Re: [DML] My fan made it all the way Through the day, but my fan belt di
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Re: [DML] My fan made it all the way Through the day, but my fan belt didn't

The instrument cluster shares one single 12 gauge ground wire with the fuel pump (via the inertia switch), windshield wiper motor, binnacle illumination, turn signals, and courtesy/door lights (via the drivers door plunger). 

It is a very overloaded and noisy ground wire, IMHO.

Dave McKeen measured a 1.41 volt drop between the inertia switch and the battery (too bad he didn't measure his voltage drop between the inertia switch and the rear bulkhead bolt). Considering that the pump ground is 6 gauge/frame/4 gauge between the rear bulkhead bolt and the battery, and that Dave's terminals & frame connections are likely in good condition, his measured drop should still be a reasonable indication of the inadequacy of the single 12 gauge factory ground wire (at the time of his test Dave certainly had the instrument cluster active and his driver door was open, but his courtesy lights are be burning LED's -- he didn't even have the binnacle bulbs, turn signals, or windshield wipers on).

Bill Robertson

--- In dmcnews@xxxxxxxxxxxxxxx, "Welmoed" <welmoedj@...> wrote:
> Since you mention the instruments panel behaving better now, may I advice to consider Bitsyncmasters solution for grounding the inertia switch?
> That solution also solved my instability of the fuel gauge, the Voltage gauge and some other gorund related issues.
> Welmoed.


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