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1991 Jeep Wrangler

Question: Engine turns won't start

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Rondacker, 2.5L 4 Cylinder, Elizabethtown, NY, February 12, 2009, 04:29

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Lot of miles but has been running fine. A couple weeks ago temp hit -37F one night. Since then the engine will turn over but won't start. Antifreeze was good for temp, replaced battery, air filter and cleaned plugs. If it sits for a couple days it will almost start but that's it.

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• Answer #1

  hemicuda February 12, 2009, 13:07
  

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  Make sure the inside of your distributor cap does not have condensation inside because it will try to fire multiple cylinders at once, Cap and Rotors are fairly inexpensive maybe just change them to be sure.
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  Visitor, October 12, 2010, 10:14

  i have a 91 2.5 also with the same prob. only every time it hits below 50 degrees out side i have to leave the ignition on untill the check engine light compleatly comes on. then the fuel pump will engauge and then i can start it.what causes this problem?
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• Answer #2

  Visitor, January 20, 2011, 11:34

  I live in Northern Minnesota and this is a frequent problem. Could be as simple as having water in your gas. If you frequently let the tank run down to empty condensation builds up in the tank. In the cold winter months this turns to ice. I use Iso-Heet once a month to prevent this. I only use it during the winter months. When your vehicle doesn't start just put it in tank and let it sit for awhile and it will evaporate the water in your tank.
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