hello guys i have a 1986 daihatsu rocky 2.8 diesel non turbo and its a pain in the ass when start from cold. now correct if i am wrong but i am almost a 100% sure is bad glow plugs or the relay wich i will change shortly depending on what it is. now my other question is (just in case) what if i change the glow plugs or relay or both and still doesn't start from cold, what could it be?
because once it has started it runs smoothly and you can turn it off and turn in back on with no problem as long as it still hot. any help will be highly apreciated.