I've noticed in the last few weeks that my gas pedal wants to stick first thing in the morning or after sitting all day when I'm leaving work. When I say stick, I mean it doesn't want to move when I apply normal pressure with my foot. I have to press down really hard, which results in high-revving the engine, in order to get some movement. This seems to go away after a few minutes.

Right now it is just an annoyance, but a new issue that I've never had before. Any ideas on what's going on, or what I could check?

Thanks!

 

Its carbon build up in your throttle body, mine started doing it too. Just take a little carb cleaner and a rag or tooth brust and clean it. It will fix your sticking issue.

 

Cool. I'll try that. Any tricks or tips for cleaning the TB?

 

Just take your intake tube going into the throttle body off, the just use an old tooth brush and carb cleaner. Use one hand to hold the throttle linkage open and the other to scrub away. Good luck

 

Seems to have done the trick. The toothbrush picked up quite a bit of carbon and the stickyness seems to be gone. The real test will be after it sets for a while.

 

Good deal, just let us know.

 

I wonder what is causing so much carbon build-up in the first place? Surely this isn't a common problem with Evos. What mods does your Evo have?

 

hmmm, maybe ill try that too. im having the same issues.

 

had the same problem a while ago - did the same thing and sticky throttle when cold is no longer an issue

 

LimitedSlip - Completely stock, bought it new from the dealer and have never modded.

Just took it for a spin a few minutes ago, feels a bit more responsive and no more sticky pedal.

 

I've taken my TB off twice and thoroughly cleaned it with CRC Throttle Body and Intake Cleaner, it does wonders. If you haven't done this already, go ahead and pick up some Milspec shaft seals and replace the worn stockers.

 

Are the stock seals really that bad? How would I know if they aren't functioning properly?

 

same, only when the car is cold though.

 

I just cleaned mine today throttle body that is since I replaced the Apeture Seals from WORK's and also replaced the OEM Intake Mani to TB Gasket as well. There was allot of build up in there lol. It took almost a full can of CRC TB Cleaner and About 4 rags to get it done but it looks like new now. I am now going to see if I can get this code fixed and if so I will be happy.

 

It's not just on evos, it's with any injected auto. Normal build up, it's from heat and fuel vapors, most dealers do it as a part of a service interval. Nothing to be concerned with just keep up on it I clean all my vehicles throttle bodies every oil change only takes a couple minutes.