tdi94087
Member
I encountered frequent CELs for glow plug related problems in my 2000 Golf. Tried most - contact cleaners, new glow plugs, new harness and relay (dealer's expense) - of the fixes posted here and elsewhere without success. The CEL would return with in a day of the fix.
While trying to fix the problem recently, I noticed that the boots over plugs 2 & 3 (counting from driver's side) would appear to have 'popped up' soon after a CEL appeared. Pressing down on the harness over plugs 2 and 3, I could feel a comfortable pop as the sockets seated on plug nipples.
Speculating that a combination of heat and engine vibrations cause the sockets to come loose, I tried tying down the harness with a couple of twist-ties. It has been over a week with no sign of CEL. Hope this fix takes care of intermittent CEL.
While trying to fix the problem recently, I noticed that the boots over plugs 2 & 3 (counting from driver's side) would appear to have 'popped up' soon after a CEL appeared. Pressing down on the harness over plugs 2 and 3, I could feel a comfortable pop as the sockets seated on plug nipples.
Speculating that a combination of heat and engine vibrations cause the sockets to come loose, I tried tying down the harness with a couple of twist-ties. It has been over a week with no sign of CEL. Hope this fix takes care of intermittent CEL.