Ford - Explorer :: 2004 - Engine Skipping / Shaking After Replacing Spark Plugs?

I just changed my spark plugs the other day and since then my engine is hard idling and skips and jumps while I'm driving it. I'm being told I either need to change the spark plug wires or the coil packs. So my question is which do I need to change? And is there anyway to test which one I need to replace?

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Camry :: 2008 Toyota CE - P0101 Code After Replacing Spark Plugs

This past Sunday, I replaced the spark plugs on my 2008 Toyota Camry CE, following one of the sticky DIYs. My car has approximately 107,xxx miles.

Last night on my drive home from work my CEL came on. First time seeing a CEL light since my BMW days, . Luckily, I have a OBDII scanner at home and after running the scanner, it gave me the following trouble codes:

- P0101
- P0172

I went ahead cleaned the air filter (I have an Injen SRI installed).

After doing some research on the interwebs, I have concluded that this code has to do with the MAF. Time permitting, I am going to clean the MAF sensor later tonight. In the meantime I reset the CEL, to see if it will come on again.

My only question, which I am unable to find an answer to, is:

Can there be a possibility that the P0101 and P0172 trouble codes be related to me replacing the spark plugs, or is this just a mere coincidence?

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Chevrolet - Trailblazer :: 2003 - Engine Power Reduced After Replacing Spark Plugs

I just replaced spark plugs and now it is running rough and reduced engine power light is on. did not mix up wires or coil packs. did one at a time.

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Ford F-150 - 1997-2003 :: 1999 - Replaced Spark Plugs - Started Shaking And Missing?

I have an 1999 f150 4.2l only 82,000 original miles.i have had truck since new .i just replaced the spark plugs for the first time.i used autolite plat. I also changed fuel filter the truck started to run like crap now shaking and sorta like missing.i pulled the plugs again rechecked the gp reinstalled them installed new wires still runs like crap.went out bought new motorcraft plat. plugs gapped at .054 still runs like crap..so i checked the gap on original plus that have been i the truck since new the gap on them are .074-.075. should i try and gapp the new ones to this the truck ran like a dream with the original plugs at this gap????

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Camry :: 2003 - No Spark In Plugs

'03 Solara 4 cyl, 135K repl. Fuel pump, 45# press ok, NO scan tool code(s), turns over fine, no spark 2 plug. Started/ran fine before fuel pump change.

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Camry :: 2008 / 2.4L - Car Seems To Rough Idle After New Spark Plugs

I have a 2008 Camry, 2.4L, and used the spark plugs change DIY sticky and it seemed to go painlessly. However, after the new spark plugs, the car seems to idle rough. It has 95k miles, and I did the following in the same tune-up:

1. Changed Oil
2. Replaced Air Filter
3. Changed Spark Plugs
4. Cleaned Battery Terminals
5. Cleaned MAF Sensor
6. Cleaned plugs connecting to ignition coils

I used OEM Toyota plugs, and even called the dealer to see if the gap needed to be set. And they affirmed me that the gap is preset on these plugs.

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Camry :: Broken Wire Harness Spark Plugs

Two of my plugs locking clips broke today on the wire harness side where the coil over plugs into the harness today while changing spark plugs. They will plug back up, but they won't lock together like they are suppose to. How critical is this? It is my wife's car will she break down? I drove the car maybe twelve miles, and everything seemed fine.

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Lexus GS 2006-11 :: 08 GS350 With 57k / Change The Spark Plugs?

I'm wondering when I should get the spark plugs change.

I have 08 GS350 with 57k.

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Toyota - Corolla :: 2002 - Tighten Spark Plugs To Same Torque Specifications As Regular Plugs

I am changing my own spark plugs for the first time. I have a spark plug wrench, dielectric grease, anti-seize compound etc.

I have a Haynes manual for my 2002 Toyota Corolla. The book was written before Irridium plugs were used. Should I tighten the spark plugs to the same torque specifications as regular plugs? The book says 158 inch pounds. How do I know I have tightened them to the right amount?

How do I avoid cross threading the spark plugs? What happens if you cross thread the spark plugs (assuming the car seems to be running fine)? Would I need a new engine or expensive repair when it is time to replace the spark plugs again?

