Question about 2003 Hyundai Santa Fe

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Car wont idle or shut off when key is turned off

We got repo car from a friend which had several things wrong with it. after fixing everything that was suggested wrong it has one hopefully last prob. the other day my daughter drove it to the gas station and after getting gas she went to start the car and it would crank over but wouldnt idle. This has happend several time. It also sometimes wont shut off when she is stopped and the key is taken out of the ignition. She drove the car home from a long trip last weekend and when she got to our street the car died out of the blue. Does anyone have any suggestions?

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The ignition switch is bad. you need to change it.

Posted on Jul 13, 2009


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the problem is with ur key I recomend go to the dealer with you title they going see the vin number they make original key .

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I own a 2000 Jaguar S-type 3.0 and it won't shut off. I turn on the car and when I turn the key to shut it off it will stay running, I can even take the key out of the ignition and drive the car. Does...

There is a phenomenon is called ''Dieseling'' and can have
several causes.

Basically there is some alternate source of ignition apart
from the spark.

This could be glowing carbon deposits, a sharp thin edge of
metal glowing, using a poor(low octane) fuel. too much
methanol in the fuel, wrong heat range spark plugs and
several others.

This used to be quite common with carburated motors however
with fuel injection and ignition off there should have been
no fuel entering the cylinder so it should not have been
able to not run on.

I would conclude that although the key was removed the the
ignition and fuel injection systems were still energized.

Things to check or have fixed.
1) timing
2) motor running (Idling) to fast
3) the motor may be ruining rich (stuck choke )
4) over heating
all of the above can cause run on..It might need a tune up
if it happens again here's a couple of things you can do to kill (stop) the motor.
1) if its an automatic leave it in gear when you shut it off the extra pull on it well stop the motor.
2) if its a manual transmission put it in gear and let the clutch out with your foot on the brake and it well stop the motor..

get it to a repair shop asap..

good luck

Mar 31, 2010 | 2000 Jaguar S-Type

1 Answer

99 plymoth voyager wouldnt shut off with key then white smoke

There could be several reasons, here's a list of the most common things it could be.
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  3. incorrect spark plug heat range
  4. intake air vacuum leak
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There are 3 things that should be checked.
The idle air control valve (some call it a fuel bypass valve)
Throttle position sensor
and a fuel pressure test done. The idle air control is usually mounted on the throttle body, so is the tps which has a black plastic casing. good luck.

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You are going to have to have you ignition tumbler replaced. (Talk about insult to injury!) It sounds like Repo-man slammed in a new tumbler to snatch your rex and didn't quite get it in right.
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