07 GT changed battery and now it dies on start up

maxxedout

Member
Sep 10, 2014
64
1
8
55
Installed new battery and now its fine for cold start but after warming up I come to a stop and it drops to 400 - 500 RPM. Sometimes it catchs itself and ups up to normal idle and other times it dies. If I stop at a gas station and restart it will immediately rev to 2000 and back to 4 or 5 then die. Iys a manual if it helps...
 
  • Sponsors(?)


StangNet created a new car social app called knowmoto! Add your Mustang or post a photo in the knowmoto app and enter for a chance at a $100 gift card from LMR. Click the LMR Logo for more about the knowmoto Mega Thread!

Bullitt95

10 Year Member
Jun 13, 2007
1,615
72
79
Cyprus
www.angelfire.com
You need to perform the idle relearn procedure whenever you disconnect or replace the battery. Let the engine idle from a cold start until it reaches normal operating temperature. Then turn on the AC to max for two minutes, allow the engine to idle for a further two minutes with the AC off, and you're done.