Bought a used 2000 F350 7.3 in 2013. Love it but now having some battery issues now.
Bought 1 new battery, 850/1000 in December and replace the second battery in April. Parts store house brand. In May, it started cranking slow.
Did I buy enough battery?
Parts store tested 3 times and said the batteries were fine. Went O'Reilly for a second opinion.
They said the batteries both showed only 25% life. He also said my regulator "didn't snap instantly but snapped fast enough he didn't think that was the problem." Alternator output was fine.
Long story short, the parts house replaced them both 2 weeks ago. Still cranking slow, better but still slow.
The thrilling part is that if the truck sits for more than 24 hours, it dang near won't start.
I am not a mechanic, don't know much about these engines however, what little I do know makes me think the following:
A) Sitting over 24 hours, the HPOP is draining down to zero pressure.
B) The engine is not turning fastest enough to build pressure and start quickly.
I drained the water off the filter, don't know if there was any there or not but it had been a while.
I changed oil because it was about due anyway.
Filled the fuel tank with fresh fuel.
Not dripping any oil, nothing on the manifold behind the HPOP.
Fittings on HPOP are dusty but nothing dripping there either.
I am ready to go to the Ford dealer and buy Motorcraft batteries, prolly should have gone there in the first place.
Bought 1 new battery, 850/1000 in December and replace the second battery in April. Parts store house brand. In May, it started cranking slow.
Did I buy enough battery?
Parts store tested 3 times and said the batteries were fine. Went O'Reilly for a second opinion.
They said the batteries both showed only 25% life. He also said my regulator "didn't snap instantly but snapped fast enough he didn't think that was the problem." Alternator output was fine.
Long story short, the parts house replaced them both 2 weeks ago. Still cranking slow, better but still slow.
The thrilling part is that if the truck sits for more than 24 hours, it dang near won't start.
I am not a mechanic, don't know much about these engines however, what little I do know makes me think the following:
A) Sitting over 24 hours, the HPOP is draining down to zero pressure.
B) The engine is not turning fastest enough to build pressure and start quickly.
I drained the water off the filter, don't know if there was any there or not but it had been a while.
I changed oil because it was about due anyway.
Filled the fuel tank with fresh fuel.
Not dripping any oil, nothing on the manifold behind the HPOP.
Fittings on HPOP are dusty but nothing dripping there either.
I am ready to go to the Ford dealer and buy Motorcraft batteries, prolly should have gone there in the first place.