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1997 Quest randomly hiccups when warmed up
OK, the car exhaust comes out CLEAN, the motor runs SUPER SMOOTH, plenty of power. but when the car's warmed up to normal temperature... *hiccup*....*hic-hiccup*... the tachometer shows a sudden, drop in engine speed, and the hiccup goes away as fast as it came. it hiccups even more when I put the A/C on. the whole car shakes like the all the electronics wants to die and then suddenly come back online. it feels like i'm getting chinese water drip tortured!! ARGH, and it's embarassing! no check engine light. i take very good care of the car and always give it chevron. if it wasn't for that hiccup, you'd think you're driving a new van right off the lot. there's no mickey mouse work under the hood, it's clean. i was thinking it could be a bad ground somewhere, but i'm bad at guessing. This could be a very helpful discussion to many people, your input is appreciated. -Jovan