Throttle non-responsive after batter disconnect

[wcaswell]

I have a 2006 Winnebago with a Ford 450 platform. It's a v10 gasoline engine. The battery died so I disconnected it and recharged it. After reconnecting, the engine starts fine, but will but rev past 1000 rpm. The throttle is non-responsive.

[MEXICOWANDERER]

" Some pretty darn off the wall, wacky responses.."

AHEM! You forgot "sarcastic"

When I read about this stuff I cannot help but feel newer motor vehicles are less reliable than those of 20 yeas ago.

[Gdetrailer]

Some pretty darn off the wall, wacky responses..

None of the responses are even close.

I suspect your E450 V10 may be a "drive by wire" electronic throttle body.. The throttle body is controlled via the ECU computer.

If this is the case then the ECU WILL need some time to relearn all of the sensors including the throttle body..

There should be a procedure in the chassis owners manual on the relearn process.

Do you have a "wrench" icon lit?

If you do there is a possibility that the throttle body plate has become gummed up and is stuck or sticking.. The ECU commands the throttle plate to open and close, if the throttle plate gets stuck the ECU will light the wrench and put the engine in limp mode..

Result is loss of throttle operation..

Fix for this is a simple cleaning with a can of throttle body cleaner and rag.. The downside is you have to remove all the air intake parts down to the throttle body to get to it..

Once you have access you turn the key on but don't start the engine.. Then you need a short board to jamb the foot pedal to the floor (or a helper).. Once you have the throttle plate open you can spray some cleaner on the rag and swab the plate and body until clean.

If you spray directly in you will need to wait overnight for the spray to evaporate, otherwise you will create the same symptom of a carb that flooded..

[RoyB]

We used to clear some fault codes by disconnecting the battery terminals and then pull a light switch ON for a short time... This will drain off any residual current that may reset some settings... Used to work great doing this clearing code messages etc.

However a couple of years ago I had to replace my Truck Alternator one time so pulled the battery terminals and pulled the alternator and off to NAPA I go. Came back with rebuilt alternator and got it all hooked back up and things ran good but my idle setting was way off. My engine would die if I took my foot off from the gas pedal at a stop sign. I drove it awhile this way for a couple of days as the book said it would re-learn its setting again...

Finally had to take it in to be put on the Ford Computer at a minimum cost of $90 an hour. It took about five minutes to reset all the settings and things were just fine after that. Still had to pay the $90 service charge for the five minutes of work...

A better for Ford idea I reckon...

Even today if I have to pull my Truck start battery terminals for any reason I always throw in a second 12VDC source to keep the computers still going...

Will work hard to keep from throwing away another $90...

Roy Ken

[pianotuna]

Hi,


Try disconnecting the battery overnight. Perhaps it will "reset" again.

The other alternative is to get something such as a scangauge that can clear the codes.

I don't have any experience in doing this, but do know the device above can clear codes.

[wcaswell]

MEXICOWANDERER wrote:
Ford, wants you to spend money for an ECU "re-set". Done with an electronic instrument.

Any other option? The biggest problem is that Ford's technicians won't come to the RV, and I can't get the RV to move.

[MEXICOWANDERER]

Ford, wants you to spend money for an ECU "re-set". Done with an electronic instrument.