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2005 Saturn Ion Car will not start when it gets cold

Tiny
DANDOBRANDO
  • MEMBER
  • 2005 SATURN ION
  • 4 CYL
  • FWD
  • MANUAL
  • 57,000 MILES
The car will not start (will not turn over - not a sound) when the outside temperature hits near or below freezing. Battery is strong. However, after the morning sun warms the car a few degrees, it starts like normal. I've been using a small electrical unit heater to heat the interior of the car (placing it just under the dash) in the morning. I run the heater for about 20 minutes and the car starts right up. Apparently, there is something in the ignition system that isn't making contact when the temperature drops to a certain point.
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Friday, November 28th, 2008 AT 10:04 PM

1 Reply

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

Thank you for the donation,

I would start with doing a continuity test on the ignition switch (crank circuit) in the switch loom only this will have to be done cold, and may be set up the evening before so nothing will be disturbed in the morning, just have it so you have to turn on the multi meter and turn the key to crank, if you have continuity there I would be doing the same thing at the loom plug for the switch, checking for corroded or loose pin connectors, try this first.

Mark (mhpautos)
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Saturday, November 29th, 2008 AT 4:09 AM

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