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Truck sat in gartage for 1 and half years battery obviously dead changed battery get lights but wont crank

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  • sseilers98 Aug 06, 2008

    I have a 2006 Chevy Silverado with the 6.0 engine in it. It has 34,000 on it and all of sudden the battery went dead. The truck sat for three days while was house boating. When I returned to the truck, I noticed that the auto door locks where not working. I unlocked the truck and tried to start it. Everything was dead. I used a trickel charger and started the truck about 15 minutes after hooking up the trickel charger. Drove the truck home ( about a two hour drive) and parked it. I noticed on the way home the amp guage was showing a slight discharge. Got in the truck the next day and the battery was dead again. Jumped started it ok, but think there might be some sort of short, electrical problem or maybe a alternator issue.

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There's many things that can deteriorate on a car after it has sat for that long of a time. I would change the oil, look at the coolant in the radiator and possibly change that if it looks bad. Check all of the rubber hoses and make sure they aren't cracked or dried out. The rings and seals inside the engine may be dried and stuck as well and all of this work that I'm suggesting be in vain. Good Luck!

Posted on Jul 15, 2008

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Two possibilities:
1. the starting motor/solenoid is stuck;
2. engine internals frozen.

To try and check/correct:
a. temporarily hardwire the starting solenoid direct to the + terminal of the battery. often the starting solenoid would have two wires, one very big that goes to the battery's B+ terminal and one smaller that goes to the IGN switch. Momentary touching the wire to the + terminal & smaller solenoid wire connector should engage the solenoid and turn the starter motor.
b. try to manual turnover the engine. Use an appropriately sized socket and power wrench. Fit the socket to the big nut on the lower front crankshaft pulley and turn. There would be resistance but it should turn. if not, the insides may be frozen. You can try removing the valve cover and apply engine oil direct to the camshafts assembly. Additionally, you can try removing all the sparkplugs and pouring a bit of diesel fuel. The purpose of both is to apply lubrication to the moving parts.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Jul 15, 2008


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