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Alright... I have another 88 F-250 with the 7.3 and the C-6. (I know.. I should have stuck to just one but now I have 3 !!) Anyhow, I use this one for beating around the farm. Doesn't really see any road time. I have constantly had a problem with the batteries going dead and I have yet to find the issue there. Tried all the tricks to find the draw but I have had no luck. Now, I cannot get the truck to turn over hardly at all. It will spin but VERY slowly. As for new parts and things I have tried:
2 new 1200cca batteries
Alternator (Orielly's)
2/0 cables EVERYWHERE (Interstate Battery)
voltage regulator (Napa)
starter (Mits)
solenoid (Napa)
checked all of the connections and grounds.
new ignition switch (Napa)
Today I took the starter back off and swapped it for another new one and it does the same thing. Even when I have the truck on the charger or jump it off of my Pete, it still BARELY spins at all.
Hopefully someone can shed some light on this for me because I am stumped. I've been through every wire, connection, and electrical component that I can think of.
Thanks,
Troy
Last edited by bigblu78; Nov 29, 2007 at 05:55 PM.
No. The batteries won't go dead if they are diconnected although even when the batteries are fully charged, about 10 sec of cranking will deplete them. This was the same problem I had before I replaced the batteries. I did remove the two previous batteries, took them to Interstate Battery and had them tested. Both tested good but I replaced them anyway. (I am using the old batteries in my skidsteer with no issues at all.) I still have the same problem with the new batteries. Is there a "normal" amount of draw that should occur when cranking? If so what is the best way to test the system?