2004 Pontiac Bonneville Will not start when hot. After driving 100 miles or so when I get back into the car it does not start

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Idle air control ! Ford IAC Test stalling problems Ford GM Chrysler there all the same ! How does it idle out of gear , smooth or ruff !

piece of black tape to cover the light :) and drive the car till its done and if the light is not affecting anything then don't worry about it

i think your starter moter has gone or your battery is week also your spark plugs might need replacing check all these things

Hi,
If you start out with a cold engine, the Bonneville should not overheat traveling one mile, with out the A/C on.
If you are in stop and go traffic, roll your windows down, turn heater on high temp and high fan, and shut the Bonneville off at stop lights.
Watch the heat gauge.
The coolant fans not working may be a fuse, relay, or temperature sending unit switch.
Best Wishes,
Wayne

My 2000 Bonneville did the exact same thing. It's the mass flow air sensor I'm almost 100% sure this is what your problem is.

First thing to do is replace you fuel filter, If there is a check engine light have the code read, Most parts store will do this for free. Get the code number type that into google for further advise.

it might be the coils are getting hot and cutting out on you till they cool, try getting them checked .

do you fill the gas tank with the key on?

Try disconnecting the battery for 1/2 hour an then reconnect and drive for 10 miles. It may run rough for this period. This will clear codes from memory.

my olds did this it needed new injectors u can have it diagnose at dealer for like $ 75-90