Hi guys,
Since a few weeks, I notice an idle problem on my 92' K1500 Suburban . TBI350 engine works fine as long as I drive more than 1500rpm, but each time I slow down, the idle becomes erratic and oftenly stops. What could it be ? Any idea ? Thanks in advance Rgds Phil
Idle Air Control Valve?
Throttle position sensor?
One rare circumstatnce I ran into on a 91 GMC Sierra .... Three loose screws on the top of the throttle body? Perhaps anpther vacuum leak somewhere else?
Well, thanks for your inputs!
Maybe I could be more accurate ! The idle is fine (or close to) when the car is not running, but erratic when the car runs at low speed / low rpm. Moreover, the engine works fine as long as I push the accelerator and idle only starts to be erratic when decelerating under 1500 rpm.
If this can help you to help me! Rgds Phil
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