If it is cold outside then yes it is best to plug it in to make for an easier start and less stress on the engine.
where is the fuel pump fuse or relay on 2005 duramax diesel
310hp
14.6 qts
The drain plug for the engine oil on a duramax should be on the back of the oil pan at the very bottom.
62 Lb-Ft
if it is diesel a duramax diesel if its gas it will be a duramax
There isn't one. Pull the lower hose.
10 qts
Where is the fuel pump on a 2003 duramax diesel
Around 750000 miles duramax is the best diesel and will last.
10gt.with filter and aways replace filter.
The OBD codes P1232 and P1244 on a Duramax 6.6 diesel could mean that the surge wire is mis- firing. Check to see if there is chafing on the chuggle connector circuit.