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re: Ot mechanics work car having intermittent starting problems

Posted on 10/7/18 at 9:18 am to
Posted by airfernando
Member since Oct 2015
15248 posts
Posted on 10/7/18 at 9:18 am to
You have corroded connections. May look fine, but it's not. May also have failing alternator. Heat in the daytime is draining some of the battery. Not much but just enough. Clean connections at battery, alternator, and starter. Also slow charge battery all night.

Everyone should keep this tool in each vehicle.



Posted by Fusaichi Pegasus
Meh He Co
Member since Oct 2010
14572 posts
Posted on 10/7/18 at 9:42 am to
quote:

spinning fine but takes a while to actually start running

And it only does this in the evenings, all other times cranks no problem.
First crank in the morning, no problem.
Posted by Fusaichi Pegasus
Meh He Co
Member since Oct 2010
14572 posts
Posted on 10/7/18 at 9:43 am to
quote:

fuel system cleaner

I have recently
Posted by Fusaichi Pegasus
Meh He Co
Member since Oct 2010
14572 posts
Posted on 10/7/18 at 9:57 am to
No battery corrosion
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 10/7/18 at 10:00 am to
Your OP says it does it after sitting at work all day. If it does it when sitting for extended periods, check the battery with a multimeter. Report back

As you can tell, it can be a number of things. Start from the easiest, and eliminate until you get to the hardest.
Posted by Fusaichi Pegasus
Meh He Co
Member since Oct 2010
14572 posts
Posted on 10/7/18 at 10:01 am to
It could sit for 2 days and crank just fine first thing in the morning
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 10/7/18 at 10:12 am to
What noise does it make?


Eta: I wanted to guess it was fuel pressure related, but it would do that overnight, not throughout the day. It certainly wouldn't hold pressure for two days
This post was edited on 10/7/18 at 11:16 am
Posted by Chuker
St George, Louisiana
Member since Nov 2015
7544 posts
Posted on 10/7/18 at 10:22 am to
quote:

spinning fine but takes a while to actually start running And it only does this in the evenings, all other times cranks no problem. First crank in the morning, no problem.



The good thing is you can almost certainly eliminate the problem being battery/starter. The bad thing is that your problem will be hard to diagnose as the culprit could be many things. Its even hard for a mechanic to fix if when you take it to a shop and it doesn't act up.

You may just have to wait it out until the problem gets worse so it can be traced.

Shitty answer I know but its a shitty problem to have.
This post was edited on 10/7/18 at 10:34 am
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