dizzyroc88

while accelerating the car will studder alot and then ill hear a knock...i changed the fuel filter and it all went away for a couple days but now its back again...what could it be?

thanks in advance

TeamNextGenChris

how long since you last did a complete tune-up?check your timing too.
chris

dizzyroc88

i checked the timing yesterday it was fine...its abuot an month and a half since the last complete tune up

SOHC_MShue

what gass are you running? What is your ignition timing set at?

dizzyroc88

when i took out the fuel filter there was alot of rust in it... i thought two things my gas tank is rusted on the inside and the other...it was the original fuel filter. i bhought it off some old guy that used it about 3 weeks a year...i was hoping it was just that the filter had not been changed but i dont know im stumped

dizzyroc88

medium grade....the iginition timing...the same way it came out of the factory it hasnt been messed with

TeamNextGenChris

how long have you owned the car?has it done this since you bought it,or did it just recently develop?what car and engine?when you say you checked the timing,did you actually use a timing gun,or did you mean that the distributor hasn't been moved from the factory position?
chris

dizzyroc88

i used a timing gun and all the lines matched up...92 civic hatch d15z1 ive had it for about 1 year the problem just recently developed. i just changed the distributor when the i did the tune up

dizzyroc88

^^

dizzyroc88

TeamNextGenChris

hmmm....i'm thinking here.how many miles on the motor?you might want to try some kind of top end cleaner like Seafoam.i always use it when i swap in a motor-really gets all the carbon out of the intake and head.if you've got a lot of buildup that can definately lead to knocking.it only costs a few bucks and is easy to do.really makes a difference.
chris

dizzyroc88

its has 76xxx miles

TeamNextGenChris

the engine cleaner is worth a shot.i've had higher mileage motors before that would ping even with proper timing and octane.got all the built up carbon out with the Seafoam and it cured the ping,and made them run smoother.
chris

dizzyroc88

and what i just spray it on the motor like if it were a degreaser?

TeamNextGenChris

it has directions on the can-you can get it at most auto parts stores....basically,you warm the car up(with the intake arm off),and spray the Seafoam into the throttle body.you let it sit for a few minutes,then start the car back up and let it run until it burns it all away.
you might also want to pick up a new set of NGKs while you're there,as sometimes the Seafoam can foul the plugs out.after you get done,you can throw in the new ones.
chris

dizzyroc88

thanks for the help..ill go try that out..

ngk? spark plugs?

TeamNextGenChris

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by dizzyroc88 &raquo;</TD></TR><TR><TD CLASS="quote">ngk? spark plugs?</TD></TR></TABLE>
yeah,i'd get a set of standard NGK plugs while you're there-should be under $2 a piece.
chris