01 Escape, V6 4WD has a very rough idle from surging. Typical lean codes exist as well as a low voltage code, which I belive will go away when the idle problem is fixed. The lights dim when the idle surges down.
What are typical vacuum leak points? It is most affected by the cold weather and sometimes the problem goes away when the car is warmed up.
On two seperate occasions, the car has had no power brakes first thing on a cold morning leading me to theorize that perhaps the booster is bad or its checkvalve is bad. Are the boosters common to fail? What other vacuum items could leak?
Fuel economy is down a little.