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My 1996 corolla cranks, but will not start unless it is above freezing. However, above 40F it starts and runs great, no issues at all.

Already I have replaced the spark plugs, wires, checked the distributor cap. Also put in a new air filter for what it is worth. I pulled the valve cover, the timing belt looks great. Drove it 300 miles yesterday (nice 60F degree day) not a single issue.

Edit: I also replaced the fuel pump.

Edit 2: I also replaced the engine coolant temperature sensor (suggested elsewhere). No effect. As soon as the outside temperature is in the 30's cannot get it started. Above 40F it starts on the first turn. PLEASE help 😉

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    When it cranks, does it sound normal? How old is your battery? – David Watson Mar 18 at 14:50
  • Thanks for the question. The battery is just over 3 years old. Holds a charge great. I can crank for a good long while on cold days 😉 I have even supplemented it with a boost pack to rule out low battery juice as an option. When cranking starter sounds normal. It is almost as if it just cannot make combustion happen. I failed to mention earlier that I also replaced the fuel pump to rule that out as well. – user46649 Mar 18 at 17:21
  • Does the car have an ODB connector? If so, what fault codes are stored? – David Mar 22 at 21:15
  • @david yes it does. No fault codes. – user46649 Mar 22 at 21:26
  • Is your climate at all damp? On a below 40F night, open the hood and have a friend crank the starter. Can you see sparkles on the distributor cap? If so, I'd suspect that very small (read: invisible in daylight) cracks in the cap are shorting the HT to ground. – David Mar 24 at 17:00

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