How can I make the gas pedal stiffer?

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LSFan

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Is there a simple way to do this?

Explanation: I am getting 17.5mpg in suburban/some hwy driving in an 04 V6. I feel that this could be higher. The problem is the gas pedal is very sensitive. I end up giving too much gas from a stop and even bumps along the road cause my foot to depress the pedal enough to jerk the car forward especially at low speeds like in parking lots. I have noticed this for the entire 4 months of ownership and need a fix! Even if it doesn't have an effect on MPG it is still annoying. Solutions?

Thanks
 
I've never had that issue. Have you driven any other LSes (2003 to 2006 model year)? Perhaps your pedal assembly is defective? Alternately, what other cars are you used to or comparing this to?
 
never had this problem, whether wearing no shoes, flip flops, sneakers or cowboy boots...

sounds like either a defective accelerator pedal or ankle.
 
1LoudLS said:
sounds like either a defective accelerator pedal or ankle.
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It's this one. I think it's this one. I've never even noticed significant differences between gas pedal stiffnesses. Brakes? Definitely. I miss the 1/2" of travel in that 911. It was more like a pressure sensor than a lever. I have noticed my foot wiggles in any car when I hit a bump while cruising in 1st up around 25mph, as evident by the jolt in acceleration, but it's not something I ever notice when in Auto. Yes, it still happens, but I wouldn't blame that for getting my up to the EPA's city rating (I'm below that...).

LSFan said:
Is there a simple way to do this?

Explanation: I am getting 17.5mpg in suburban/some hwy driving in an 04 V6. I feel that this could be higher. The problem is the gas pedal is very sensitive.
Click to expand...

The problem is the entire assembly around the pedal. All 3,700lbs of it
 
Read his other (older) thread guys. You'll see a good possible reason for the low mileage.
 
joegr said:
I've never had that issue. Have you driven any other LSes (2003 to 2006 model year)? Perhaps your pedal assembly is defective? Alternately, what other cars are you used to or comparing this to?
Click to expand...

I have not driven any other LSs but I have been working at a lexus dealership and have driven plenty of other used cars of all different makes and models and have never experienced that.
 
joegr said:
Read his other (older) thread guys. You'll see a good possible reason for the low mileage.
Click to expand...

I know the car has some other issues but the jerks in acceleration is pretty noticeable. And as I stated, even if it has no effect of MPG I would still like a solution because it is annoying.
 
Why don't you try a new return spring for your pedal? can you get one? No one else has this problem,so maybe your spring is weak? don-ohio
 
No, I've had the same issue with throttle jerkiness in parking lots and such, and there was a discussion on this where someone solved the problem by having the car reprogrammed for smoother throttle response. I just put up with it, for obvious reasons. However, assuming a mechanical failure, in addition to the fuel pedal you can try clean the throttle body. A dirty throttle body can cause the throttle to stick, which can cause the harder than expected takeoff. I imagine at some point the stickiness will get bad enough to set a code, no idea how hard it has to be for the computer to set a code, or if it will even recognize it as a problem.

So far as the mileage goes, you say suburban driving? Perhaps you're going 45 or below? If so, poor mileage as the car isn't efficient below around 55 or so. Mine at least seems to be most efficient around 2000RPM to 2200RPM in 5th gear, outside this range or in a lower gear and efficiency drops.
 
Telco said:
........... in addition to the fuel pedal you can try clean the throttle body. A dirty throttle body can cause the throttle to stick, which can cause the harder than expected takeoff...........
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Careful with cleaning the throttle body. This is from the Service Manual http://deneau.info/ls/ under Throttle Body:

"CAUTION: Throttle body bore and plate area have a special coating and cannot be cleaned, or possible damage to the throttle body can occur."
 
How lovely, a throttle body that can't be cleaned. I think I'd take the chance, if nothing else spray a rag with throttle body cleaner and wipe it down. Naturally the LS does it differently from every other car on the road, but the ones I've dealt with the main thing to do is make sure the TPS doesn't get any cleaner inside of it as it can damage the innards of the TPS.

I'll also add that I've used throttle body cleaner on my throttle body, and have seen no problems from it.
 
Ford recommends not cleaning most of their throttle bodies. This is not an "LS thing." There's a special build-up resistant coating on there. Once you clean the coating off, you have the clean the throttle body frequently.
 
joegr said:
Ford recommends not cleaning most of their throttle bodies. This is not an "LS thing." There's a special build-up resistant coating on there. Once you clean the coating off, you have the clean the throttle body frequently.
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The coating on my '97 F150 started to peel off after 5-7 years. It's really not as permanent as Ford makes it out to be. I'd just go ahead and clean it and do it every year or two after that.
 
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