Need Help with a problem Oppo

"OkCars- 22k Crossroads" (okcars)
08/09/2014 at 00:39 • Filed to: None

My car seems to have trouble staring but only in the first time of the day that i turn it on . (its been like this for a week)
The weather is 30 C, so cold weather isn't the problem, The starter hears that it does its work as it should, but it has to crank more time than usual (Today it was 2 sec). Once it was on, i turned it off after 5 seconds and tried again, and this time it turned on instantly.

DISCUSSION (18)

Zipppy, Mazdurp builder, Probeski owner and former ricerboy > OkCars- 22k Crossroads
08/09/2014 at 00:45

I'd say check the ignition system, Spark plugs, Fuel, or it could even be timing.

Denver Is Stuck In The 90s > OkCars- 22k Crossroads
08/09/2014 at 00:47

are you using a crank start or is this a more modern car. while the image is cool, it would be nice for some clarification

Denver Is Stuck In The 90s > Zipppy, Mazdurp builder, Probeski owner and former ricerboy
08/09/2014 at 00:48

You got the escape! And I was thinking that maybe the fuel pump wasnt letting in enough fuel, causing the engine to need to be primed

 V8 Rustler > OkCars- 22k Crossroads
08/09/2014 at 00:51

Intake Air Temperature sensor?

Zipppy, Mazdurp builder, Probeski owner and former ricerboy > V8 Rustler
08/09/2014 at 01:03

Or maybe even this could the the issue.

JGrabowMSt > OkCars- 22k Crossroads
08/09/2014 at 01:03

Check the battery voltage.

Cold cranking amps could be pretty low depending on age. You can have autozone or advanced auto test it for free.

If not the battery, then spark coil, plug wires, plugs.

E92M3 > OkCars- 22k Crossroads
08/09/2014 at 01:25

What make/model is it? Sounds like it's taking a little longer to prime the fuel system. I had a car once that would do that, but take up to 30 seconds if it sat overnight. The fuel pump shutoff valve wasn't closing, and allowed fuel to leak back into the tank. When your pump isnt running theres a valve thats supposed to close to keep fuel in the lines and injectors so it will be there the next time you crank the engine. If it doesn't close all the way your fuel system leaks down and loses pressure, requiring extra time to build pressure again. Try turning the ignition to the on position, back to off, and then crank it. That will give the fuel pump an extra cycle to prime.

Denver Is Stuck In The 90s > E92M3
08/09/2014 at 01:45

That was my hypothesis exactly. Or he owns the car in the photo and he has to put more oomph into his crank starting.

Twingo Tamer - About to descend into project car hell. > OkCars- 22k Crossroads
08/09/2014 at 05:07

Is it a diesel? On certain diesel cars (like mine) the starter motor isn't quite good enough to turn over such a high compression engine. That means it can take a few cranks after a night of sitting because if the battery condition isn't perfect it's not strong enough to start it.

OkCars- 22k Crossroads > E92M3
08/09/2014 at 07:03

it is a 2008 4.0 rustang. Very few miles... well km. 24,700. I think this is what could be happening. Because the starter and the battery work perfect. Once it starts the first time of the day. It starts EZ.

OkCars- 22k Crossroads > Twingo Tamer - About to descend into project car hell.
08/09/2014 at 07:05

petrol engine 4.0 cologne from the rustang

OkCars- 22k Crossroads > JGrabowMSt
08/09/2014 at 07:07

the problem must be in the spark coil or plugs because the starter cranks good but the engine wont run immideately.

OkCars- 22k Crossroads > Denver Is Stuck In The 90s
08/09/2014 at 07:11

'08 4.0 mustang.

I think the problem is what E92m3 said right?

Because battery and starter work fine. The issue is that they take time to make the engine run alone.

Twingo Tamer - About to descend into project car hell. > OkCars- 22k Crossroads
08/09/2014 at 07:11

Sounds like the fuel pump priming then as other have said. Try changing the fuel filter.

E92M3 > OkCars- 22k Crossroads
08/09/2014 at 08:50

Yeah thats how mine was. It only did it if the car sat for several hours. It could also be a leaky injector allowing the system to lose pressure.

thebigbossyboss > OkCars- 22k Crossroads
08/09/2014 at 15:21

I believe it to be the starter motor actually. I had a car once it hesitated a little on two starts, then after that the starter motor died.

OkCars- 22k Crossroads > Twingo Tamer - About to descend into project car hell.
08/09/2014 at 15:43

I will. it has never been changed

Twingo Tamer - About to descend into project car hell. > OkCars- 22k Crossroads
08/09/2014 at 15:46

That reminds me, my fuel filter could really do with changing too...