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2,109 Posts
Discussion Starter · #1 ·
When i start the 5.0 in my 89 lincoln it goes starts right up, rev's to over 1,000 rpm then falls back to zero and stalls. After startinging again it may stall again or or not. It has never stalled over 3 times before the engine starts running decent.

I cleared the trouble codes and checked them again and got codes

12 Idle Speed Control (ISC) Motor or Air Bypass Not Controlling Idle Properly (Generally Slow Idle)
13 Normal Idle Out At Range (Usually Too High)

Anyone have a clue where to start?
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