Greetings,
My 1997 ZJ will not idle when cold.
It happened 2 weeks ago and we cleaned the battery terminals, checked grounds, and it all seemed good. After the cleaning truck ran fine. it has about 75,000 miles on it an i take good care of it.
But this morning it was about 37 degrees, and it wont idle unless you run it at about 1500 RPM.
After warming up , engine would idle normally. Have checked the alternator voltage, no codes appear other than the 55 code.
Any pointer appreciated, regards,
james