 2004
Posts: 4
Likes: 0
I just removed my TPS. Pull the connector, remove the two screws, and it lifts right off the top of the throttle.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread
Thread Starter
Forum
Replies
Last Post
makuloco2000
Explorer, Sport Trac, Mountaineer & Aviator
0
Feb 27, 2014 10:26 PM
jsimpson
1987 - 1996 F150 & Larger F-Series Trucks
6
Jan 18, 2009 07:35 PM
runner
1987 - 1996 F150 & Larger F-Series Trucks
13
Oct 6, 2006 04:15 PM