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-   -   My car won't turn off? (https://mustangforums.com/forum/classic-mustangs-tech/308277-my-car-wont-turn-off.html)

JJ68Mustang Jun 24, 2007 03:36 AM

My car won't turn off?
 
After I turn the key off, the engine keeps turning over... poorly, but turning over nonetheless. It does it a couple of times then decides to die... any idea what's going on?

mat11089 Jun 24, 2007 03:38 AM

RE: My car won't turn off?
 
Timing is off....

67mustang302 Jun 24, 2007 03:41 AM

RE: My car won't turn off?
 
Yeah, it's called deiseling, and it's usually caused by too much ignition timing

mat11089 Jun 24, 2007 03:45 AM

RE: My car won't turn off?
 
Yep getting a timing light on it and either go from there or let us kno what shes at.

JJ68Mustang Jun 24, 2007 03:51 AM

RE: My car won't turn off?
 
That makes sense, I have a timing light, and I know how to use it! Thanks guys!

superdavid Jun 24, 2007 04:32 AM

RE: My car won't turn off?
 
Its not the timing. When the ignition is off, there is absolutely ZERO spark still going down the wires. Your carb is probably idling too high, or running rich. Most likely the idle.

JMD Jun 24, 2007 12:13 PM

RE: My car won't turn off?
 

ORIGINAL: superdavid

Its not the timing. When the ignition is off, there is absolutely ZERO spark still going down the wires. Your carb is probably idling too high, or running rich. Most likely the idle.
+ 1,

And sometimes engines with compression ratios aproaching the upper limits for the pump gas being used will diesel. Sometimes engines can develop "hot spots" in the cumbustion chamber, sometimes these hot spots can be eliminated by using a "colder" sparkplug.


JJ68Mustang Jun 25, 2007 04:13 AM

RE: My car won't turn off?
 
hmm... alright, I have some things to tinker with then... I'll see what I can do and get back to you... Thanks again!


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