V70r will not start when hot

V70r carbon · Post by **V70r carbon** » 17 Jul 2018, 00:26

After a ride on the highway for a couple of hours or an hour or so in city traffic, if I turn of the car it wont start again even when getting a boost. I need to let it cool off for an hour and a half before it will start. I changed the temp sender under the thermostat but that didn't change anything. Anyone got an idea

Post by **abscate** » 17 Jul 2018, 04:11

Start with some diagnostic stuff in the no start condition.

Fuel pressure at the rail, with a gauge, is where I Would start.

Does it crank merrily or drag? Good battery is crucial on P2cars

Post by **mrbrian200** » 17 Jul 2018, 07:21

It would be easier if you can get a look at an OBD tool with live data. Heat soak issues can affect just about anything... Hall effect sensors can stop working, injectors might get stuck open (flooding the engine), a bad relay might stop working...

Without diagnostic information, or at least a highly detailed account of how it acts while trying to start it, its just a stab in the dark trying to guess what it might be.

Post by **oragex** » 17 Jul 2018, 07:33

viewtopic.php?f=9&t=85919&start=10

viewtopic.php?f=9&t=58219&start=10