VAN REVS HIGH WHEN AMBIENT AIR TEMPERATURE FALLS BELOW 40 DEGREES FARENHEIT.
1993 Mazda MPV
Elmer Van Dyk
October, 17, 2011 AT 4:03 AM
1993 Mpv van surges on start up and does not come off high idle when ambient air temperature falls below 40 degrees farenheit. We drove the van for approximately 5 hours and it still would not idle down. If the van idles for an extended period of time, it will eventually idle down. Approximately 30 minutes. As soon as you start to move, it goes back to high idle. I have changed the coolant temperature sensor. The van does get up to operating temperature. Any help would be appreciated.