please help
Thread Starter
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Freshman User
Joined: Dec 2007
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please help
All... i wrote yesterday about my f250 7.3 starting hard. I was told to check the gp relay. I just checked a relay. It was the one towards the rear of the motor. There was one in front of it and i didn't check that one. The one i checked read 12.8 volts on the hot side and when i turned the key, the other large post read 10.8 volts. Is the relay bad? Any help, please? thanks, Jeff
Thread Starter
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Freshman User
Joined: Dec 2007
Posts: 44
Likes: 0
Thanks guys... i just tested both poles of the relay. When the key is off, the hot side of the relay reads 12.8 volts. So do both batteries. When the key is on, the hot side of the relay reads 11.8 and the other post reads 11.0. I replaced both batteries about 1 1/2 years ago. 200 for two batteries is plenty!!! When the truck is running, both batteries read 13.2 volts. Now what?????
