99.5 F-250 Super Duty w/7.3 Powerstroke 4X4 Short Bed/Crew Cab Magnaflow 4" Turbo back SS Exhaust/5" Tip DP-Tuner>No-Start,Stock,High Idle,60HP Tow,Decel,80HP Econo,120HP Race,Lope Idle the glow plug relay for this model is located in the fuse box under the bonnet on the left hand side of the engine bay (passenger side). The relay is the second one up next to fuses 18,23 & 26.Check fuses 6,28 & 35 in this fuse box as these are the power fuses for the glow plugs & control circuit. Let me know if you require any more assistance. Relay information. R1 – Starter relay; R2 – PCM relay R3 – Air conditioning clutch relay R4 – [Diesel engines] Glow plug relay, [1.6 Duratec-16V Ti-VCT] Degas valve; R5 – Cooling fan relay; R6 – Heated windscreen relay; R7 – 15 relay; R8 – Windscreen wiper intermittent wipe relay; R9 – Horn relay; The system consists of eight glow plugs (one for each cylinder), control switch, power relay, wait lamp and a wiring harness which incorporates eight fusible wires (one for each glow plug) located between the wiring harness and the glow plug terminal. (Fig. 17). The system is activated by the ignition switch being turned to the On position. Ford Model: S-max,1.8tdci. Ford Year: 2006. UK/Ireland Location: Kent. Posted August 26, 2020. Hi all,need some advise my S-max is having starting issus only on first start up in the morning,i am having to turn ingnition key 4/5 times to get the glow plugs to heat up enough to start the engine,and yes glowplugs have been changed about 3 months supercmaxer said: Yeah easy. Two ways from top or bottom but you have to remove the under tray. cheers , no chance getting it from the top , unless you have the arms and hands of a stick man - will have to jack it up and go from underneath. M. mwain6969 Discussion starter. 12 posts · Joined 2015. #9 · Feb 22, 2016. Hawkeyes Discussion starter. 58 posts · Joined 2004. #1 · Nov 10, 2009. I planned to replace my Motorcraft GPR with the Stancor model, but my 2000 model 7.3 has the flat metal shunt separating right and left bank glow plug connections. I tried using the Stancor with the shunt, but threw an SES code, "low power to right and left bank glow plugs". Hi I have just drilled out, removed and retapped 4 sheared off glowplugs ,on fitted new ones,there seems to be no power supply feeding the newly fitted plugs despite the glowplug light still flashing I suspect the glowplug relay but having viewed some 2nd hand ones advertised on eBay I am unable yexd.