Starting issues NEED HELP PLEASE
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Starting issues NEED HELP PLEASE
My 2010 has an issue of not starting and or acting dead. I have replaced the battery starter and ignition switch. Still acting up. Mostly first thing in the morning. Once it has been running for a bit it's fine. Very confusing. Please help!!!!
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New User
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In the morning if the truck has sat for 6 plus hours I will turn the key and nothing. No clicking, nothing. Brand new battery, starter, ignition switch. The when I put jumper cables on it starts right up. Doesn’t have to charge up or anything. Won’t do it again for a few weeks, then will randomly happen again. Temperature does not seem to be the issue.
Hotshot
Joined: Jan 2004
Posts: 19,760
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From: St Louis
Probably a bad battery connection or cable. Start by cleaning the battery and cable terminals. If the battery terminals have been replaced by aftermarket terminals and they are painted, throw them away and either get some high quality ones made of brass or replace the whole cable.
Fleet Owner
Joined: Apr 2008
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From: 0,0,1
After that 6-hour period when the starter won't turn does everything else work, like dash lights, headlights, blower motor, wipers, etc.?
Fleet Mechanic
Joined: Jan 2009
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From: Fort Worth
A quick way to check if it's a poor termination at the battery is to take voltage measurements across the battery posts, the terminals, then at the bare copper you see where the terminals are crimped to the cables. These should all be about the same, but if you see 12.5 volts at the battery and only 8 at the copper or terminal, you have a bad termination.
As stated above, you should also check the grounds for cleanliness and torque. If corroded or loose, clean and torque the terminal appropriately.
While running, take voltage readings again as stated in the first paragraph. What is the voltage when idling? Have someone hold the engine speed at 3,000 rpms; what is the voltage?
Most importantly, stop throwing parts at it until you know what's wrong with it. Parts swapping is expensive. Grab a meter and get to troubleshooting. It's not a very complicated system so problems are usually pretty easy to nail down.
As stated above, you should also check the grounds for cleanliness and torque. If corroded or loose, clean and torque the terminal appropriately.
While running, take voltage readings again as stated in the first paragraph. What is the voltage when idling? Have someone hold the engine speed at 3,000 rpms; what is the voltage?
Most importantly, stop throwing parts at it until you know what's wrong with it. Parts swapping is expensive. Grab a meter and get to troubleshooting. It's not a very complicated system so problems are usually pretty easy to nail down.
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