I have a 2006 Mustang GT and I had the unsteady idling/almost stalling problem that some of you are talking about. This is the second time this has happened to me and it was the same problem...the throttle body. They replaced the throttle body and that fixed the problem. However, when I asked why they had a new throttle body in stock for a GT, they said that the GT uses the same throttle body as the V6.

(I am in Korea and they don't sell GTs in Korea, only V6s. Ususally they have to order parts for my GT.)

So is this true? The GT and V6 use the same throttle body?

 

I don't think so. V6 TB's have a square body with a single round opening and GT's are oval shaped with 2 openings.