Throttlebody ground wire - Hemi Truck Club
 
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Old 03-02-2012, 02:24 PM   #1
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I was poking around on Dodge talk and some guys there said they ran a ground wire from the throttlebody housing to a suitable ground on the fender. They claim quicker starts, smoother idleing among other good things. Anyone have any experience, input, advice on the matter or is it their imagination at work.

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Old 03-02-2012, 02:24 PM   #2
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I was poking around on Dodge talk and some guys there said they ran a ground wire from the throttlebody housing to a suitable ground on the fender. They claim quicker starts, smoother idleing among other good things. Anyone have any experience, input, advice on the matter or is it their imagination at work.
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SRT10 undersprung rear axle with 4:56 gears, Mcgaughy's 2" drop spindles and Belltech 2" drop coils, supermaxx longtube headers and hi perf cats, Edge Evolution gauge pack, Fiberglass hood with functional shaker ram air, and Airaid CAI, 180 Jet stat
Flexalite E fan, Diablo tuner
22'S WITH 305"S all 4 corners
Hurst Roll Control
SRT10 rear sway bar
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Old 03-02-2012, 05:36 PM   #3
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Hummmm.... It's worth testing. Wont take much.
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Old 03-03-2012, 09:53 PM   #4
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That's a big topic on DT, I first posted I didn't think it was a good idea to induce a common (dirty) ground into the PCM's filtered ground circuit. But with the reviews that have been posted I can't see any reason not to at least try it.
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Old 03-04-2012, 08:24 AM   #5
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I just finished installing a nice fat ground wire (#10 stranded with crimp-on ring terminals) from the top passenger side TB mounting bolt to the passenger side fender. Before this I checked with my digital multimeter and the TB case had no continuity to ground at all. Now it has a good ground on it. The initial road test felt smooth and strong. Of course today the air is cool and dry and the barometric pressure is high. My truck always runs strong in this kind of air, so I will have to drive for a lot more miles before I can tell if the ground wire is making a real difference.
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Old 03-04-2012, 02:04 PM   #6
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This just popped up on the latest Dodge Talk emailed newsletter and prompted discussion on the Ram Forumz. Isn't this supposed to be a Gen3 only mod? Has anyone done it to a Gen4 and found results?
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Old 03-04-2012, 05:00 PM   #7
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When I was looking up info on this subject I also saw the statement that this ground wire mod is for gen 3 but not gen 4. I'd like someone with a gen 4 to check with an ohm meter to see if their TB case is connected to ground already.
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Old 03-21-2012, 10:45 AM   #8
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This makes no sense. I measured my TB body to chassis ground and also found no continuity. And actually looking at the wiring diagram it doesn't need to be grounded as the TPS and idle motor are grounded internally and are insulated from the TB body. But I connected a 12ga wire to the TB body cnnecting to the passenger side head and the PCM housing. Surprisingly it feels a little more responsive. IDK, shouldn't make a difference.
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Old 03-21-2012, 05:53 PM   #9
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2010 Ram...TB No Ground Found w/ multimeter

I did this mod last week as I couldn't get my ported TB to quit surging.

Ran an 8" #10 wire w/ crimped eyelets on both ends from TB mounting bolt to engine stud directly below it and no more surging.

Tried it on the stock TB also and the throttle response was quicker and idle was smoother.

Actually the cheapest mod on my truck.
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Old 03-21-2012, 06:50 PM   #10
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Hummm..... I'll have to investigate and test out this mod.

I wonder with air flowing over the butterfly valve, if it's creating a small static charge? Static charges can affect electronics if their not grounded or insulated correctly.
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