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Ot mechanics work car having intermittent starting problems

Posted on 10/6/18 at 10:39 pm
Posted by Fusaichi Pegasus
Meh He Co
Member since Oct 2010
14567 posts
Posted on 10/6/18 at 10:39 pm
3mo old batter
After driving to work in the morning, sitting in the garage all day car will slow start when leaving work, will eventually crank.
All other times, fires up no problem
Cleaned air filter, MAF sensor
Fuel pressure regulator, spark plugs?
Posted by PrivatePublic
Member since Nov 2012
17848 posts
Posted on 10/6/18 at 10:42 pm to
Starter going down
Posted by Fusaichi Pegasus
Meh He Co
Member since Oct 2010
14567 posts
Posted on 10/6/18 at 10:53 pm to
no clicking though
Posted by Havoc
Member since Nov 2015
28429 posts
Posted on 10/6/18 at 10:55 pm to
Check inside of battery cable terminals. I’ve had where corrosion can get in there enough to cause sporadic problems but hard to see at a glance.
Posted by Spankum
Miss-sippi
Member since Jan 2007
56043 posts
Posted on 10/6/18 at 11:05 pm to
Sounds like a starter problem to me...
Posted by LSU Delts
Louisiana
Member since Dec 2007
2548 posts
Posted on 10/6/18 at 11:17 pm to
Had a similar problem with one of my vehicles. It ended up being the fuel pump. The dealer told me how to check.
The way to check is to turn the key but don’t start. The fuel pump should begin to pressure up the line. I could hear mine with no radio on. Do this twice then crank. If it continues to start all the time from doing that then it’s the fuel pump. They replaced mine and never had an issue again.
Could also be the bendix spring in the starter.
Check your battery cables on both ends also.
Posted by keakar
Member since Jan 2017
30043 posts
Posted on 10/6/18 at 11:21 pm to
starter problem or the main battery cables are bad

to test the battery cables, disconnect the battery, then use a good set of jumper cables on the battery direct to the lugs without the clamps in the way, then connect the ground directly to the engine on a good secure clean ground location, then connect the positive jumper cable directly to the alternator main wire mounting bolt

if its still dragging and the battery isnt weak, then its a bad starter about to go out

the good news is if its the starter it most likely just needs the brushes replaced to make it like new again. most brands make a replacement kit for the starter brushes, because they wear out like brake pads over time
Posted by TheAstroTiger
Member since Jun 2018
3101 posts
Posted on 10/6/18 at 11:24 pm to
With the limited information it could be:

-starter going bad
-terminals going bad
-something dirty that you forgot

I say drive it till it breaks then worry about it.
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 10/6/18 at 11:27 pm to
Do you have a multimeter?
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5525 posts
Posted on 10/7/18 at 3:19 am to
Sounds like a fuel pump issue.
Posted by BHM
Member since Jun 2012
3155 posts
Posted on 10/7/18 at 5:39 am to
(no message)
Posted by BHM
Member since Jun 2012
3155 posts
Posted on 10/7/18 at 5:48 am to
quote:

car will slow start 


Please further explain slow start. Is the engine spinning over slow or is it spinning fine but takes a while to actually start running.

Since you cleaned/questions things unrelated to turning the engine over, I will assume the latter. Fuel pump getting ask if had check valve. As mentioned, cycle the key a couple of times before starting.

Could also be a leaking fuel injector that is dripping fuel into a cylinder cause a rough start. Do you smell raw fuel or overly rich exhaust when it starts?

How many miles? What kind of vehicle? There are a lot of things on vehicles that can cause conditions. The more you can observe, the better chance of a quick resolution especially with an intermittent problem.


Posted by RCA
Member since Aug 2018
419 posts
Posted on 10/7/18 at 6:45 am to
Just for the frick of it, maker sure all your relays and fuses are fully seated. Probably not the issue, but it will take about two minutes to do.
Posted by Cracker
in a box
Member since Nov 2009
17718 posts
Posted on 10/7/18 at 7:05 am to
Bad armature on starter
Posted by Chuker
St George, Louisiana
Member since Nov 2015
7544 posts
Posted on 10/7/18 at 7:20 am to
quote:


Please further explain slow start. Is the engine spinning over slow or is it spinning fine but takes a while to actually start running



There's no point in pontificating until OP answers this question.
Posted by Macfly
BR & DS
Member since Jan 2016
8087 posts
Posted on 10/7/18 at 7:22 am to
Make, model, engine would help because there are make & model specific problems.
e.g., battery connection, battery itself, starter, ignition switch (not likely), neutral safety switch (not likely)
Posted by Tyga Woods
South Central Jupiter Island, FL
Member since Sep 2016
30139 posts
Posted on 10/7/18 at 7:49 am to
Could be a bad battery. Had this happen to me twice with new batteries. Go ahead and have it checked before spending any money.
Posted by Cotten
Tennessee
Member since Jan 2018
1260 posts
Posted on 10/7/18 at 7:49 am to
Make/Model?

I had a Colorado that had a similar problem, turned out to be the passlock module.
Posted by UASports23
Member since Nov 2009
24350 posts
Posted on 10/7/18 at 8:09 am to
Let this be a warning to folks who don't use fuel system cleaner.
Posted by soccerfüt
Location: A Series of Tubes
Member since May 2013
65723 posts
Posted on 10/7/18 at 8:54 am to
quote:

3mo old batter
I hope you rot in hell beating on an infant.
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