Hey guys so I have some stuff going on. First off no cell no codes besides my abs one but here is my problem so say if I'm driving at 25 miles an hour and put it in 3rd and try to accelerate I'll get one quick shudder and I can do it in all gears pretty much then today I was at a stop light I was going to accelerate a little quickly and I got one quick shudder again. The best best way I can describ this is if you on a bicycle and you go to pedal and the chain slips just once that's how if feels. Just changed the oil air filter is a little dirty need to clean that spark plugs have about 15000 on them .

 

Change and gap the plugs. Seems to have a misfire or two. 15k is a lot of fires for a plug.

 

Even though I'm 2.8 I have also being running mid grade if that changes anything.

 

How old are your primary oxygen sensors? Even if they're not throwing codes (yet) they can still cause your engine to run rich, which could allow the engine to stumble under load. If you check to see how your spark plugs look they could indicate if you are in fact running rich.

 

I've been chasing this for two years on my car, similar situation that happens most if I'm in 2nd gear and turn into the driveway or around a corner and gas it. I get 1-2 stumbles and then it's fine. New plugs, TBA, air filter and MAF cleaning, new vacuum lines, 93 octane, ground web, Seafoam treatments, and electrical contact cleaning hasn't done it. I'm going to clean the throttle body area of carbon deposits and replace the PCV breathed hose since its taped up in a couple spots and see if those help.

 

devil - defiantly clean the throttle body. i had similar symptoms a stutter here and there. i took the tube to the throttle body off and the throttle body. it looked like someone rubbed oil colored peanut butter all over the insides.Cleaned it now my idle is smooth and I have no stutters.

 

I run reg with no issues. Never ran different than with premium. Don't think the compression or timing is high enough to need the added octane and 20 plus cents.

 

okay cool good to know ill try that anyway there is a diy out there ? just to guild me alone for the most part i know what im doing but sometimes need a helping hand

they are right about 30,000

Damn man well let me ever know if you get things back up and good thanks for letting me know what you did


Btw does anyone know where i could get a good fuel filter are the ones i can get at autozone pretty good for our cars or should i go to audi ?

 

Pulling a TB isn't hard. Then just spray it down with some carb cleaner.

 

coil packs.

mine used to shudder under heavy load usually in the later gears 3, 4th and 5th.

changed them and no more sh sh sh shudder .