Car won't keepidel1989 300e Car won't keep idel, starts up runs for a while but cutsoff

Hi Shane, I'm glad to help!

Shane, I'm not there to do a diagnosis but it sound like you may have a rocker arm that may have came off. You can pull the valve cover off the side where the noise is and see if that has happened. Not sure, but you need to start somewhere right. Hope this helps and have an awesome day Shane.

cant figure out your post at all !
"When my car will not start it only growls & never roars/never turns over."
it either cranks robustly nor not
then and only the can it start, run
cranks
starts
runs
or maybe stalls
the dealer can fix it , if you demo it and it works.
its not broken then.
if it cranks correctly every time ,say so
that is a failed engine start.
if engine stalls, say so.
if rpm on the engine is real low, too low, say so.

the word turns over means nothing, Im sorry
1/2 say, it means cranking
other 1/2 means its running,
the order is
cranks, starts, runs , and keeps running or stalls.
btw if it stalls, its needs a tuneup'
get one in last decade, (sparks filters)
my guess growls is starter sounds
so if it starter works try cranking with throttle wide open
this is super secret unflood mod. it cuts fuel and clears flooding.
Good engines that fail to start are
bad spark plugs
flooding
starving for fuel.
we discount them 1 by one until. bingo

If the resistor bypass doesn't solve it, another remedy could be a plug-in type engine block heater- I mean plug into household current. It keeps the engine coolant warm in the block. Every other car here in Montana uses one-works great for those below zero nights. When the wife pulls into work, just run an extension line and keep the car plugged in till time to go. Other than that, IDK, sounds like you've covered it pretty well as far as solutions.

Interesting.
When it stalls and won't start, are you missing spark to the plugs or fuel to the injectors ?

When it won't start someone will need to find out if you are dealing with a no-spark or no-fuel problem to proceed.
If the check engine light is on you should get the computer scanned for trouble codes.

I would need more info to give any advice.
I assume you mean the blower for the ac and heater.
How is it not working but works on high ?
And what power are you turning off that makes it blow harder ?

If it is a 3.8 engine change the crank sensor,they go bad on the 3.8 engines.

try locking your car with the key and unlocking it with the key, leave it for 30 second or so between the locking and unlocking , the car thinks some one has tampered with it

sound like it could low fuel presser. or clogged fuel filer. so start by changing filter then check fuel presser.

Get the battery & the alternator checked (Autozone, O'reilly's or even Pep Boys can do that for free). If the alternator is out or going out, it's not charging your battery - that means everything electrical in your car is now trying to run directly off the battery & draining it (it doesn't take long - especially if the lights or A/C is on). If those check out ok, take it into a mechanic & have them run a diagnostic - you may have a relay out. Good Luck.