I have noticed lately when driving on a flat highway at a constant speed I will every once in awhile feel a slight stutter/surge/hesitation. Its not the feeling of gears shifting but it almost feels like I drove over a small bump on the road. This happens randomly and at times it will also do this while accelerating going uphills when depressing the gas pedal at one spot. Does anybody have any ideas? I'm sure the dealer will be no help because they will say they can't duplicate it. Just seeing if anybody else experienced this.
Stutter at Constant Steady Speed
- Thread starter MelFeliFJ
- Start date
This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.
MarcoPolo
Mud.. it's a life...
No answers here...
..just makin the rounds
Welcome to MUD
Good Luck
..just makin the rounds
Welcome to MUD
Good Luck
I have a somewhat similar issue at exactly 35 mph. The trans keeps shifting back and forth with the slightest touch of the pedal, the feeling is very jerky. If I stay off the gas or lock it into 4th, it does not do this. I think that my conditions, flat terrain, very light, occasional throttle input, constant 35 mph and high altitude are conditions the engineers didn't predict in the AT's programming so it gets confused.
DEWFPO
DEWFPO
MT or AT?
I have found that the computerized AT feels "funny". After several trips to the dealer I now feel much more comfortable that it is just the way the tranny was designed to opperate.
how many miles are on the truck?
1911
chupacabra
No; I have changed mine religiously at 30K and 60K miles and the old ones always look just fine and there is no difference in performance with new ones. Besides, if it were the plugs it would do it at all speeds not just one certain rpm.
The AT is controlled electronically and does some seemingly strange shifts that are designed, in part, to "down shift" when on a grade. This is likely normal, but it never hurts to mention to the dealer and if you don't have your own code reader (Scan Guage, etc.) so they can check for error codes.
How old, how many miles and how much wheelin'?
- Thread starter
- #13
I have about 25K and not much wheelin lately. I'm wondering if has to to do with the Flex Lockup/Torque Converter.
I had a problem with my FJ a while ago the steering would intermittently bind up, took it to the dealer and like you said they couldnt duplicate the gripe, so i asked one of the mechanics to ride around with me so i could show him what I was talking about, they found the problem and fixed it under warranty...so you might as well give it a shot since you do have a warranty use it.
That's not unusual and it does not indicate there isn't a problem.
Nope, I never feel mine come on or off
Not necessarily so.
Sound's like they couldn't replicate the issue and gave you the standard "go away-it's normal" slop.
Go test drive a new one and see if it behaves differently under the same conditions.
DEWFPO
did you ask them to go for a ride with you so you could point out the problem when you felt it?
Sounds like the same thing mine is doing. The trans is staying in the same gear but it feels like driving over a rumble strip for a second. Mine usually does it when the truck is in a lower rpm range going up hill. Thought about taking it to a dealer also but figured it wouldnt do it for them so Im waiting for it to get worse.
- Thread starter
- #20