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Bought a new battery a couple of months ago. I greased the terminals to prevent corrosion. I may drive my vette once every two weeks but I do pull it out of the garage about four times a week do to a single car garage and I am working on other stuff. About a week ago I started the car and moved it outside. It sat outside for a couple of hours and when I started it up it clicked like the battery was dead. I turned the key again and it started right up. Since then everytime it sits for a couple of hours it does this but when I turn the key a second time it starts right up. Whats wrong, have I got a grounding problem? I checked to make sure the terminals were tight. Thinks in advance.
Sounds like it. More so on the neg terminal not a good connection. When you say grease the terminals, are you talking dielectric grease? Otherwise that may be your problem.
Why not just clean the terminals both ends now, and use the treated felt rings?
If you feel like the battery is good and the terminals are tight and clean, you probably have a bad starter motor. They can become very intermittent causing random no start and then just be fine. I lived with that condition for months, checked everything relays connections and all. When it kraped out did not have time to work on it or it corrected itself before I could get everything hooked up to make my tests. Finally changed the starter, all problems gone. Really knew it was the starter but did not want to beleive it, worked most of the time. Even tought space looks tight, it turned out to be an easy change out.
I used a silicone dielectric grease. Terminals are torqued but not to specs, torqued as tight as I can get them with a pair of vice grips. Previous owner had already rounded heads off. I just hate taking that side cover off. Thanks for everyones help. I am going to tear into it Saturday. I will post what I found.
If you are talking about the bolts on the battery terminal being rounded out, they are replaceable with out replacing the entire battery cable. The bolt (stud) just pulls right out, go to dealer and get the right one, your done - do it right. A new starter will come with new nuts so your good there. Also, This is a great time to change the fuel filter. MUCH easier to get at with the starter removed.