High idle on a cold start

Tiny
901SHORTY
  • MEMBER
  • 2000 MERCEDES BENZ ML320
  • 130,000 MILES
High idle on a cold start. What would that be? It also hesitate when it shifts when this happens. Only for a minute.
Sunday, October 21st, 2012 AT 5:40 PM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
During cold start, the idle would be higher as the system is programmed to work thus. How high are we talking about?
Have you checked for trouble codes? Did you check the transmission fluid level and condition?
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Sunday, October 21st, 2012 AT 5:56 PM

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