November 12, 2013, 10:32 am
Hi new to this forum,i am a retired mechanic,owner of 52 plate tdci.Just fitted new single mass clutch replacement 1000 miles ago and now have glow plug light coming on and staying on then after 10 minutes driving goes out again Light does not flash on and off though,.No loss of performance or reluctance to start and good fuel readings.anybody got an idea what this is. Harry
Check the voltage at the glow plug, does it correspond with the glow plug light ?
Being a mechanic I'm sure you know this but FYI;
Once the engine has started, the glow plugs enter an after-glow phase. The after-glow phase helps to improve idling and reduce hydrocarbon emissions through more efficient combustion just after starting. The after-glow phase only operates at engine speeds below 2500 RPM, above that, the after-glow phase is interrupted to increase the durability of the glow plugs. There is a maximum after-glow time of 30 seconds at -20ºC or lower. At temperatures above 50ºC there is no after-glow phase.