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2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

DIY TPS sensor fix.

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  #1  
Old 11-25-2007, 06:57 PM
steve05ram360 steve05ram360 is offline
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Default DIY TPS sensor fix.

Bad ones cause surging with auto's on the freeway, manual tranny's would also benifit from the cleaning but wont notice the affects. you MAY see a slight bump in mileage as the PCM wont think your foot is mashed to the floor intermitantly anymore (no noise).


4.7 motor in my Dak... had a bad surging problem on the freeway and as we all know it's the TPS. So having nothing to loose, I yanked it out, drilled a small hole large enough to fit a spray tube for a can of CRC electronic components cleaner and sprayed it in until I felt there was enough in there to clean it... I then turned the TPS shaft several times to clean the contacts on the inside. Dried it out, slapped it back in, took it for a drive and bam... no more surging. rock solid on the freeway now.

SO now we have a fix for the TPS sensor. This will work for the 3.9/5.2/5.9/4.7 motors and probably the 3.7 & 5.7 motors as well.

When your done, put a very small piece of electrical tape over the hole and then cover the tape with silicon to keep the tape in place and to keep dirt out. I dont suggest filling the hole with silicon as if you need to access the hole again, you may push some that is in the hole into the sensor which could cause problems.

1. Remove TPS sensor from Throttle body

Click the image to open in full size.

Click the image to open in full size.

2. Drill a 1/8" hole in a spot where you will be able to spray in CRC Electronic Component Cleaner and the drill bit will not go in too deep too fast.
in other words... drill with a very light hand so you dont damage the contents of the sensor.

Click the image to open in full size.

3. Spray the cleaner into the hole, dont be shy with it...

Click the image to open in full size.

4. Rotate the sensor shaft so that the cleaner will get into the contact area's of the sensor.

5. Shake out the excess solvent until all of it is out.

6. Once your convinced it is dry, cover the hole with a very small piece of electrical tape and seal with silicon sealant.

Click the image to open in full size.

Click the image to open in full size.

7. reinstall sensor into the TB.

8. Reconnect the sensor electrical connector and your done.

Pics this weekend.
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  #2  
Old 05-14-2009, 08:14 PM
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Thank you very much Steve! I had a surging problem since the tranny was re-built a few weeks ago, and this fixed it! The truck also shifts a little bit better. 10 minutes and $7 is better than $70 for a new TPS!
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Old 05-14-2009, 08:22 PM
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with my luck the little pieces of plastic that drop inside from drilling the hole would cause it to stop working when I am 200 miles from home.
but it's a good quick fix.
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Old 05-14-2009, 09:17 PM
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Get ready for a new one, Purpl. From my experience, and many others, the TPS will most likely fail shortly after doing this.
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Old 05-14-2009, 09:40 PM
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GOD DAMNIT!!!!!!!!!!
Way to tell us now! !!!
It would be nice if you posted that when it happened to you! Instead of letting us think there is a cheap fix for a surging TPS.

what the ****?
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Old 05-14-2009, 10:05 PM
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It has been posted several times in the past about people's bad experiences with this mod...sorry. It's not instantaneous...mine lasted for about 6 months after the mod.
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Old 05-14-2009, 10:11 PM
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I'll just replace it when I get the Hughes Plenum plate later this Fall.
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Old 05-15-2009, 01:45 AM
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i did this to my truck last summer and havent had any probs....just tested it the other day and it has a nice steady sweep to it on the multimeter
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Old 05-15-2009, 04:22 AM
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Quote:
Originally Posted by PurplDodge View Post
10 minutes and $7 is better than $70 for a new TPS!
They ain't $70, young whipper snapper. Advance Auto has them for $40.49, BWD with 1 year warranty. O'Reillys has them for $50.99, same exact thing except lifetime warranty.

O'Reillys also price matches, so bring a print out of Advance Auto's TPS from their website if you go.
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Old 05-15-2009, 06:31 AM
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Sensors and little **** like that, I will only buy Mopar.
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Old 05-15-2009, 06:31 AM
 
 
 
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Tags
2001, 318, 47, bad, change, connector, diy, dodge, durango, mopar, price, ram, sensor, signs, tps

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