My truck idles up and down when I turn on the defrost
Saturday, November 13th, 2010 AT 10:20 PM
2 Replies
WRENCHTECH
MECHANIC
20,761 POSTS
It automatically idles up when the A/C compressor engages. With the defroster on, the A/C compressor would be cycling on and off causing that so it's normal.
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Saturday, November 13th, 2010 AT 10:40 PM
AARONWOLFF
MEMBER
2 POSTS
The truck is stalling, the idle goes up and down and then stalls. Not normal.