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i ahve a 92 f250 with a 7.3 and when i try to start it it cranks good for a couple revolutions then sound like the batterys are dead i tried it with the charger on all night tried jumping it with my friends truck still the same took an hour and some ether to get it going i took the batterys in to get tested and they are fine anyone have an idea maybe starter?
i ahve a 92 f250 with a 7.3 and when i try to start it it cranks good for a couple revolutions then sound like the batterys are dead i tried it with the charger on all night tried jumping it with my friends truck still the same took an hour and some ether to get it going i took the batterys in to get tested and they are fine anyone have an idea maybe starter?
Check your battery cables closely for corrosion and looseness. Even if there is no corrosion at the terminals, it can grow in the insulation and cause resistance problems.
You can also (carefully) feel the wire connectors for hot spots. Again, carefully, because if theres enough heat to eat up cranking power, it will get quite hot but its not uncommon.
no matter what i have it hooked up to charging i tried putting the charger on it all night i tried jumping it with my friends diesel and its the same the guy i got it from just replaced the alternator and it was sitting for 2 months befor i got it
The problem could be bad cables or the starter could be about to fail.
The cable problem is not visible, the corrosion is actually inside the battery cable clamp.
I had this a while back and cut mt clamp open to see what was wrong.
When I could see the inside of the clamp, I was amazed it had ever started.
Something else to consider, all electricity in and out of the battery system passes though the passenger side battery terminal.
Three wires join in that clamp, wire to starter, wire to drivers side battery and wire to the chassis wiring AKA alternator system.
After the starter slows down feel the clamp carefully, if it is hot, your problem is probably inside the clamp.
When starter get old, heat there can cause them to loose connection and slow down before they die completely.
the batteries are 1050 cca i will check all the connections again but i really dont think its that the previous owner is giving me a brand new starter so i might try that thank you for all your help guys
Well, come back and tell us if the starter made any difference.
I would give the starter about a 60% chance it is the problem.
They slow down over time and you don't realize how slow it is cranking the engine till you install a new one.