Have Ford Questions? Ask a Mechanic for Answers ASAP
Hello and thank you for your questionYour Thunderbird has an electronic throttle body and one very common thing that can cause it to fail after having the battery go dead can be caused by sludge build up in the throttle body and once the battery die the computer will loose the closed throttle values and cause it to go into linp mode. Before you consider replacing the Throttle body, try disconnecting the negative battery cable and then take some carb cleaner and a soft cloth and give the throttle body and throttle plate a good cleaning. After doing so, reconnect the cable and start the engine and allow it to idle for 15 to 20 minutes to let the computer re-learn the closed throttle values. In most cases if the throttle body has not failed this will usually correct the problem your having. Give it a try and post back if you have more questions and or need more help.
Sure thing , Im here if you need me.
When it went into limp mode where you able to scan the computer and see what the fault code and or codes where that should have set?
Can you get it scanned and lets see what the fault code and or codes are that are setting. Most auto part stores will do this for you at no charge.
If you can get me the fault codes I can help you determine the cause.
Post back when you have them and we can work from there.