Factory Five Forums - Blogs - philmag https://v1.thefactoryfiveforum.com/blog.php?17847-philmag Builder community site for Factory Five Racing. en Mon, 04 May 2026 01:46:05 GMT vBulletin 10 https://v1.thefactoryfiveforum.com/images/misc/rss.jpg Factory Five Forums - Blogs - philmag https://v1.thefactoryfiveforum.com/blog.php?17847-philmag Tail light failure - bosch relay buzzing https://v1.thefactoryfiveforum.com/entry.php?1260-Tail-light-failure-bosch-relay-buzzing Tue, 07 Apr 2020 01:29:30 GMT I have been working on my MK4 for several years now and finally have the body in for paint. In my build I have installed the Russ Thompson Turn... I have been working on my MK4 for several years now and finally have the body in for paint.

In my build I have installed the Russ Thompson Turn signal system and have wired with what I think is the most typical using the Bosch and VW relay.

When originally installed, everything worked great. The momentary switched cycled thru and everything worked as it should. About a year after installed, the momentary switch started to fail as it was not cycling thru as it should. The Bosch relay started a buzzing noise when the high beams were on.

I replaced the Bosch relay and the VW relay and everything cycles however I am still getting the buzzing noise from the Bosch relay and my tail lights do not turn on when the low beams are on. The Tail lights do turn on when I press the momentary switch but only with the high beams on and in the flash to pass position. Everything else works, turn signals, brake light, flashers.

I did change the boss relay before I changed the VW relay as the Boss relay was making the buzzing noise. I tested with the new Bosch relay and the old VW relay and the buzzing did not go away. The momentary switch was still hung up. Next I replaced the VW relay and everything cycled but the buzzing continued and the tail lights do not come on when in the high beam position.

Is it possible that when I put in the new Bosch relay without a good VW relay that it cooked the Bosch relay?

Any help would be greatly appreciated. ]]> philmag https://v1.thefactoryfiveforum.com/entry.php?1260-Tail-light-failure-bosch-relay-buzzing <![CDATA[Wiring Diagram - MSD 2910 EFI & Ron Francis Harness]]> https://v1.thefactoryfiveforum.com/entry.php?1196-Wiring-Diagram-MSD-2910-EFI-amp-Ron-Francis-Harness Mon, 04 Jul 2016 02:14:42 GMT Greetings, I am in the process of wiring my roadster and will be using a MSD 2910 EFI system and the Ron Francis Harness. The directions in the... Greetings,

I am in the process of wiring my roadster and will be using a MSD 2910 EFI system and the Ron Francis Harness. The directions in the Factory Five Wiring manual are very vague. Can someone out there share a wiring diagram that will take some of the guess work out. Thanks[ATTACH=CONFIG]55726[/ATTACH][ATTACH=CONFIG]55727[/ATTACH]
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]]> philmag https://v1.thefactoryfiveforum.com/entry.php?1196-Wiring-Diagram-MSD-2910-EFI-amp-Ron-Francis-Harness Cobra irs axle girdle cover - ford racing https://v1.thefactoryfiveforum.com/entry.php?1168-Cobra-irs-axle-girdle-cover-ford-racing Mon, 27 Apr 2015 17:39:08 GMT Hello All -- I have recently received my FF MK4 on April 14th and am making some headway. I have seen some info on the forum with regards to fitting... Hello All -- I have recently received my FF MK4 on April 14th and am making some headway. I have seen some info on the forum with regards to fitting the Cobra IRS Axle Girdle Cover by Ford Racing. I have an 8.8 differential from a Lincoln MK VIII, installed a Eaton Truetrac differential with 3:55 gears. The differential is all painted with the new rear cover installed. As I research, I am finding that it wont fit unless I remove the cover. Please tell me it isn't so. I have seen a video where someone installed the pumpkin (did not have the dressed up Axle Cover) thru the rear suspension bars but the did not remove the rear cover.

I attended the build school in the beginning of February and so far am moving right along on removing the panels. Any help in this matter would be greatly appreciated. Thanks ]]> philmag https://v1.thefactoryfiveforum.com/entry.php?1168-Cobra-irs-axle-girdle-cover-ford-racing