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Camry :: 2002 SE V6 - Replaced Spark Plugs / Check Engine Light Came On

I recently replaced the spark plugs on my 2002 Camry SE V6 (Gen 5). Let me just say that it was INCREDIBLY DIFFICULT to reach the rear 3 plugs as they sit underneath the intake manifold, way to the rear of the engine compartment. To reach those, I had to unplug some wires reaching on top of the engine, then loosen the intake manifold.

Along the way I broke a tiny air valve that sits underneath intake manifold, and replaced it right away, before starting the car.

When everything was put back together, the car started wonderfully, only to notice the engine light come on. I had the codes checked at the dealer and they indicated a malfunctioning Catalytic Converter and A/F Sensor and some other emissions stuff. Later that day, the VCS/TRAC OFF light came on as well. The service guy at the dealer said those typically come on together with the Check Engine light, which sounds like something he pulled out of somewhere!

The car drives well, no hesitation, no weird behavior, but has no traction control, naturally. While loosening the manifold I had to use a little force to flex it out of place. My guess is that it I may have yanked something out place: may be a wire issue, or a sensor.

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Toyota - Camry :: 1996 Frequently Keeps Losing Power To The Spark Plugs

My old 1996 Camry with 2200 cc 4 cylinder engine, frequently keeps losing power to the spark plugs. I have changed the fuel filter and the ignition coil. That did not work. I also noticed that the car was starting when I unplug and replug the primary wire plug to the ignition coil. So I have replaced the primary power plug with a six inch pigtail and a used plug purchased from a salvage yard. This is not working either. The Toyota dealer near my house want to replace the igniter and the Engine Control Module just to be sure that these are not the sources of problem. The dealer did not test these parts. So I refused to replace the parts without a proper test. I would like to test these parts. Is there a test available for the igniter and ECM that could be performed. I have access to a lot of tools. I need a schematic and/or test to test these components.

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Ford F-150 (2004-2008) :: 2006 - When To Change Spark Plugs Normally?

I am a newbie here, and also a new owner of a 2006 F150 XLT 4X4 with the 5.4 engine. It has 68K miles on it and looks to have been well cared for. I have a couple questions. First the truck is runnig great, no problems. I have read the threads regarding the spark plug issues and was looking for an opinion about changing them. Should I wait until I have problems, or due to the age of the truck, should I go ahead and attempt it soon? Also, I would like to find a used cap for the bed. I have the 6.5 bed, and wondered what range of years would work with my truck.

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Camry :: 2009 SE 4cyl - 165,000 Miles On Original Spark Plugs (Highway Driving)

I have an 09 camry se 4cyl with 165k. I believe the service interval on the plugs is 100k. However, 75% of my miles are from highway driving. Plainly put, the car still drives like brand spankin new and get gets 30mpg hwy. This tells me the plugs are doing their job just fine. What concerns would you have if any?

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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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Windstar :: Spark Plugs Keep Going Out

I am having a problem where my spark plugs keep going out. I changed all the plugs, wires and coil pack on my 2001 Windstar and within a few months my van was running on 4 or 5 cylinders instead of 6 and this isn't the first time it has happened.

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SC/SL/SW :: 2001 Saturn 2 / Oil Around All The Spark Plugs?

I have a 2001 saturn sl 2 and I noticed some oil around all the spark plugs. The engine seems to be loosing oil a little bit as well, about a quart a week. Its not buring it or leaking that I noticed.

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Golf V R32 :: Spark Plugs Not Firing

I was having some problems and one of my friends told me to post up here before I went and saw my mechanic. So my car isn't starting (its a 06 r32). Now I've gone through a whole list of things and what I have worked out is that it is the spark plugs not firing (none of them are) although they are all brand new and were working not too long ago.

Battery is fine and fuses look good no warning symbols on the dash so I'm at a bit of a loss as to what it could be. Relays? Coils?

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Passat (B5) :: Oil Into The Spark Plugs Compartment

I was thinking about change my spark plugs on friday so today I went to check the ones the car have open the hood took the engine cover out and the ones on the sides, I see 6 wires 4 going to the left side(air intake side) and 2 going to the right side (where the oil fil cap is) so I say think this should be the spark plugs wires. I take one of the left side wires out and is cover in oil so I keep taking the other out one by one and all of them have a lot of oil I can't even see the sparks plugs. All the wires have numbers on top 1 to 6. I say this have to be the wires cause I don't see any other place where the plugs can be located at. The car is a 99 v6 fwd...

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