Starting engine hesitation and Re-starting?
Thread Starter
Instructor
Joined: Jun 2017
Posts: 164
Likes: 19
Starting engine hesitation and Re-starting?
I have one that occasionally hesitates when starting. What I mean, sometimes when I go to start the car, but remote start or inside the car, the motor starts to crank and wants to turn over then stops and tries restarting again.This happens 2-3 times and then the engine fires and all is good.
Anyone heard or experienced this before? It'd be the equivalent of turning the key to start a normal car and right before it fires you quickly turn it off and try again. I've tried getting videos but every time I do it doesn't happen.
Anyone heard or experienced this before? It'd be the equivalent of turning the key to start a normal car and right before it fires you quickly turn it off and try again. I've tried getting videos but every time I do it doesn't happen.
Last edited by zeps7784; Dec 14, 2022 at 05:30 PM.
Instructor
Joined: Apr 2018
Posts: 102
Likes: 22
I know on my 2014 base it sometimes requires 1-1.5 seconds of cranking before it will fire. These engines have a high pressure fuel pump (>2000 psi I hear) and takes a few revolutions of the motor before it builds enough pressure. There's also a low pressure fuel pump that delivers fuel to the HPFP from the tank, and I think that one maintains some pressure even when the car is off.
Full tank of gas? Hot start or cold start?
Full tank of gas? Hot start or cold start?
Le Mans Master
Joined: May 2000
Posts: 8,729
Likes: 1,508
From: Redmond WA
It shouldn't happen often, but there are limits on how long it will crank and I've seen it once where (I guess) the high pressure pump couldn't bring pressure up in time so it took two attempts.
If it's anything more than a very rare occasion, however, I'd suspect your pump is leaking, possible internally.
May I suggest you check your engine oil level to ensure it does not read OVER full?
If it's anything more than a very rare occasion, however, I'd suspect your pump is leaking, possible internally.
May I suggest you check your engine oil level to ensure it does not read OVER full?
