!!!Need help!!! for accelerate no Pushing feeling on the back.

[Nex]

Check to make sure the air filter inlet isn’t collapsing under load. It’s a known problem. Cobb makes a bracket for the problem plus a new header panel at the air intake.

This is on a Gen 2 sir. Doesn't have that issue.

 

[leo0807]

That is condensation in the exhaust and is a normal part of the combustion process.



So it's tuned and you can't return it to stock? That sounds like your problem. Call @GooseTuned and see if he can help you reset the PCM. You will need to buy a tuner but talk with Goose. If he can't help you might need to buy a new PCM and have Ford install it.

I asked Goose,but he can only tune.
So i will bring my truck to dealer next week to reset PCM.I will let you know after get result.

 

[leo0807]

This is on a Gen 2 sir. Doesn't have that issue.

I sent truck to dealer,but the same,they insist truck is ok,no code no problem.
I decided sell it.
But still Thank you for your help.

 

[FordTechOne]

I sent truck to dealer,but the same,they insist truck is ok,no code no problem.
I decided sell it.
But still Thank you for your help.

The dealer cannot diagnose an issue caused by an aftermarket tune. The tune won’t set codes because it literally alters the parameters under which a DTC will set. Not sure why you keep bringing it back to them hoping for a different result, you’re wasting their time and yours.