Researched and diagnosed relentlessly, can't figure this out.
Trouble starting from overnight sit (even in summer). Takes long cranks to start, and for first ~30sec it idles extremely rough, spewing heavy white/blue smoke. After it warms up, it purrs like a kitten. Cold starts also seem to cause massive fuel consumption (more than normal starting). Glow light plug only comes on for 1-2sec (shuts off before other dash lights when moving from key-on to start position).
Symptom seems to get worse based on how wet it is out (dew or heavy overnight or current rain). But only when cold starting (IE hot wet starting is fine). This really confuses me. I want to diagnose and fix before Canadian winter.
Diagnosis: Tested resistance in all glow plugs, all 4 are reading 0.8 to 0.9ohms. Checked glow plug harness, seems to be in good condition but unsure of proper method of testing function. There is new diesel fuel filter. Haven't gone into injector pump.
Symptoms that are NOT occurring:
-Hot starts are perfectly fine, starts on first crank when engine warm.
-Low idle when warm is excellent, purrs like a kitten.
-No smoke or power loss when engine warm.
Just cold starting issues. Please help as I am lost! PS. Model is 02 TDI Golf.
Trouble starting from overnight sit (even in summer). Takes long cranks to start, and for first ~30sec it idles extremely rough, spewing heavy white/blue smoke. After it warms up, it purrs like a kitten. Cold starts also seem to cause massive fuel consumption (more than normal starting). Glow light plug only comes on for 1-2sec (shuts off before other dash lights when moving from key-on to start position).
Symptom seems to get worse based on how wet it is out (dew or heavy overnight or current rain). But only when cold starting (IE hot wet starting is fine). This really confuses me. I want to diagnose and fix before Canadian winter.
Diagnosis: Tested resistance in all glow plugs, all 4 are reading 0.8 to 0.9ohms. Checked glow plug harness, seems to be in good condition but unsure of proper method of testing function. There is new diesel fuel filter. Haven't gone into injector pump.
Symptoms that are NOT occurring:
-Hot starts are perfectly fine, starts on first crank when engine warm.
-Low idle when warm is excellent, purrs like a kitten.
-No smoke or power loss when engine warm.
Just cold starting issues. Please help as I am lost! PS. Model is 02 TDI Golf.