Missing....again

KevinJ99GT · March 10th, 2009, 12:09 PM

I had a missing problem in the upper rpms a few weeks ago changed spark plugs probelm solved...Now i have a miss in the lower rpms but it doesnt do it all the time. Sometimes i get lucky and it wont and sometimes it just goes away. Fuel filter is pretty new Coil packs have 50k on them. Any ideas?

cigarmanva · March 10th, 2009, 12:17 PM

are the plugs tightened down properly and fully in the heads....aka held in by all 3 threads?

rOnstanG281 · March 10th, 2009, 12:24 PM

Originally Posted by KevinJ99GT

I had a missing problem in the upper rpms a few weeks ago changed spark plugs probelm solved...Now i have a miss in the lower rpms but it doesnt do it all the time. Sometimes i get lucky and it wont and sometimes it just goes away. Fuel filter is pretty new Coil packs have 50k on them. Any ideas?

check and make sure the coil packs are in the right spots i no that wud definaly do it

KevinJ99GT · March 10th, 2009, 12:46 PM

It just sucks that i cant figure this out. What about o2 sensors? Its weird that its just certain times that it does it.

ajm · March 10th, 2009, 01:50 PM

Check the coils. Even though they have 50k miles check them anyways.

mrsinister2424 · March 10th, 2009, 02:34 PM

Originally Posted by cigarmanva

are the plugs tightened down properly and fully in the heads....aka held in by all 3 threads?

You made me Lol.
God damn spark plug blow out.

@OP: ^^^ I'm with these guys. Plugs, cops, you can check o2's but I doubt that's the culprit.

NeverEnuff · March 10th, 2009, 03:56 PM

Clean your MAF.

gray8188 · March 10th, 2009, 05:49 PM

Clean your iac..

Fluffy The Rhino · March 10th, 2009, 07:29 PM

Sea Foam : D

KevinJ99GT · March 12th, 2009, 10:48 PM

So my coil boots were messed up pretty bad and water was getting down into a few of the cylinders. I already ordered new boots. Is there any other way to keep water from getting down there?

Willy Mo · March 12th, 2009, 10:52 PM

nice job with finding the problem. I would assume who ever replaved the coils tore them up a lil on the install

00redgt · March 13th, 2009, 01:06 PM

clean iac and maf,

cigarmanva · March 13th, 2009, 01:25 PM

Originally Posted by KevinJ99GT

So my coil boots were messed up pretty bad and water was getting down into a few of the cylinders. I already ordered new boots. Is there any other way to keep water from getting down there?

I would thnk a bead of silicon on the outside of the boot at the top outer edge may help

March 10th, 2009, 12:09 PM	#1
KevinJ99GT Enthusiast 1999 Mustang GT 8.30 1/8th mile Join Date: Jun 2008 Location: Walnut Ridge, Arkansas Posts: 866 iTrader: 0 reviews	Missing....again I had a missing problem in the upper rpms a few weeks ago changed spark plugs probelm solved...Now i have a miss in the lower rpms but it doesnt do it all the time. Sometimes i get lucky and it wont and sometimes it just goes away. Fuel filter is pretty new Coil packs have 50k on them. Any ideas? __________________ - full bolt on's, hitech stage 2's, zex 100 shot

March 10th, 2009, 12:46 PM	#4
KevinJ99GT Enthusiast 1999 Mustang GT 8.30 1/8th mile Join Date: Jun 2008 Location: Walnut Ridge, Arkansas Posts: 866 iTrader: 0 reviews	It just sucks that i cant figure this out. What about o2 sensors? Its weird that its just certain times that it does it. __________________ - full bolt on's, hitech stage 2's, zex 100 shot

March 10th, 2009, 05:49 PM	#8
gray8188 MM Fanatic 2003 mustang gt yr 1965 @ 88mph Join Date: May 2008 Location: between bluefilly's legs. Posts: 3,425 iTrader: 5 reviews	Clean your iac.. __________________ i'm pretty sure that when i move into my own place i'm gonna mount an anti aircraft gun on my roof with somebody manning it 24 hours a day. why? because it would be fucking AWESOME.[/quote]

March 10th, 2009, 07:29 PM	#9
Fluffy The Rhino Bearer of Bad News I has mustang and legacy. Slower than my Ruger. Join Date: Sep 2007 Location: The Fuckening Posts: 2,377 iTrader: 0 reviews	Sea Foam : D __________________ ~MOD NUTSWINGER~ My Tongue Soothes Razorburn STOPSAYINGFAIL.COM EVERY FART IS A GAMBLE Just Think Of Me As A White Blood Cell.

March 12th, 2009, 10:48 PM	#10
KevinJ99GT Enthusiast 1999 Mustang GT 8.30 1/8th mile Join Date: Jun 2008 Location: Walnut Ridge, Arkansas Posts: 866 iTrader: 0 reviews	So my coil boots were messed up pretty bad and water was getting down into a few of the cylinders. I already ordered new boots. Is there any other way to keep water from getting down there? __________________ - full bolt on's, hitech stage 2's, zex 100 shot

March 10th, 2009, 12:17 PM	#2
cigarmanva Regular 1999 Mustang GT Join Date: Sep 2008 Location: Charlottsville va/ pittsburgh Posts: 153 iTrader: 0 reviews	are the plugs tightened down properly and fully in the heads....aka held in by all 3 threads?

March 10th, 2009, 01:50 PM	#5
ajm Banned Join Date: May 2008 Posts: 7,966 iTrader: 4 reviews	Check the coils. Even though they have 50k miles check them anyways.

March 10th, 2009, 03:56 PM	#7
NeverEnuff Hardcore Enthusiast 1989 LX Coupe 7.1@99mph Join Date: Jan 2009 Location: Texas Posts: 1,695 iTrader: 0 reviews	Clean your MAF.

March 12th, 2009, 10:52 PM	#11
Willy Mo MM Fanatic 2002 Mustang GT Join Date: Sep 2008 Location: MO Posts: 4,368 Blog Entries: 1 iTrader: 2 reviews	nice job with finding the problem. I would assume who ever replaved the coils tore them up a lil on the install __________________

March 13th, 2009, 01:06 PM	#12
00redgt MM Fanatic 2000 mustang gt Join Date: Oct 2007 Location: vansant,va Posts: 4,092 iTrader: 5 reviews	clean iac and maf, __________________

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