@!$%!#@# T.p.s.

[EOliver]

All Right... now what?



This darn TPS is really giving me fits... I bought a brand new one about 6 months ago ($230!!!), and now it's acting up.



What should I do?

 

[BushWakr - RIP]

Hey Eric, did you check it when you put it in??? If so, check it again and see if you are getting different readings or fluctuating readings.

(Isn't there a 1 year warranty on parts?)

There is no reason for the TPS to go out on you in only 6 months, so check it first. If it reads ok on the test then you need to look elsewhere for your problem.

Can you describe your symptoms in more detail, it would help a bit.



bob.

 

[nascar mark]

Hit it with a hammer!!! I did. That and turned it up side down, sprayed with wd-40 and reinstalled. Works pretty good.



mark

PDR - Black Sheep Racing

 

[BushWakr - RIP]

Ahhhhh yes... . the president of "WildMan Motors" is at it again... .

wack the sucker, spay it in the face and blind it, then wack it again... .

Seriously though sometimes the spray job works just fine, but it's new mark..... Hey, you could swap it for marks... ya. .



Bob.

 

[nascar mark]

Ahhhh come on Bob, let the guy take his frustrations out on it.



Seriously, as far as I know electrical parts are 5 feet or 5 sec for warranty from most.



Try soaking it upside down for awhile and reinstall. Let us know more as to what it is doing and we might be able to help more with set up.



mark

PDR - Black Sheep Racing

 

[Philip]

"WildMan Motors"

ROFLMAO

 

[EOliver]

Well, last time it acted up I was in the middle of nowhere with no tools so I picked up a small rock and tapped on it. It worked correctly for about two months after that. Today I went and purchased some Electrical Connector and Contact Cleaner, removed the @!$%!#@# T. P. S. , and sprayed the stuff all over and inside while working the contacts. I put it back on the truck and it seems to work flawlessly thus far.

 

[nascar mark]

I tell no lies.



mark

PDR - Black Sheep Racing

 

[BushWakr - RIP]

... . Rats... . I hate it when he's right... . otherwise, how am I gonna learn if he don't make mistakes.....

WildMan strikes again... . :-laf :-laf :-laf



Bob...

 

[Wayno]

Just take it apart and clean it . Its not that hard to do. That what I did to mine and it has work get ever since.

 

[BushWakr - RIP]

mark and others are quite right. This thing is really nothing more than a glorified rheostat. It gets gummed up internally and often times you can "revive" them by using electrical spray contact cleaner. I've never use anything other than that since it is "electrical" in nature.

Have you looked at "Bobs TPS Gallery" pics?? you can get a general idea of what they look like inside.

The thing is, any lube that may have been inside when manufactured dry's out and gets kinda gummed up, this in turn interrupts the electrical connection/continuity and causes incorrect voltage output. That in turn, causes the wacky shifting.

Just make sure that you take readings, make notes on position(s) locations etc before you remove and work on it. You really need to put it back just the way it came off. The shaft out the bottom is spring loaded and the little hex head end fits into the female hex socket beneath it. When you remove it try to look at that connection to see if the hex head (on shaft) rotates because it has to go back into the socket in the same position it come out of.

If you put it back on and the thing is out of position you'll have to diddle with it to make sure you have the right "at rest voltage" and proper voltage "sweep" .



bob.

 

[Braveair78]

I've never had any problem with the TPS on any of my Dodge trucks. The electrical contact cleaner is a good idea. . barring that if you can get to the contacts use a pencil eraser to remove oxidation from the rheostat contacts. Also check the pigtail wires that the TPS hooks up to... heck it may even be a problem where it hooks to the engine computer. I've never tried this but it should work... use some dielectric grease on the rheostat. . you can get it at most autoparts stores. All it does is is keep the air off of the contacts and keeps them from oxidizing. Have you noticed the grease on some lightbulbs when you remove them from the vehicle? dielectric grease. And if the truth really be known... dielectric grease is no more than Vasaline

 

[BushWakr - RIP]

Well???



