No Gas Pedal Response-Car Will Not Move

pmassey31545
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No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Mon Jul 03, 2017 6:27 pm

OK. My wife was driving home last night and shortly after leaving the store the wrench light came on and went into limp mode. She immediately pulled over and went to my sisters house. I went to check the car and when I got there it started up with no issues or lights. I drove it home and decided that I probably needed to clean the ground wires and terminals. I had a similar issue a while back and it was a loose ground wire.

So I took all the grounds under the engine off, cleaned em and put em back. Went to start the car and noticed the wrench light is back on as well as the MIL light. I still put in in reverse and it seemed fine at first. When I shifted to drive it wouldn't respond to the throttle and would just barely move. No difference in reverse. I drove it around my driveway (maybe 2/10 a mile) and it would lunge/lurch a time or 2.

I parked it and scanned the codes and I also cleaned the throttle body. Still, no difference. Gonna get into more tomorrow, but in the meantime...any ideas? I know one of the first suggestions will be to make sure the ground are good and tight because that was my last work. I have checked and double checked them. Cleaned the battery terminal and clamp. Only ground I didn't clean was the main ground (if anyone can tell me where it attaches that would save me some time hunting).

I'm at a loss for why it just out of nowhere crapped out. We LOVE the car and just got it in April. Whatcha'll think is wrong? Screenshot attached of codes.

EDIT: Also just notice the P0942 code. Could be trans issue. But again, I'm thinking a grounding issue overall.
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Last edited by pmassey31545 on Thu Jul 06, 2017 10:12 am, edited 1 time in total.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

Merkur63
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Re: I'm Lost-Car Will Barely Move

Post by Merkur63 » Mon Jul 03, 2017 9:10 pm

When this happened on my 05 it ended up being the throttle body. I had already cleaned it after going through the surge thing and that was at 160,000 miles or so. A Little trick: when the throttle won't respond tap the plastic cover on the throttle body with the end of a wrench, I used a 6" adjustable and then re-start. Worked for me until I bought a TB off eBay. Also had a dealer reflash after TB installation. Right now the car is at 204000 mi. and cylinder 4 hasn't enough compression to fire. The end of the line for mine.

pmassey31545
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Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Tue Jul 04, 2017 4:16 am

Well...crap. Haven't had a single issue with it. I reckon it could make sense that it has had the wrench light come on a few other times leading up to this.

Just seems odd that it was running fine on the trip home then I took all the grounds off (and broke it obviously) and now it don't work at all.

Does the wrench light come on when the throttle body acts up?
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

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mmsstar
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Re: I'm Lost-Car Will Barely Move

Post by mmsstar » Tue Jul 04, 2017 7:27 am

"Does the wrench light come on when the throttle body acts up?"

Yes!
Drove an 06 LTD FWD from July 08 to August 10, moved on to a 2011 Flex

pmassey31545
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Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Tue Jul 04, 2017 7:41 am

mmsstar wrote:"Does the wrench light come on when the throttle body acts up?"

Yes!
OK. Well maybe that's my 'root cause'.

On another note...when I was cleaning the ground connections I didn't disconnect the negative (or POS) battery cables. Did I or could I have torn up something by doing so? I'm sure I 'could have', but it seems unlikely.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Tue Jul 04, 2017 7:45 am

I sound like such a noob...but electrical is my weak point. No doubt.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Tue Jul 04, 2017 12:21 pm

So. Cleaned the throttle body and put everything back together. Pics show throttle body and the link is to a video of how it behaves.

It is very hard to start and when it finally starts there is pretty much no reaction to the gas pedal being pressed. I'm done for the day. It is stinking hot. May get on it again tonight or tomorrow.

EDIT: Was looking through some stuff and found this....

Here’s a post on how to CLEAN A FORD ELECTRONIC THROTTLE BODY

Here’s the throttle body relearn procedure
Clear the PCM adaptive memory

1) Disconnect the negative battery terminal.

2) Run a jumper wire from the positive battery cable to the now disconnected negative battery cable terminal. NOTE. Do this with the negative cable DISCONNECTED from the battery. The short circuit you’re creating here is designed to drain all power from the capacitors inside the PCM. Leave the jumper connected for about 2-mins.

