arrazola_a

I did a tune up on my 96 max about a month ago and noticed some bad pinging while in D at a stop. I changed the spark plugs fuel filter air filter oil and oil filter blah blah.. i noticed when i was on the last plug that the coil has a small amount of oil on it. i cleaned it off replaced the plug and my car was running great. the next day is when i first noticed the "thump". everyday since then its gotten worse. any ideas? i already searched for ever and still cant find anything.
No check engine light either.... also i cleaned out my tb. help please i want my max back
oh also i realized it only does it while in gear . when its in park it doesnt ?

Amerikaner83

iTrader: (17)

Check for codes, even though you don't have a CEL.

Does it "thump" now, at the same times /places it used to ping? Describe the thump...at speed/rpm? do you hear it or feel it?

which plugs specifically did you use when you changed 'em?

T_Behr904

Are you using premium fuel?

SVI30

Oil in sparkplug tube is due to leaking tube top seal. I have two tubes with oil in them on the back bank. Finally pulled the valve cover and replaced them. Oil in sparkplug tube doesn't hurt anything.

arrazola_a

It didn't do it before i changed the spark plugs. its more of a thump/tug and only does it under 1000rpm . i used autolite double platinum. im wondering if it has to do with the spark plugs because thats when it started. i will post a video to give better detail

arrazola_a

before i changed my knock sensor i was using 87 but after that i filled up on 91 which is the highest i can get in phoenix.

arrazola_a

i manually checked for codes using the ecu and nothing came up but 5-5 which i believe is nothing

Amerikaner83

iTrader: (17)

YES.

Go to NGK platinum this time. Our cars like NGK plugs.

If it didn't do it BEFORE the plug change, then undo that action and try again.

arrazola_a

http://youtu.be/WuMxlwdSFNE

here is the link
very hard to describe! when i have some cash to burn i will get those ngk plugs.
any special make i should consider? i seen those ones you dont need to gap but not sure if those are even worth it or not. thanks!

Fauken

iTrader: (6)

Rule of thumb for spark plugs with our cars is simple,

NGK or bust!!

Now which ones you choose to run is different (coppers/platinum/irridium)

Amerikaner83

iTrader: (17)

yes...and to expand on that:

Platinum is OEM, will last a long time (60-100K) before needing replacement

Copper ignites slightly hotter, but lasts only 20-30K

Iridium is overkill for standard VQ motors.

asand1

iTrader: (1)

This is not accurate. Hot oil breaks down the rubber coil boot and will cause arcing and a miss on that cylinder.

arrazola_a

Thanks. i forgot to mention that i changed the ks at the same time. i used an ebay one i got for about 10 bucks shipped. that should have nothing to do right?
Thanks for the quick replies the org is awesome!

Amerikaner83

iTrader: (17)

yeah...KS should not be relevant to your current issue.

arrazola_a

i just checked the last spark plug located in the rear passenger side and it was drenched in oil. i cleaned out all the oil in the bank and replaced it with a new spark plug. no change. could it be the coil? thanks!

asand1

iTrader: (1)

Wrap the rubber boot with electrical tape for testing purposes and see if it doesnt run better. New boots are available, front and rear are different.

luke95gxe

iTrader: (4)

this ^ is what i was just getting ready to say

arrazola_a

Can you expand on that. Im not 100% sure what you mean. Yes i am a noob lol