Either I missed it or there hasn't been a follow-up to how this turned out... what's the scoop on the outcome??





Bob.

 

[RamAZ]

TPS

I installed a new TPS awhile back and reset the voltage to . 9 and the trans still shifted funny, hunted sometimes and such. I finally looked at the speed sensor and found that it had a cracked nut, replace it and the trans temperature sensor at the same time. I then reset the voltage to . 9 volts and everything has been fine for over a 18 months now. On my truck . 7 volts is to low.



If you find the speed sensor is ok, I would spray the connector with contact cleaner and put dialectric grease in it and rehook up also clean the trans temperature sensor connection.



I fought the poor shifting of the transmission for sometime before replacing the items listed. The best fix for clleaning the TPS is to take the top off and spray with contact cleaner and reinstall.



By the way, the design of the speed sensor is a carbon wiper assembly and will wear.



Best of luck.



Jim

 

[hdm48]

OK, here's one for ya.

My beloved TPS desided to die a quick death on friday evening. (is that timing or what?) Anyway, I called NAPA and ordered a new one. Since I'm sure I have made a few of their rent payments for them they managed to get me one Sat AM. Maybe it's 'cause I'm cute?

So, I put it in, and now it does something I kinda like. If I chop the throttle to zero at 45mph and down, it comes out of overdrive and helps me slow down. I adjusted it right.

If I adjust it up, then it takes forever to shift up. I'm not complaining, I like it.

Anyone else have this option? My Motor home does the same thing, but it's a chebby beast.



--dave--

 

[BushWakr - RIP]

Ahhhh Dave,



You're so cute... .



Maybe you could post your at rest settings and WOT setting for anyone who may want to experiment with the OD dropout like you have...

I bet it's atleast 1. 00 vdc. or more.

bob.

 

[hdm48]

Bob, yer darn right I'm cute! Just ask me,, I'll tell ya.



Ya, I'll post the numbers as soon as I can.



I looked in my manual and it makes no mention to this down shift thing. I'm sure it won't bother the trans as it takes place at slow speeds and no load. Like I said before, I like it.

I'm sure some of you would like a little "slow-down" like the manual shift guys have. It's just that it never did this before. Could it be that the NAPA TPS has a different resistance value at "O" than the factory one does?

I don't know, Maybe it's aliens?



-Dave-

 

[nascar mark]

Nope, Dave it not a Napa thing. I have been running that setup for a year now. I told Bill (DTT) about this one aalmost a year ago and he said cool. Went for a ride with him and he said he never seen that before.

It's due to lower than normal voltage. My truck likes . 18 v yes thats right. Stock(factory) tps. Its like having the best of both worlds.

It comes down to the tps and truck some will do it or like it , some will not.

 

[hdm48]

Ok, now this is getting wierd. Mine is set at . 8v. And it does it.

How come id didnd do dat be4? Must be an alien conspiracy.

This is wierd. But I like it.

Sorry BOB, I don't have an answer for ya on this one. Maybe it's a Black truck thing? I thought they were better, now I know!

(now don't any of you white truck owners say anything crude and volger)





gotta be aliens









-dave-

 

[BushWakr - RIP]

Hey now, I gotta black truck too... . I guess I better go fiddle with Bill's work of art and see if I can make mine do that... BTW Dave. .

volgar=vulgar... darn aliens messing with a guys spelling too... . were's my stick... ... .



How in the wide world of sports mark got his down around . 18vdc is a real mystery... . but then... . he's mysterious to begin with...

Guy's we need to do a 'late night surveilance' on wildman's truck... and snag Piers' stoopid pump while we'z at it... oh ya, and his nitrous, and his, Detroit Locker, and his, ahhhhh hang... lets just truck nap the whole blasted thing... .



bob.