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Have 2004 Aviator that won't slow down when you release the throttle. The gremlin is most clearly seen if you shift into neutral on the highway and take your foot off the accelerator. The engine, instead of dropping to idle, holds the rpm at 2,000 or so until the vehicle eventually slows.
Visited the dealer who confirmed what I've been seeing. After some puzzled looks, a call was made to the engineers. Answer - it's supposed to do that and there's nothing we can do.
Back to me. It annoys me enough to have decided to sell the truck although I love everything else about it. But it's just terrible to drive knowing that it won't slow down. It forces me to either brake all the way down hills, or put it in a lower gear, or TURN OFF the engine.
Anybody else notice this? Any clues to remedy? No - I don't believe this is a wicked conspiracy to waste gas and use up brakes and wear out the transmission .
Any Navi owners out there notice this on their trucks? I would trade Aviator for Navi if it would just slow down...
Posted by: Somers Aviator
Does anybody else have the sticking throttle that my Aviator has? How about Navigator drivers?
tks,
George
Posted by: freedom9ner
No, I've not experienced this. I do howver have a shacky rough throttle feel, especially at highway speeds. Maybe its the Idle Control Valve or something. If you feel like replacing random throttle parts you may be able to fix this.
Now that I think about it, the tech may have been right about the reving on the highway. If you put the car into Neutral on the highway don't expect the RPM to drop to the same rate as if you were stading still. It revs it a bit higher when you are moving fast. I will try to confirm this on my Aviator. The vehiicle knows it's speed and anticipates being shifted back into Drive. Not to mention the alternator needs the engine reving to maintain all the electronics.
Posted by: mrzeee
Well it is not a lincoln but my freestar van 4.2 does the same thing and it does , as you say , aggrevate the hell out of me but not quite to the getting rid of the van yet. and yes it is the way it is "normal" they tell me...and I work for ford!!
Max
Posted by: Somers Aviator
Good to hear somebody else has experienced the same phenoumenon (sp?). I still have yet to test drive a 2003/2004 Navigator to see if it's throttle also hangs up. If it doesn't might swap the Aviator and pay whatever it costs me.
The only other thought I had was to wire up a switch to disconnect the lead from wherever (transmission ?) the ECU is getting its information on vehicle speed. That way I can disconnect when off the gas. The ECU will think the vehicle is stopped, and return the engine to idle. Somehow this is too simple and sure to freak out the ECU and generate a ton of codes.
In the meantime will just continue putting in neutral when stopping, at least the brakes won't have to fight the engine to stop. Still wonder why FORD programmed it this way. Would think they would want to use less fuel rather than more.
Posted by: chickenviii
how hard is it pulling? how fast does it idle?
Posted by: Somers Aviator
It's hard to quantify how much unwanted throttle is being generated but on a very slight downward incline, the truck will not stop until the brakes are applied or it runs out of gas.
In neutral (the only way to see), the tach will follow the vehicle speed up or down until the vehicle hits about 20 mph, at which time the idle will return to idle (650 RPM).
Posted by: Somers Aviator
Well, I'm just about out of ideas. Last week I went to my local Ford/LM dealer, put five $50.00 bills on the counter and offered it as a tip to any tech who could reconfigure my truck to release the throttle when I get off the gas. No takers so I am giving up.
Drove a 2004 Navigator over the weekend. Nice. Off the gas, the throttle closes in less than 2 seconds.
Like the air-ride also but getting 20 mpg is going to be a challenge.
Anybody out there want to trade a Nav for an Aviator?
.