The TPS replacment from hell

Ben824

NAXJA Forum User
Location
Woodstock, GA
Ok so I bought a new TPS today to help cure an overdrive problem. I am cleaning the NSS, adjusting the transmission cable, and replacing the TPS since my symptoms could be caused by one of the three. I had a $20 credit at autozone which made just replacing the TPS make more sense than fooling with getting and old school non-digital voltmeter and trying to test it. The other two probable causes are free to address so by doing all three I am hitting all my bases.

Anyway so we all know this is a super easy repair two little torx bolts and the thing is off and throw the new one on and tighten down the bolts. But oh no, not on my Jeep. I snap the head off one bolt and strip the other bolt as well as break two torx tools in the process. So I puled the throttle body off and ground off the head of the striped bolt and off came the old TPS. Now as you are probably thinking, just grab whats left of the bolt with a pair of vise grip pliers and back it out. Nope snapped off what was left of both bolt clean flush with the throttle body. I live in an apartment so my means for work space and tools is limited so its off to the Junkyard for me tomorrow to buy a new throttle body.

Is there a better way to prevent this when looking for a new one? I am going to make sure I can get the bolts out of the TPS, IAC, and the MAP sensor on the one I pick up first so that I can reuse the ones I have currently if the ones on the new TB aren't in good shape. I was thinking of putting some anti-seize on all the bolts for the three sensors so that this kinda failure does not happen again to me in the future. Does that seem like a good idea or would that not be good here?
 
If memory serves, all those little screws for all the sensors on the TB have blue loc-tite on them from the factory. They're always a pain in the arse to get out the first time. Can't say i've ever broken one, but I have broke torx bits and rounded off plenty of heads trying to remove the stupid things.

Once you get it off the first time, it won't be an issue in the future if you have to remove them again. Unless you add more loc-tite or something...
 
You might want to remove the TPS at the junkyard so you know it will come off lol. I did the same thing with my first throttlebody. I ended up stripping the threading on the TB after I was done. I had to retap the holes after drilling it out.
 
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