Question about 2002 Hyundai XG350
The engine either shuts off or runs very low rpm with a chugging sound when the brake pedal is pressed. I found out recently that if I hold in the button on the brake light switch when the brake pedal is pressed in the engine isn't affected. I changed the switch to see if it was specifically the problem but it didn't fix it.
Posted by Anonymous on
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Posted on Jan 02, 2017
Yoou most likely have a vacuum leak in the line from the booster to the intake. It could be a bad booster or check valve as well.
Posted on Jun 04, 2009
When I had this same problem...it was the Catalytic Converter...cost about 200 to get it fixed at the Hyundai Dearlership :)
Posted on Apr 01, 2010
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