1993 Ford Taurus

1993 FORD TAURUS
86,000 MILES • 6 CYL • FWD • AUTOMATIC
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YONTU
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  • 1 POST
I have a 1993 ford Taurus 6 cylinders
The problem I am having is that the car wont start over night
if it has rained or when is humid outside.
And one's I jump start it, it starts ok. throughout the day
Thanks for the answer
Apr 6, 2009 at 11:15 AM
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JGAROFALO
  • CAR REPAIR CONTRIBUTOR
  • 489 POSTS
A bit of diagnosis is in order - unless you just want to throw parts at it until it is fixed...

Is it hard to start because it turns over slowly? That might indicate a problem with the starter, battery, or starting circuit. Low voltage when cranking can also cause a loss of spark or fuel pressure. The electronics need a minimum voltage to function correctly.

Once you have verified that it is cranking at the proper speed and voltage (minimum 10 volts at cranking), you may proceed to checking fuel and spark. Check for spark using an inline spark tester. If spark is present, check for the presence of moisture under the distributor cap. Also check fuel pressure.

If spark is not present, check resistance of coil primary winding (at the terminals for the 2-wire connector on the low voltage side). Resistance should be around 5 to 10 ohms (I'm not sure, I have to look this one up).

If the problem has still not been found, I recommend that you replace the ignition module and PIP sensor (also called a pickup coil) inside the distributor.
Apr 6, 2009 at 3:57 PM
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