Maul

Car is an '06 with 52K miles. It has started surging when slowing down, starting from a stop, or just basically at lower RPM's. It idles a little rough as well. It's pretty much fine once you're up to speed, but it's most noticeable when you're almost stopped, but are still rolling that last couple of inches, the engine surges and the car jumps ahead a little bit. Seems fuel related, but wanted to see if anyone had any advice. I would imagine changing the fuel filter would be one, but what else?

Thanks in advance!

2005Redfire6

What exactly do you mean by surging?

legendlime05

is the car stock?

Joshspony

I would recommend a fuel filter if it hasn't had one recently. I think they are about a 20k mile maintanance thing.

Also is it when you are rolling and touch the gas? maybe a throttle recaliberation. Turn key on, don't start car, wait till lights go out and slowly press gas pedal to the floor, slowly release gas pedal, turn off key, do it a couple times, then start it and test drive.

2005Redfire6

I've done this before but I didn't know that was what a throttle recalibration was, thats good to know.

legendlime05

man we cant help if you dont talk to us

2005Redfire6

Its obviously not bothering him too much lol.

Maul

Wow..., sorry to bring this back from the dead. Thanks for the replies guys! Apparently I didn't have the setting selected to be emailed when someone replies to my topic, lol. I just thought no one had replied. Haven't been on the board much since we got rid of our Mustang. This is my Mother-in-law's car that's having the problem. Before, I just made sure the TPS was nice and tight and it seemed to fix it until this week, and now it's acting up again. Wasn't aware of the recalibration, will give that a try. Sorry, when I said "surging," I meant the RPM's would increase, making the car want to go, even though I wasn't pressing the gas. Does something like this typically wind up being the TPS needing to be replaced?

Thanks and sorry again!

Nuke

I'd clean the throttle body and MAF before anything else. The fuel filter shouldn't cause that but that's a 20 minute job, too.

Whitehorse10

I agree with Nuke, start with cleaning your MAF sensor especially if you are using an air filter that uses oil in it. Despite the claims to the contrary by the manufacturers the oil does get sucked into the engine and it can leave a coating on your MAF sensor that can cause the surging you described.