Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
hi im alex, unfortunately the dash codes are worthless for engine issues, do you have any way of reading engine data?
ok when cranking does it show engine oil pressure on dash gauge
what is the engine rpm when cranking on dash
in the front cover by the HP oil pump there is a temp sensor in the front cover, if you pull that you should get oil out, then you know the pump is getting oil
also when you turn the key on do you hear the injectors buzzing/clicking?
ok if you dont here the injectors i would check the IDM relay in the fuse box under the hood
ok will it start on starting fluid and then die out?
hmm this will be hard to figure out without out a computer, if you crank on it for a while does the check engine light come on?
ok great, yes it defiantly could be, they like to stick closed after sitting a extended period of time
ok sounds good
cranking is 15psi minimum usually they are about 25 at cranking
well oil level obliviously, but usually when they wont build oil pressure it is a cracked pickup tube or regulator stuck, sometimes they have pump failures but not very often