Strange thing happened today to my 5.0 - Mustang Evolution

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Old 08-24-2013, 04:34 PM   #1
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Question Strange thing happened today to my 5.0

This week my wife used my 5.0, and she stop driving my car late Wednesday. Today (Saturday) I tried to start it, and it did not wanted to, I jump cable it, the engine was stumbling iddling at low rpm's and the check engine (wrench) was on, I began driving the car very slowly (it was like governed), I could not go higher than 2500 rpm, highest speed that I could reach was 20 MPH, I could hear the engine stumbling while driving. driving at that speed felt like eternity, upon my arrival to the FORD dealership, (their first question was if my car was modified, I'm lucky that I have not touched anything on my engine). About 3 hours later they call me, my car was ready, like nothing happened. They ask me if I had drive my car at high speed, I told them no, since my wife drives like a turtle, apparently they only hook it to their computer after a test drive and that was it. What went wrong?
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Old 08-24-2013, 04:50 PM   #2
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If they didn't tell you it's harder for us the figure out what was wrong. No cel was on?
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Old 08-24-2013, 05:20 PM   #3
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This week my wife used my 5.0, and she stop driving my car late Wednesday. Today (Saturday) I tried to start it, and it did not wanted to, I jump cable it, the engine was stumbling iddling at low rpm's and the check engine (wrench) was on, I began driving the car very slowly (it was like governed), I could not go higher than 2500 rpm, highest speed that I could reach was 20 MPH, I could hear the engine stumbling while driving. driving at that speed felt like eternity, upon my arrival to the FORD dealership, (their first question was if my car was modified, I'm lucky that I have not touched anything on my engine). About 3 hours later they call me, my car was ready, like nothing happened. They ask me if I had drive my car at high speed, I told them no, since my wife drives like a turtle, apparently they only hook it to their computer after a test drive and that was it. What went wrong?
Thats weird man. I had a problem like that when my MAF sensor went out on my last car. But i doubt thats the case for yours though.
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Old 08-24-2013, 06:37 PM   #4
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You sure she's a turtle driver without you in it lol? I ont have the 289hp v6 but if I had 400+ hp under me I'd be driver more than a turtle
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Old 08-24-2013, 06:40 PM   #5
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This week my wife used my 5.0, and she stop driving my car late Wednesday. Today (Saturday) I tried to start it, and it did not wanted to, I jump cable it, the engine was stumbling iddling at low rpm's and the check engine (wrench) was on, I began driving the car very slowly (it was like governed), I could not go higher than 2500 rpm, highest speed that I could reach was 20 MPH, I could hear the engine stumbling while driving. driving at that speed felt like eternity, upon my arrival to the FORD dealership, (their first question was if my car was modified, I'm lucky that I have not touched anything on my engine). About 3 hours later they call me, my car was ready, like nothing happened. They ask me if I had drive my car at high speed, I told them no, since my wife drives like a turtle, apparently they only hook it to their computer after a test drive and that was it. What went wrong?
I don't have that kind of problem but I know I still have a starting issue on my 10gt at times and its annoying.but yea the dealership squad everything is fine.autozone hooked it and still nothing but I know something is not rt
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Old 08-24-2013, 06:58 PM   #6
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You could have put it into limp mode jumping it off. You can't just hook two cars together with jumper cables anymore, can fry all sorts of things.
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Old 08-24-2013, 08:38 PM   #7
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In the afternoon it happened again, after starting my car, it began to do the same, I was planing to drive it back home that way, but my kid told me Dad, turn off the key wait (we wait one minute), and then when I crank the car back, the car was great again without any issue (the check engine disappeared). I still have the problem that FORD was not able to detect in my 5.0.
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Old 08-24-2013, 09:29 PM   #8
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In the afternoon it happened again, after starting my car, it began to do the same, I was planing to drive it back home that way, but my kid told me Dad, turn off the key wait (we wait one minute), and then when I crank the car back, the car was great again without any issue (the check engine disappeared). I still have the problem that FORD was not able to detect in my 5.0.
I'd take it to Ford again and push for a real answer - If they don't have one for you, request they work on it again and figure it out. Sorry for your frustration! That'd drive me nuts!!
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Old 08-25-2013, 07:08 AM   #9
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Hi all,

Just to follow up. Last night I went to check my 5.0, on my first try to start it, it behaved like it had an almost dead battery, then I tried to start it again, and it showed the same exact problem that it had before, I did it a third time, car started like nothing was wrong.
Today in the morning I tested again my car, on the first start normal, I did it again and normal.
I will take the 5.0 to FORD on Monday for another checkup, and explain them your suggestions maybe the problem still is there.

Thanks for all your advises, I will keep you posted after FORD finds the problem, just for someone else, if they have the same issue, to be able to solve it fast.
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Old 08-25-2013, 08:33 AM   #10
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Hi all,

Just to follow up. Last night I went to check my 5.0, on my first try to start it, it behaved like it had an almost dead battery, then I tried to start it again, and it showed the same exact problem that it had before, I did it a third time, car started like nothing was wrong.
Today in the morning I tested again my car, on the first start normal, I did it again and normal.
I will take the 5.0 to FORD on Monday for another checkup, and explain them your suggestions maybe the problem still is there.

Thanks for all your advises, I will keep you posted after FORD finds the problem, just for someone else, if they have the same issue, to be able to solve it fast.
Are you getting a diagnostics charge every time you go?
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Old 08-25-2013, 08:48 AM   #11
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No, it was handled as a warranty issue (just went once), but they were not able to find the Gremlin in my 5.0.
I hope that tomorrow they will find the issue, I will not like to loss faith on my GT.
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Old 08-25-2013, 09:51 AM   #12
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No, it was handled as a warranty issue (just went once), but they were not able to find the Gremlin in my 5.0.
I hope that tomorrow they will find the issue, I will not like to loss faith on my GT.
Yes, please do keep us posted. My fingers are crossed they find the problem and get it resolved.
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Old 08-28-2013, 09:29 PM   #13
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Thanks Guys you are the best, I'm debt with you and FORD, after 4 days of work Dealer found the problem, they replaced the throttle body and motor asy. and the battery.
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