Golf IV / Jetta IV :: 2001 - Misfiring After Installing Brand New Coil Pack, Wires And Plugs

2001 MK4 GTI VR6 put brand new coil pack, wires and plugs in the car because it was misfiring. Was fine for about a week than I got a clogged cat code and could feel the affects. I now have no cat, no resonator, and no muffler. The car is finally driving good and then the check engine light came back. It says only a misfire in Cylinder #3 and when accelerate hard to speed up my check engine light starts to blink until I stop accelerating hard. So my guess is the clogged cat caused that cylinder to misfire but I do not know the actual solution to this. My EVAP hose is semi-pinched and when u squeeze it you can almost kill the engine. The weirdest thing of all is this: driving normal I shift in between 2000 and 3000 RPM and once i get into 4th gear about 2000 RPM......my car starts shaking badly and i feel like my engine is going to fall out. I have searched and the only thing i can think of is a bad injector...

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Golf VI R :: Engine Knocking Under Load - Changing Spark Plugs?

I got the APR ECU Tune in June along with VW Racing air intake. Car runs great except... the engine is knocking under full load. The guy who did the install heard it right away but I just thought he was trying to up sell me. He suggested new spark plugs.

Well it's two (three?) months later and I've come to accept that I can't drive it in the 91 program anymore (I paid extra for the ability to switch programs - lucky!!). I was switching back and forth between 91 and stock and I can hear the difference.

Are spark plugs the likely fix, and how do I choose the right ones for my Mark VI Golf R? "one step cooler"??

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Passat (B5) :: 2004 - Spark Plug Coil Pack Removal?

2004 passat 1.8t. How do I remove the coil packs on the top of the spark plugs, so I can repalce the plugs.

I unclipped the wire and unsure how to pull the coil pack off.

No bolts. can turn it and maybe pull, but doesn't budge and don't want to break.

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Ford - Explorer :: Coil Pack Isn't Putting Out Spark To Cylinder 1

1998 Ford Explorer. Coil pack isn't putting out spark to that cylinder. Would the next step be to replace the pack, or might I check something else 1st?

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Prius (Gen 1) :: 2002 Spark Plug Thrown And Loosened Coil Pack

I have a 2002 prius that threw a spark plug and loosened the coil pack. The mechanic just reinstalled the plug and tightened the coil pack and said it was fine. Why it would throw a spark plug?? It was running fine, no warning lights, i just heard an unusual slight noise and opened the hood to check it out, and notice the loose coil pack over the first spark plug

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Ford Excursion :: Spark Plug Came Out And Broke The Coil Pack Mount

I'm looking around for coil packs and came across these: Granatelli Pro Series Extreme Coil Packs.....

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Ford Aerostar :: Diagram For Driver Side Spark Plug Wires At Coil Pack?

I removed all the spark plug wires for testing/cleaning and install new spark plugs, but stupidly forgot to mark the wires where they came off at the Coil Pack. yes, Now I cannot find a diagram for the Driver's Side wire positions at the Coil Pack.

(The Passenger side wires are 1-2-3, starting from the front of the engine, simple enough); The Coil pack itself has numbers stamped on it, so I have the Passenger side done correctly.

But the Driver's Side wires are not in a Sequence of 4-5-6, instead they are 4-6-5 (or something like that), and I can't remember their positions at the Coil Pack. Looking for a drawing showing the Driver's side Wires as they connect to the Coil pack?

Example:

Front Driver's side plug wire connects to which coil pack position? (Front, Center, or Rear?)

Center Driver's side plug wire connects to which coil pack position? (F, C, or R?)

Rear Driver's side plug wire connects to which coil pack position? (F, C, or R?)

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Prius (Gen 3) Fuel :: Not Changing Spark Plugs Can Drop MPG?

My 2010 prius had been giving low mpg since the last three months. It has now 145K miles.when I bought it a year ago, it had 134K on it. I haven't changed the spark plugs, do they have any effect on low mpg? My mpg is about 39 now,but was 42_45 before.

What are the symptoms for the spark plugs to be changed?

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LS / MKZ :: 2001 V8 Giving Off Strong Smell After Changing Spark Plugs

2001 LS v8 .... What would cause the car to give off a strong smell after changing the plugs?

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Prius (2004-09) :: Necessary To Disconnect 12v Battery Before Changing Spark Plugs

I got the plugs for my '06. I hope to put them in in a day or 2. My question is: is it necessary to disconnect the 12v battery to do this? I've changed plugs in other cars without doing so.

