Short clip on a 1988 Ford F-250 7.3L idi to show the glow plug location and how to locate them to change the glow plugs.Video recording equipment:GoPro Hero Hi. No, not done a dash test but we had the glow plug relay off and my friend tested it with his machine and on one of the metal things it didn't read, my friend said it wasn't working. so he took another relay and put it in the place where the glow plug relay should be, and we could hear no buzz noise as he put it in, so he then says the board/circuit thingy may not be working and said he'll One post of the glow plug relay should be hot all of the time. If it isn't then the wire coming off of that post (yellow I think) is going to have a fusible link at the starter relay on the passenger side fender. Check that. There is also a 20 amp maxi-fuse in the under hood fuse box, check that as well. There is also a fuse under the dash that 3xKcyCy. F250 won't start. 1987 - 1996 F150 & Larger F-Series Trucks - Glow Plug Relay - When I got this truck a week ago, (93 F250 7.3 Turbo, 188k miles) the glow plug relay clicked a couple times a second when Wait to Start was on. It had, what I believe, were stock GP's, so I replaced them with Motorcraft. Hi. No, not done a dash test but we had the glow plug relay off and my friend tested it with his machine and on one of the metal things it didn't read, my friend said it wasn't working. so he took another relay and put it in the place where the glow plug relay should be, and we could hear no buzz noise as he put it in, so he then says the board/circuit thingy may not be working and said he'll Hi everyone new to this forum first post Have been using Ross tech vcds since I purchased my new Passat 2.0 tdi GT b8 3g2 DFCA engine 3-4 yrs ago no problems until now 6005 posts · Joined 2004. #2 · Dec 12, 2005. If it was a fuse the problem would be a completely down GP system, if your problem is intermentent, then I don't think it would be a fuse. To be honest I don't know if there is a fuse for the GP's the owners manual should show it. Why don't you tell us the specifics about your problem so we can Guest. Hometune. 10-01-14 15:35. Engine bay fuse box. 2 rows of relays on the right hand side as you look from the front of the car. It is the one nearest you on the left hand row (row of 5 relays - 2 small and 3 large type). Also the fuse, 60 amp, is the extreme right hand side one of the first row of 6 (nearest the windscreen).

ford focus glow plug relay location