slow to start (sometime)
Elder User
Joined: Aug 2005
Posts: 763
Likes: 0
From: Dallas, Texas
One of your batteries is on it's way to Vegas. Did you load test them indevidually? (not in series)
I have had this happen before, and currently it is happening again. Indevidual load test shows that the passenger battery is really.....really weak.
I have had this happen before, and currently it is happening again. Indevidual load test shows that the passenger battery is really.....really weak.
Lead Driver
Joined: Oct 2004
Posts: 7,413
Likes: 1
From: Columbia, MO
Originally Posted by shad
harvey,,,,, i've already thought of the HPOP being low of oil,, would the low pressure pump be the problem with only 57,000 well maintained miles.
I tested the batterys with my Snapon battery tester
I tested the batterys with my Snapon battery tester
Before you do that though, you can remove the sensor and look down in the resivoir before first start to be sure it is full of oil.
If you didn't do it already, try what Dan suggested, and load test the batteries individually.
Senior User
Joined: Apr 2005
Posts: 186
Likes: 0
From: houston, texas
when i replaced my starter the truck started up like it was brand new. now after 3 months, its a lot slower to start up. how can i get my truck to start up like it was brand new? also when i replaced the batteries the truck started up quick too, then gradually started more slowly.
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Junior User
Joined: Oct 2003
Posts: 69
Likes: 0
got in it this morning , crank crank and no start. changed the batterys and it started right up. felt really great that problem was solved. BUT,,, about 3 hours later while driving in town started loosing power, missing. DASS me, realized aux. tank in bed was empty, switched to main tank. it never died but after 10 miles still misses, shakes the whole truck sometimes. any ideas ???
Post Fiend
Joined: Jun 2006
Posts: 5,497
Likes: 7
From: Central, Al
Trash in bottom of tank (now in fuel filter) or air in the lines (should work itsself out) maybe.
If tach is dropping suddenly when it "misses" kinda points back to CPS'ish issue
If tach is dropping suddenly when it "misses" kinda points back to CPS'ish issue
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Post Fiend
Joined: Jun 2006
Posts: 5,497
Likes: 7
From: Central, Al
I cant prove it but after getting up close and personnal trying to learn the electrics of the powerstroke I believe that other than just a weak battery draining the good one a short at the cell level of one battery can cause a ground loop and really cause havoc with the computer control systems. A cell level short can be very hard to find and diagnose as sometimes the only indication being a slight drop in amperage output depending on the health of the other cells.
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Junior User
Joined: Oct 2003
Posts: 69
Likes: 0
yes ,,, changing the batterys did it . did a load test after both batt disconected 1 batt checked 12+ volts, 1 checked 6+ volts. this load test was done after 18 hours with out being started and 2 long cranking trys.