1999 wont start

[blinn]

I’ve got an odd thing going on. My 1999 has been sitting for about a month, tried to move it today and the ignition just clicks. Put a charger on it all day and battery tests fine. When I turn the ignition I get a click and then nothing, even the dome light goes out. If I pull a battery lead off and back on I get power again but as soon as I turn the key it happens again, click and the dead, no power. The other odd thing is a couple times I hear this click click click noise from the rear seat door panel area - no idea what that could be!!

All ideas welcome,
Brian


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[OCDTech]

Load test the battery Make sure it will supply amperage. Clean the terminals. Follow the ground wire to where it connects to the engine or frame, clean it.

https://www.harborfreight.com/100-amp-612v-battery-load-tester-61747.html

 

[blinn]

Exactly what I did this evening. Battery load tested fine. Terminals cleaned an tightened. Same result. I think tomorrow I’ll pick up a new set of terminals and replace them just to make sure.


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[OCDTech]

Do a voltage drop test, from positive terminal to positive connection on starter. May read 12, but when a helper turns the key see if it drops out. Could be a bad area in the positive wire going down there. If it was the solenoid i wouldn't think the lights would dim or go out. This is a sign your losing power to all other systems in the truck, narrowing your search.

 

[JohnnyMac]

After sitting for a month, there is also a chance the starter motor is froze up and when you try to start it, it loads down the entire power system and (among other things) messes up the ECU. When you pull the battery post and put it back on, the ECU resets and is fine. Until you do it again. Not sure about the clicking behind the seat. My 2000's anti-lock brake pump would make a couple funny noises when I turned the key. Good luck and please pass what you find. I'm curious.

 

[OCDTech]

After sitting for a month, there is also a chance the starter motor is froze up and when you try to start it, it loads down the entire power system and (among other things) messes up the ECU. When you pull the battery post and put it back on, the ECU resets and is fine. Until you do it again. Not sure about the clicking behind the seat. My 2000's anti-lock brake pump would make a couple funny noises when I turned the key. Good luck and please pass what you find. I'm curious.

This is great advise. Also curious.


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[Andrew Belser]

you can always try to jump the starter relay. If the starter wont turn when you jump it then it could have a dead spot. If it does turn, then it could be your cables.

 

[blinn]

Finally had time t9 get to an auto parts shop today. Cut both ground and positive battery clamps off. Stripped the wires to get good copper and clapped on new terminals. Started on the second crank [emoji16]
Thanks everyone


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