I have issues with my motor dying when I come to a stop sign. This only happens after the motor has warmed up. This all started about 3 weeks ago when I accidentally left my lights on and draining the battery completely dead. The van currently has 93,000 miles on it. There is no check engine light on the dash. The same thing happened about three years ago, when I disconnected the battery for service. But that time it corrected itself after about a week. Anybody got a clue where I should start looking? I would like to add that I drive this van everyday it is my personal vehicle that I run in my business. Thanks to all that can help

 

Does your charge/discharge meter indicate you are charging when at idle?

Steve

 

I just checked the charging gauge and I don't see any movement at idle, however when I pull up to a stop sign I can hear the RPM in the air conditioning blower slow down a little bit before the motor dies. When the motor is idling in Park I hear the motor surging maybe a hundred to 200 RPM up and down .but It has a smooth idle. And does not stall when idling in park. It has a k&n air filter and I checked it and cleaned it a couple of days ago it was a little dirty but not bad. It actually behaved after cleaning it motor did not die. But the very next day it started acting up again

 

Two things you should do ASAP:

-Have the alternator and charging system checked for proper operation. Most likely this is NOT an issue with that system but it would be prudent none the less.

-Check (or have checked) the Idle Air Control valve---this could be related to that device needing serviced or replaced.

 

thanks for your responses I thought it could possibly be the air idle valve also. Just where is it located on a 4.6 motor? I couldn't see it on top of the motor

 

I changed out the alternator and it's still dying, so does anybody know exactly where the idle air valve is located at on the 4.6 motor?

 

The 2004 and newer vans do not have an IAC as they are drive by wire. You would need to get a new throttle body, or at least a TP sensor. The service replacements are much better as they have been revised many times since 2004, when they started this.

 

I think model year 2005 was when the "fly by wire" throttle bodies were introduced. I have both a 2003 and 2005 so cannot definitively say 2004 did not have the newer design TB.

2006 would certainly have it though.

 

Thanks for all your help,I will order a throttle body and a throttle position. The throttle body is under a hundred bucks not bad. Now questions about suspension, I will start a new thread on that thanks

 

Okay---thanks for the update! Please let us know how the TB and TPS works out---could be helpful to others.

And yes always best to start a new thread about another issue--tacked on questions tend to get lost or over looked.