Ford Mustang Ecoboost Forum banner


  1. Timing error? Trans slipping?

    Mustang EcoBoost Discussions
    I have a 2017 with 48k miles on it. As far I know 34k and above the car has been driven pretty modestly. Most of the miles I have put on were highway miles. When I do get on it( less than full throttle) the car will flash red on the dash and feel like it is attempting to down shift before...

    Mustang EcoBoost Discussions
    Not sure if I’m posting this to the right place but definitely need some help. Recently purchased a 2018 mustang ecoboost with 30k miles. When shifting 1st to 2nd gear there is a clunk like if there’s something obstructing it getting in to gear. It will get into gear I haven’t been locked out...
  3. I'm having some strange issues

    Mustang EcoBoost Discussions
    I have an Automatic base EcoBoost 2017 with 34k miles. Lately, I've been hearing a clunking noise from under the car. I'm hearing it from the converter, but my mechanic says he hears it from the back of the car. So we are trying to figure out if it was the torque converter or diff. When I step...
  4. Engine/transmission sound

    Mustang EcoBoost Discussions
    couple odd questions to throw out there for some people, so when I shut the car off there is a rattling sound I’ve noticed. Is this normal? Or something I should be concerned about? 6 speed manual btw. My next question is I’ve seen people post about how the EcoBoost mustangs can push around...
  5. A10 Transmission problems! Am I the only one ?

    Mustang Ecoboost Recalls & Warranty
    I have a 2018 Eco A10 with the performance pack, car was perfectly fine and drove amazing. At 24k miles the trans blew and I had to get a complete rebuild from Ford. After the fix, I noticed on long drives the transmission would shift wild and buck, barely giving response when I push on the...
  6. 2018 Eco transmission issue

    Mustang EcoBoost Discussions
    I recently purchased a new 2018 ecoboost. I’ve been having issues with it when I accelerate and coming to stops. It tends to be lagging and hesitation at acceleration. And when I come to a stop the car lunges forward as it down shifts from gear 3 to 2 to 1. Almost shoots forward into the car in...
  7. Question on the 10spd auto.

    Mustang EcoBoost Discussions
    Hey guys! So I have a 2018 ecoboost with the new auto tranny, and the shifts feel indecisive at times. I read somewhere (can't find source or more info) that the new auto tranny learns your driving habits and over time shifts better/smoother. Is this information true or is it something else...
  8. Is your Mustang a manual or automatic? (voting included)

    Mustang EcoBoost Discussions
    Just curious how many of us are rowing out there - and how many can actually enjoy a coffee while taking a turn. Happy Holidays, everyone. Matt
  9. 2.3l engine and manual trans dimensions

    Mustang EcoBoost Discussions
    I'm trying to find some basic engine package and manual transmission package dimensions to see if this drive train can be incorporated into a project I'm working on. If someone has solid CAD data base for either that would be the nicest. Will
  10. Trans anyone?

    Southwest Mustang EcoBoost Owners
    looking for a 6spd manual transmission for the ecoboost mustang. Anyone around here have one? Know where I can find one? Or anyone at least have pics of the bell house opening to the engine? If anyone knows of someone that's swapped over to a power glide or other auto trans or wrecked and...
  11. 6-speed transmission "Clunk" sound

    Mustang EcoBoost Discussions
    I hear a "clunk", "thump", or "bump" like noise sometimes when I put the car in 1st gear. Does anyone else hear this? I've been to the dealership multiple times for this noise and the mechanics say that all ecoboost mustangs sound like this. They say they've had other customers come in...