2001 won't start...

i dug around here & read tapping on the starter may work... well didn't work for me

batteries read 12V with multimeter & ignition off... lift pump will cycle but the vp doesn't sound like it is running... all i get is a small grown from under the hood along with clickity, clickity, clickity, clickity until the volt guage hits 8

 

Almost sounds like dirty battery cables, not grounding properly. There should be no noise from Injection pump.

 

The cables were my first thought as well.

 

HOw old are the batteries?

 

Had same issue. Pull the cables, use a battery cleaner, and a terminal brush, and get those terminal rings (red/green protector ones). Install rings, reinstall cables (pound em down good.. terminals are tapered) and ensure tight.

I had chance to have the hood up and started the truck while doing my fogs, and when it went to start, it sparked up a good one on the positive terminal. Thus, not good contact. Poor contact leads to not enough current available to go to the starter = no start.

Fresh batteries help too, but only to a point.

 

More accurate measuring , full batteries should be 12.6-7 , should not drop below 10.5-11 , especially if the started is not turning over , a load test on the hole system is in order , alt. , starter and batteries .
Besides the above , it can be connections to all .

 

thanks for the replies

i jumped it with the wifes car & had to get a jump at work as well, so i ended up getting new batteries... fired right up this morning @ 25*F

the bolts have a bit of corrosion on them, is there an easy way to replace? i though i read somewhere (or maybe i was dreaming) that the ends unscrew to replace

 

Which bolts are you referring to ?
If they come out [ or not , use blast , soak for a day ] put back together with anti seize .