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Ford Ranger / B-Series :: 2004 - Changing Spark Plugs?

2004, 4L, sohc - Is there any issues or problems changing spark plugs?

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4Runner/GX470 :: Fuel Pump Is Not Working After Changing Spark Plugs

As I say in my first thread my 2000 4 runner don't start after I change the spark plugs. I don't get any fuel pressure from the fuel pump.

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Impala - Chevrolet :: Changing Spark Plugs But Can't Get Grip On Rear Bolts?

I am trying to change spark plugs and wires on my 2001 Impala with a 3.8 liter. I was able to get the boots off of the front plugs OK but I am having trouble getting a good grip on the rear ones. It seems like they have glued themselves to the plugs. Removing the boots?

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Ford Super Duty (1999-2016) :: Changing All 16 Spark Plugs?

My 2011 f250 has 92k miles, I want to change all 16 spark plugs.

Do the 6.2l plugs have problems breaking like the 3v engines did?

I think I'm going to pull the passenger fender liner to get to the lower plugs in the head.

How does the coil pigtail unclip? I looked at them briefly earlier and it looks like you pull the red tab back, then press down and pull on the pigtail but that did not work and I did not want to break anything.

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Ford F-150 (2004-2008) :: Misfiring On Cylinder 4 - Changing Spark Plugs

2004 5.4L ... Codes indicate a firing issue on #4 cylinder, figure it's the coil pack. They bought truck used a few years ago and plugs have not been changed since they have owned it. I was going to change plugs while I was under the hood. While checking threads on this engine I picked up on plugs being a major job unless you know the tricks. So what tricks do y'all have up your sleeve to keep from breaking plugs?

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Golf IV R32 :: Remove Half A Coil Pack?

I was removing the coil packs on my car in preparation for the new ones coming in. The far right coil pack came out very easily and was about half as long as I expected. The other half of the coil pack was at the bottom of the spark plug well. I reported a misfire yesterday. As the mechanic would say "now there's your problem". removing the bottom half of a coil pack?

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Prius (2004-09) Fuel :: 2006 Noticeable MPG Drop After Changing The Spark Plugs

Right now I am seeing roughly 41 MPG and that is after changing the spark plugs with brand new NGK Iridium's, Air intake filter and did an oil change since it was due for one. I have driven the car roughly 2,500 miles since all of this stuff was done and it just seemed to continue to drop to the 41 MPG mark.

What I have noticed though is that when the motor turns off it shudders and the when it restarts while the car is in park the car will roll back and forth slightly. I have also noticed that the car seems to struggle to get up to the posted speed while climbing an incline and also while the car idles in park or at a complete stop there seems to be a bit of a miss fire. Could that be caused by a bad coil? Because I have tried everything short of taking it to the dealer which I really do not want to do again and be told there is nothing wrong with it when I know there is.

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Sonata NF (2006-10) :: Tiny Rattling Noise After Changing Spark Plugs / PCV Valve

So, I changed my spark plugs a couple of months ago and did the pcv valve swap as well. Now I have this high pitched rattling noise, like a tiny chain rattling. It is coming from the engine bay - in the area between the throttle body and the firewall. At least that's where I can hear it.

It does it quickly right after I start the engine (though I am certain it is not a timing chain issue)...I had that fixed a while back. Also it doesn't sound like the timing chain tensioner noise.

I am thinking maybe the pcv valve that I swapped out. I remember reading that a new one should make some noise when you shake it...an old, gunked one would not rattle if you shook it in your hands. Consequently, this noise sounds a lot like if I would shake the pvc valve back and forth very fast.

It happens intermittently on idle....and when I rev the engine, it will also make the noise while the RPM falls back down. Since this happened literally right after I did the spark plug change and the pcv valve, my guess is it's that. Maybe I didn't install it correctly.

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Passat (B5) :: 2.8 V6 Shutter - Coil Pack Is Going Out Or Loose Connection To The Coil

B5 Passat, it has the 2.8 and it has been having moments of shuttering so I did a scan and hit 3 engine falts, I did do a clear and rescan so these are new faults.

3 Faults Found:

17801 - Ignition Coil Power Output 1
P1393 - 35-00 - Electrical Malfunction
17802 - Ignition Coil Power Output 2
P1394 - 35-00 - Electrical Malfunction
17803 - Ignition Coil Power Output 3
P1395 - 35-10 - Electrical Malfunction - Intermittent

Right now my guess is the coil pack is going out or loose connection to the coil, this coil is roughly 8 months old so it kinda has me at a loss and hoping its not the coil.

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