TPS

KATHY1980

MEMBER
1999 FORD RANGER

where is the TPS sensor located and how do I change it?

Friday, December 12th, 2008 AT 1:07 PM

5 Replies

BMRFIXIT

MECHANIC
19,053 POSTS

Location top right side of engine on the throttle body

REMOVAL
1. Disconnect the battery ground cable.
2. Disconnect the Throttle Position (TP) sensor connector.
3. Remove the throttle position sensor.
Remove the screws.
Remove the throttle position sensor.

INSTALLATION
1. Follow the removal procedure in reverse order.
2. Install the throttle position sensor by sliding the rotary tangs into position over the throttle shaft blade, then rotate the throttle position sensor.

NOTE: Failure to install the throttle position sensor in this manner may result in excessive idle speeds.

See diagrams below

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Friday, December 12th, 2008 AT 7:11 PM

OILPAN49

MEMBER
18 POSTS
FORD RANGER

Hey everyone! Great forum!

I drive a '98 Ford Ranger 2.5L 4banger 2wd with 82K miles. Last week it started running rough and fluxuating RPM's on cold start up. It does this whenever I first start the truck for the day. After a minute of idling, it smoothes out and the truck runs fine. FWIW, last year, I put new Bosch plugs, wires, fuel filter and PCV valve.

I tried cleaning the IAC and TB with some carb cleaner and a small parts brush. Both did nothing for how the truck starts up, still the same in all ways.

I'm starting to think my TPS sensor is going out. There is no check engine light and I've learned that this is a common problem on some Rangers.

My question is how do you properly test the TPS? I do have DMM but no other testing equipment. Any advice or imput anyone has, I would appreciate. Thanks again -op-

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Tuesday, July 23rd, 2019 AT 7:36 PM (Merged)

PEPPERMRJ

MECHANIC
1,158 POSTS

That is all you will need. You can also do it thru the data link. Some scanners and most computer programs will display the output as a graph. Any unrequested spikes will tell the tale. Check your PMs.

Good luck and let us know what you find. :)

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Tuesday, July 23rd, 2019 AT 7:36 PM (Merged)

OILPAN49

MEMBER
18 POSTS

Thanks for the help peppermrj! Awesome info!

First I'll admit, I am no tech by any means. I know how to do some things to my own truck but when it comes to electrical or small tideous things, I stink at it.

Off topic question, what's the difference between probing and backprobing and more so, how do probe a connector or wire? Thanks -op-

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Tuesday, July 23rd, 2019 AT 7:36 PM (Merged)

PEPPERMRJ