What is the reason for engine retreat while driving?
I drive Hyundai avante automatic gear with lean burn system on the engine.
while driving on steady speed, things are ok. But if I slow down a bit and try to accelerate again, it takes long time and RPM starts jumping up and down. I have noticed also that when I start AC while engine is idle, RPM keeps jumping between 700 - 300. Same happens when I put gear on drive if I keep pressing the brake
Any lights lit up on the dash? Sounds like a vacuum leak or a dirty throttle body or an issue with the idle control valve. When was the last time you check the spark plugs and ignition components? Change your filters?
Search Hyundai Elantra Questions
Hyundai Elantra Experts