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"Powertrain malfunction indicator" (wrench light)

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Old 03-07-2011, 08:59 PM   #1
Worktofish
Eastern Washington
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"Powertrain malfunction indicator" (wrench light)

I have a 2006 4.0L 4x4 Explorer that just lit up the "powertrain malfunction indicator" (wrench light) on the dash.

I bought this vehicle over 4 years ago, and it has always hesitated when cold, (similar to a cold, carbureted engine for those of you who remember those...). It runs fine after.

However, today after starting it cold, it hesitated, then shimmied, and then the powertrain malfunction indicator came on. I drove it 4 miles home, but it had shifting issues.

I was planning on having it towed to the dealer, however, after reading another post, I see that it can be intermittent. Sure enough, I just went back out and started the vehicle - no light!

Any ideas what this means???
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Old 03-08-2011, 05:41 AM   #2
swetrid
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You need the trouble codes from pcm to help diagnose.




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Old 03-08-2011, 06:11 AM   #3
PEAR0119
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I had the same sorta issue with my 06. I was driving down the highway and all of a sudden it hesitated and shimmied then the wrench light came on. I pulled over, turned the car off then back on and everything was OK until the next day. It eventually got so bad that I couldn't even drive the car and it finally threw a MIL light that stayed on.

When I read the codes it threw a "Throttle stuck open" and "Forced idle" codes. I can't remember the exact code number. So, I brought it to Ford and they replaced the TPS sensor on the throttle body as it was throwing "erratic voltage" codes when they read them. Been driving daily for 5 months since and have had no issues.

My issue was intermittent but since the wrench light turned off every time the car was turned off, I would of gotten the runaround from Ford. Once the MIL light stayed on I then brought it to Ford and they replaced the TPS sensor under warranty.




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Old 03-08-2011, 06:16 AM   #4
PEAR0119
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I found them. I was getting:

P2104 Throttle Actuator Control System - Forced Idle
P2111 Throttle Actuator Control System - Stuck Open

My best guess would be the TPS as your symptoms sound very similar to mine.




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Old 03-08-2011, 08:19 AM   #5
Worktofish
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Yes, that sounds very similar. I'll pull the codes and see what I get.

It ran fine this morning on my short drive to the gym and back. I'll pull the codes tonight.

Thanks for the information, I was having fears that the transmission was toast.
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Old 03-08-2011, 01:19 PM   #6
PEAR0119
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Mine ran fine somedays and others was a complete nightmare. My first reaction was that the trans was toast too. Once I read the codes I knew it was the TPS and Ford confirmed it for me. I was relieved to say the least.




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Old 03-11-2011, 10:45 PM   #7
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Any recommendations for a code reader? I was shocked to see the cheapest one for $60, and up to $250. I'm old school. The only way I ever read codes was to count the sweeps on a voltmeter. Can that still be done?

Also, I haven't had any problems since the original, but I'll see if I can get the codes off this weekend.
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Old 03-12-2011, 12:16 AM   #8
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Quote:
Originally Posted by Worktofish View Post
Any recommendations for a code reader? I was shocked to see the cheapest one for $60, and up to $250. I'm old school. The only way I ever read codes was to count the sweeps on a voltmeter. Can that still be done?

Also, I haven't had any problems since the original, but I'll see if I can get the codes off this weekend.
You should be able to get the codes read at your local auto parts store for free. Around here AutoZone and Advance Auto Parts do it for free and give you a print out of the results.




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Old 03-16-2011, 01:50 PM   #9
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Quote:
Originally Posted by Worktofish View Post
I have a 2006 4.0L 4x4 Explorer that just lit up the "powertrain malfunction indicator" (wrench light) on the dash.

I bought this vehicle over 4 years ago, and it has always hesitated when cold, (similar to a cold, carbureted engine for those of you who remember those...). It runs fine after.

However, today after starting it cold, it hesitated, then shimmied, and then the powertrain malfunction indicator came on. I drove it 4 miles home, but it had shifting issues.

I was planning on having it towed to the dealer, however, after reading another post, I see that it can be intermittent. Sure enough, I just went back out and started the vehicle - no light!

Any ideas what this means???
Worktofish,

This is Seni with Ford Customer Service. I am sorry your Explorer is not performing to your expectation. We recommend that your vehicle be inspected by a Ford dealership to determine the cause of any symptoms your vehicle may be experiencing. If there is no coverage under applicable warranties, recalls, or ESPs, repairs and services would be your responsibility. As you mentioned, the problem may be intermittent, but that doesn’t mean it’s not a problem. Your next step is to make an appointment with your servicing dealership to have your vehicle diagnosed. Please PM me if further assistance is needed. Thank you.

Seni




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Old 03-18-2011, 01:15 AM   #10
DavidEBSmith
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Any recommendations for a code reader? I was shocked to see the cheapest one for $60, and up to $250.
Like the next poster said, you can get it done for free at many auto parts stores; I have a basic Actron code reader like this one that's $50 and it works fine.

http://shop.advanceautoparts.com/web...T|GRP2018_____
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Old 03-29-2011, 03:05 PM   #11
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I had the same problem with my 06 4.0L. It started off very intermittently, but over a year or so it got worse and worse. Pulled codes and there were 3. They were related to the TPS. There is an updated throttle body assembly that comes with the TPS. Replaced that and all has been good for about a year now. Seems to be a pretty common problem on these. I've heard of people going through 2 or 3 before they get a good one. Good Luck!

Mike
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