Originally Posted by JimBlake

If the throttle is held fully open for some reason, you'll loose most of your vacuum boost for the brakes. If you simply use more muscle on the brake pedal, the brakes should be able to stop the car. That is, if losing the boost is the only thing going on with the brakes.

I used to have a 2003 Accord LX K24 with a manual transmission. I thought the brakes on that car were over-boosted so losing the vacuum boost will be a big surprise to someone and they won't be accustomed to pressing that hard on the pedal. So I can understand to some extent. You have to press substantially harder than you would on say a 1964 car with non-boosted brakes.

I've also got the brakes on that car pretty hot (when my wife wasn't watching...) and they didn't have much fading. But how about fresh brake fluid? A little moisture will drop the boiling point... If that's the case, the brake pedal will go down noticeably farther to the floor. Do you know if that's happening?

I don't buy the EVAP purge line. It can't flow enough fuel, and besides a lot of extra fuel without the corresponding air will simply cause the engine to stall. Something must be allowing air in, like the throttle being opened. The IACV & other things like that aren't really capable of flowing enough air to do more than a subtle increase.

Meanwhile, we're all trying to help out with what we know. I don't like to see a thread turn into picking a fight about this when we can all try to help out.

Originally Posted by PAhonda

Lets stop with the bickering and attacking and help this guy out.

Does your car only have brake problems when the engine starts surging?

If this happens again, have your wife put the car into neutral and see if the brakes can slow down the car. Make sure the emergency brake works properly and the rear pads are in decent shape. The emergency brake is always an option.

If the brake and accelerating issue are only happening at the same time, the maybe you have a vacuum leak on the brake booster/vac line. Inspect the brake booster and the large vacuum line. Also inspect all the vacuum hoses for anything obvious. Maybe have the intake smoke tested to locate vacuum leaks.

Originally Posted by NMinop

What?

Originally Posted by babcock9er

The "Flush" deal didn't apply to you.

Originally Posted by NMinop

Figured. Just trying to understand. Thought it was something significant. Don't be rude buddy.

Originally Posted by NMinop

Figured. Just trying to understand. Thought it was something significant. Don't be rude buddy.

Originally Posted by shipo

I don't think he can help himself, he is firmly in the camp of "killing the messenger"; apparently he likes to emulate Trump.