99GT Auto Vert Problem.
 

Greetings to all.. </P>


My girlfriends mustang has an odd problem. It is random, but always noticeable when it happens.</P>


Start the car and let it idle for a bit to warm up. Drop it into any gear and sometimes, the car will lurch forward or backwards (depending on the gear). It will rev up just a bit, and then jump with out hitting the gas. As a matter of fact, if you do not have your foot firmly planted on the brake, you will lurch about 8 feet. </P>


At first I was thinking it would be something like an Idle air control valve, but now I am just confused. Any thoughts?</P>


Much appreciation,</P>


-Lildrgn</P>

99GT Auto Vert Problem.
 

IAC, check the throttle to make sure it isn't getting stuck open at all...</P>


If none of that is the culprit, sounds like it could have something to do with the tranny. </P>