2009 Mustang v6 - no throttle body response - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 2 Old 11-30-2013, 07:03 PM Thread Starter
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2009 Mustang v6 - no throttle body response

My 2009 Ford Mustang, does not have throttle response at all, this happened after I changed my clutch out, and had the battery disconnected for 4 days.

Test drove the car after the clutch and got it up to 80MPH and ran fine, however at idle, it acted abnormal, this got worse as I let it idle, it even shut off once on its own while idling.

Tried to check the Throttle Body unit, to make sure it wasn't full of gunk, and it wasn't however at the time I did that, I took apart the Throttle Body Motor and it looked fine nevertheless, I proceeded to disconnect the battery and once i connected it again the Throttle was non existent.

Car now idles even worse.

I had a mechanic look at it and he said that since i took apart the TB I had to replace it and he would have to reprogram it.

Any other options? Can I reprogram my current one, or do I really have to replace it just because i took it apart. The mechanic refused to try to reprogram the current one, any other way to test it?

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post #2 of 2 Old 12-01-2013, 01:44 AM
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You can test the tb, but you'll need another person to help.
Remove the inlet tube so you can see into the TB. Have someone inside turn on the key (not starting it, just turning on the ignition). It should be open very slightly, almost closed.
Have the person inside press on the throttle, from rest all the way though wide-open; the tb should open more as the pedal is pressed, eventually to full open (90*) when floored. Listen for the motor movement (or trying to move) as the pedal position changed.
If that is not happening, you most likely have a throttle body control issue or a pedal issue.

Taking it apart, you have to be careful not to mis-align the control motor with the internal gearing.
And of course, re-connect the two connectors, one on each side of the tb.

Lastly, retuning will not solve your problem.
You should be getting a Check Engine light, too. If so, read the codes and it'll tell you more.
If the throttle is opening properly and you have no check engine light, check the vacuum hoses around the back of the engine and brake booster, to make sure nothing is left disconnected; you could have a vacuum leak.


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