Car not starting after sitting overnight

Hi, thanks. But I think I have got you a bit confused. Car starts but has trouble if the car has sat over night and started the next day seems that it has trouble idling on its own with out my applying pressure to acceleration. There is no overheating, drives well. Maybe be a fuel pump relay or fuel pump itself. Could that be the cause of fuel not delivering to engine correctly without it stalling? When cars running but turned off and left for a hour or so cars fine its start no problem.

Hi, thanks for your reply. It seems that when I go to start car up on a cold start and turn key ignition it feels that the car wont start without me putting foot down on acceleration and giving it some gas to help it get running smoothly but just turning key on without giving it some gas it then has trouble and starts to stall. It should be able to start without having to apply gas pedal for revs to idle, but when started it drives smoothly no miss or stalling when driving. Checked water that's fine. Have not checked for codes yet as I don't have a reading mechanism. Any other ideas? Please help.

Hi Joe, thanks for the reply and some useful information. I'm leaning towards the option of maybe what you said about the coolant temperature sensor. I happen to have checked my coolant and radiator and it seemed very low in both coolant reservoir and radiator and I have noticed a increase of fuel consumption. When driving but no engine light or high reading of temperature gauge. But like you said this problem sends false readings to computer and can give idling problems. I have had a car scanning but no codes come up to tell me of any problems I have clean throttle body still no difference. But will take your advice and try replacing to temperature sensor. Then a fuel pressure check as I do not have a fuel pressure checking gauge. Thanks for your useful info will let you no the outcome in new future.

Thanks, Ray

Hi Joe, just wondering if the fuel pressure is low does that mean it could be the fuel pump that could be failing? I have put a coolant temperature sensor in and it seems to still stall and flood at times. Any ideas please?

Hi, I changed the throttle position sensor now the car starts first pop. But acceleration is slow and seems to surge when driving but idle seems okay. What's going on? I'm lost for words and very tired of trying to get this right. Could this be the relearned process that I have failed in doing to make these problems occur? Please help.

Hi, surging when driving idle higher than usual high consumption of coolant. Using more gas than usual. Still have to apply gas pedal for it to start after cranking a few times checked for vacuum leaks all okay. Any more ideas?

Hi there,

No, I don't have any of those indications of a blown head gasket in the video. I'm starting to think maybe a mass air flow sensor because I'm not losing coolant dramatically. And the indications of the idle and surging and cranking it over whilst giving it gas makes me think it could be a air flow sensor problem. What do you think about that? Does any of those symptoms go towards the diagnostic?