Car issue!

[Spartan26]

Hey guys,

I was driving on the highway last night and all of a sudden out of nowhere my engine decided to start bugging out. It was comparable to the sound of a snlowblower/powerwasher when you have it set on choke to start it up. As I would give it gas it would react slightly but it almost felt like there were just pockets of power. It was like the RPMs were bouncing up and down but I didn’t see much movement on the guage.

I threw the car into neutral to see if the engine would catch itself and it did for a while. I decided towards the end of the drive to step on the gas and a little after I did that the same thing started to happen. I have been noticing some hiccups once and a while but nothing crazy. I wasn’t sure if I had sludge blocking the fuel pump since I tend to run my tank a little low.

The car is an 2008 Audi A4, Tip, 50k Miles.

[doublezero30]

sounds like a misfire. have you had the coilpacks replaced? when was the last time you changed you spark plugs?

[Spartan26]

Thanks for the quick response, I have yet to replace any of the coilpacks or spark plugs.

[CleverA4Name]

Yep sounds like a misfire or fuel cuts. Make sure to check your cam follower too

[jimrobbington]

I would also vote coil packs. Get them replaced for free at the dealer

[bman005]

X2 on it probably being coils. I'd do that first. Are you getting the MIL or EPC light coming on?

[Spartan26]

No lights came on which I found odd.

[doublezero30]

the dealer should take care of the coilpacks because there is a recall on them, but youre right around the mileage where the OEM spark plugs need to be replaced as well.

[airbornerifleman]

FYI

Misfire = Blinking CEL

[doublezero30]

FYI

Misfire = Blinking CEL

youre wrong. a blinking CEL means a SEVERE misfire, and you should not drive the car. you can have a misfire without any CEL at all. It has happened to me on multiple occasions.

[bman005]

the dealer should take care of the coilpacks because there is a recall on them, but youre right around the mileage where the OEM spark plugs need to be replaced as well.

Coil recall does not apply to 08, only up to 07

[Spartan26]

I just ran outside to start the car and listen for something. Still no lights on the dash and I gave it a little rev and as soon as I took my foot off the gas it sounded like my engine was on the verge of giving out.

[bman005]

check you pcv too.

[airbornerifleman]

youre wrong. a blinking CEL means a SEVERE misfire, and you should not drive the car. you can have a misfire without any CEL at all. It has happened to me on multiple occasions.

You are right, that what I ment to say.

[doublezero30]

Coil recall does not apply to 08, only up to 07

oh i didnt know the year mattered. at least theyre cheap!

check you pcv too.

this too. not sure if year matters with PCVs as well, but mine was replaced under the recall campaign.

[BoSNiaN]

youre wrong. a blinking CEL means a SEVERE misfire, and you should not drive the car.

Nope....Something as simple as a coil pack dying out will cause a blinking CEL....Happened to me, it only blinked and started to misfire when I really gassed it but was fine otherwise. Blinking = misfire, has nothing to do with the severity.

[jrtrainor]

Try running the car and if its stumbling pull out the dip stick if you hear a rush of air the pcv is broken. This is how i discovered my pcv had crapped out. May not work may have been sheer luck but im still gonna post the idea. My car was sounding like it was going to stall all the time and it would not get on the throttle but it was still driveable. NO codes were thrown. Just a thought.

[Ed Gein]

there are ways to test if your pcv is bad, i would do those and if its not the pcv do coils and spark plugs

[Spartan26]

Alright, I will take a look. Thanks for all the input!

[Brillo]

Check coil packs, PCV valve, change plugs, check cam follower, check fuel pressure, consider changing fuel filter

[jrtrainor]

Check coil packs, PCV valve, change plugs, check cam follower, check fuel pressure, consider changing fuel filter

While your at it check the timing belt, oil, diverter valve, armrest latch, bi-xenons, and whatever else goes wrong with our cars

[Spartan26]

hahaha, well I pulled my dipstick out when I had the car running and it sounded like a lot of air was shooting out.

[jrtrainor]

Pcv it is. Time to get a catch can i personally reccomend rai's

[Spartan26]

Is there a certain OEM PCV vesrion that works best with our chip? I am looking for some part numbers. I will probably get a catch can in a few months.

[jrtrainor]

There's no point in replacing the Pcv and then buying a catch can. Your adding unnecessary costs. That being said I have one of the revised editions of you'd like it.