3) Reconnect the negative battery cable to the battery.

Turn off all electrical accessories before proceeding. Turn off headlights, blower motor, radio, wipers, etc.

4) Turn the key to run and wait for all warning lights to turn off. During the period the PCM will command the throttle body plate to sweep from full open to full close to “learn” the new positions.

5) Start the engine and let it idle for a full 10-mins until it reaches full operating temperature. During this period the idle may be higher than normal. It should slowly drop as the engine heats up. Watch the engine temp gauge and note when it reaches operating temp. Then continue to let it idle for an additional 5 minutes. It will continue to adjust idle during this period.

6) Drive the vehicle at various speed so the PCM learns shift points.

Gonna see if mine does the SWEEP tonight. If it doesn't, would that indicate a bad TB?
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Throttle body
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2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Posts: 178
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Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Tue Jul 04, 2017 6:40 pm

2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Posts: 178
Joined: Sat Feb 18, 2017 7:23 am

Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Tue Jul 04, 2017 8:49 pm

Ok. I know I'm talking a lot to myself here, but....

Tried the throttle relearn procedure and no difference. When the car ISN'T running, the throttle reacts to the gas pedal. By that I mean I used a mirror and can see the butterfly open and close in sync with the pedal actions.

When the car IS running, the throttle does not react at all. Or it moves from 14.5% to 16% at most...then back to 14% or so and stays there. It idles just fine.

My CVT fluid seems like it may be a little low. Could this be a fail safe feature that causes the owner not to damage the CVT? As in the car will not move if there isn't enough fluid/pressure in the CVT system?

I'm just spitballing at this point since I am completely out of ideas short of replacing the throttle body or taking to the dealer...and I don't want to do either one.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Posts: 178
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Re: I'm Lost-Car Will Barely Move

Post by pmassey31545 » Thu Jul 06, 2017 10:11 am

So. Stopped by Autozone last night and ordered a new throttle body. Still not totally convinced that is the issue...but I will know sometime this evening if it fixes it. Will update.

Also, figured I'd rename the thread topic to help with any future searches.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Posts: 178
Joined: Sat Feb 18, 2017 7:23 am

Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Thu Jul 06, 2017 6:32 pm

Well...it ain't the throttle body.

Still open to ideas. Again, could the CVT fluid, pressure, filter be causing it to stay in limp mode? I'm gonna top off the fluid tomorrow. Will report back.

Check engine light is off btw.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Posts: 178
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Fri Jul 07, 2017 9:11 pm

And here I am again.

Topped off the CVT fluid today just to see if there was some kind of level interlock causing the issue. Doesn't seem to be the case but the owners manual does mention a level and pressure interlock.

So tomorrow I aim to change the CVT fluid and high pressure filter. Or at a minimum drain the fluid and look at the filters just to see. I've always been able to hear the solenoids in the CVT 'clicking' pretty good and they seem to be awful quiet since all this started.

Anyway...will report back.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Sat Jul 08, 2017 7:29 am

So. Drained my CVT fluid and it looks pretty dirty. More black than tan or brownish.

I also got 7 quarts out. That's pulling the pan and filter as well. Headed to town shorty to get fluid and filterS. Both of them.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

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mmsstar
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Re: No Gas Pedal Response-Car Will Not Move

Post by mmsstar » Sat Jul 08, 2017 9:40 am

The throttle body is a drive by wire system. The receiver is the throttle body, the sender is the gas pedal. You might want to check that.
Drove an 06 LTD FWD from July 08 to August 10, moved on to a 2011 Flex

pmassey31545
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Re: No Gas Pedal Response-Car Will Not Move

Post by pmassey31545 » Sun Jul 09, 2017 7:36 pm

mmsstar wrote:The throttle body is a drive by wire system. The receiver is the throttle body, the sender is the gas pedal. You might want to check that.
Well...when the car isn't running the butterfly responds to the gas pedal position accordingly.

The only time the throttle.has NO response is when the car is RUNNING.
2007 Limited AWD
2002 F150 Lariat Supercrew, 2005 Kawasaki 1500 Classic, 1999 Toyota Camry, 2010 VW Routan

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