GMC S15 Engine Idle Low

My 1994 Gmc S-15 Jimmy Will Not Idle Properly When In Park....it Surges From 700-1500. If I Put It Into Gear It Settes Down Significantly. I...

Truck Went Dead And Will Now Only Crank If You Pump The Gas Pedal And Will Not Idle It Seem To Be Flooding Out. Have Replaced Fuel Filter...

Engine Problem 1987 Gmc S15 V6 Two Wheel Drive Automatic 160000 Miles When You Slowly Rev The Engine It Dies Down And Cuts Off Had...

1985 Gmc S15 6 Cyl Two Wheel Drive Automatic My 85 Gmc S15 Pickup Idles Just A Little Too Low.. Am I Able To Adjust This? If So How? Or...