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Its a 1979 J-10 with a 360 automatic.
The situation is complicated, so I apologize for all the details, but here it is:
I ran the truck about 30 minutes before this happened and got it up to temp. It was running very smoothly at the time. I turned the truck off and worked on a couple non-related things, then went back to restart the truck.
When I started the truck 30 minutes later, I did not realize the accelerator pedal had caught on the floor mat and was at about 90% throttle. The truck immediately caught and revved very high for about 3-5 seconds before I could turn it off. It turned off seemingly normally (i.e. no loud bang, smoke, etc.) I immediately tried to restart and is just clicked like the battery was dead. I hooked it up to jumper cables and it made a loud grinding/clunking/banging noise and would not start. The noise was much louder and more violent than a normal clack of a starter with a low battery. After a few grinding/clunking/clacking attempts, it again just clicked. At this point I was certain I'd either catastrophically damaged the engine, or the starter was malfunctioning. I took the battery out and hooked it up to a charger for a couple hours. After charging, I measured the voltage on the battery to be 13.8 volts. I reinstalled the battery and got only a click. I tapped the starter with a hammer a few times and still just got a click. I have not had the starter tested.
The battery is only about a year old and has hardly been used at all. I have not yet had it tested. I did recently replace the alternator because it was draining the battery and I suspect that I still have some electrical drains on the battery that I need to chase down. So the battery has been on and off the charger several times over the past month because it seems to always be dead (I only get to work on the truck on the weekends, so it has a full week to discharge).
Why would the battery, that was sufficiently charged, and had successfully started the engine seconds before (the throttle surge event), not be able to even turn the engine over seconds later? Would the engine surge event cause a rapid battery discharge?
Thanks.
The situation is complicated, so I apologize for all the details, but here it is:
I ran the truck about 30 minutes before this happened and got it up to temp. It was running very smoothly at the time. I turned the truck off and worked on a couple non-related things, then went back to restart the truck.
When I started the truck 30 minutes later, I did not realize the accelerator pedal had caught on the floor mat and was at about 90% throttle. The truck immediately caught and revved very high for about 3-5 seconds before I could turn it off. It turned off seemingly normally (i.e. no loud bang, smoke, etc.) I immediately tried to restart and is just clicked like the battery was dead. I hooked it up to jumper cables and it made a loud grinding/clunking/banging noise and would not start. The noise was much louder and more violent than a normal clack of a starter with a low battery. After a few grinding/clunking/clacking attempts, it again just clicked. At this point I was certain I'd either catastrophically damaged the engine, or the starter was malfunctioning. I took the battery out and hooked it up to a charger for a couple hours. After charging, I measured the voltage on the battery to be 13.8 volts. I reinstalled the battery and got only a click. I tapped the starter with a hammer a few times and still just got a click. I have not had the starter tested.
The battery is only about a year old and has hardly been used at all. I have not yet had it tested. I did recently replace the alternator because it was draining the battery and I suspect that I still have some electrical drains on the battery that I need to chase down. So the battery has been on and off the charger several times over the past month because it seems to always be dead (I only get to work on the truck on the weekends, so it has a full week to discharge).
Why would the battery, that was sufficiently charged, and had successfully started the engine seconds before (the throttle surge event), not be able to even turn the engine over seconds later? Would the engine surge event cause a rapid battery discharge?
Thanks.
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