My truck won't start.

[JoeAAA]

I had a bad fan clutch and my truck overheated to the point it shot off. I change the engine oil and worked for about 3 weeks. Know it won' start I checked the oil and needed about 6 Ltrs. To bring it to the right level. Where did the oil go in 3 weeks. I checed voltage drop at the starter is ok.  batteries are ok. Fill the fuel filters one was empty. Should I expect a serious problem?

 

[h67st]

Has it been smoking or leaking oil? It's possible you scored the liners when it overheated and now it's using a lot of oil. If that's the case you need an overhaul.

[gearhead204]

when you say it wont start, and you are checking battery voltage I assume you are saying it wont crank over ?  If this is the case, you could have a cylinder full of coolant (caused by a cracked head or failed head gasket as a result of the overheating ) or you could have spun a main or rod bearing due to the low oil level .