I just took off and cleaned the Idle Air Control Valve on my 87 NA. The test drive started off with a perfect idle (including with the AC on), but quickly went south. The car started stalling every time it hit neutral unless my foot was on the accelerator. When I got back to place, I found coolant all over the motor by the IAC. (I lost a lot of coolant.) The hoses look tight. Am I missing something? Any suggestions?

 

Nevermind ... I found the problem.

 

what was the problem...???

 

The coolant problem was a bent clamp connecting the hose to the ACV. It looked good when I inspected it and was definitely not loose, but the bend was enough to leak coolant. I fixed the leak by getting a screw clamp and really fastening it on there.

I however did not fix the stalling problem. The car will not hold idle unless the accelerator is pressed. The car idles fine for the first few minutes then stalls. It looked fixed, but I apparently spoke too soon.

 

Check for an air leak in the intake system or an unplugged AFM.