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.
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?
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?
View 5 RepliesPrius (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.
View 6 RepliesGolf 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"??
Golf V R32 :: Coil Pack Rust When Changing Spark Plugs
I've been doing the 40k service to my R32, and was in the process of changing the spark plugs.
The first three went smooth with no problems, the next three however.... When I pulled the coil packs off, they were covered in rust and corrosion.
The inside of the block leading down to the spark plug (where the coil pack was) also had rust in it. I haven't pulled those three spark plugs out yet. What caused the rusting?
I assume I need to replace these three coil packs, and clean off the existing spark plugs before removing them. Is that a fair assessment?
I haven't had any trouble with misfiring or stalling. The car has been running great.
Ford Ranger / B-Series :: 2004 - Changing Spark Plugs?
2004, 4L, sohc - Is there any issues or problems changing spark plugs?
View 4 Replies4Runner/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.
View 2 RepliesImpala - 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?
View 10 RepliesFord 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.
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?
View 14 RepliesNissan - Maxima :: 2002 - Tiny Clicking / Rattling Noise
I own a 2002 Maxima with 102,000 miles. For a while, the car has been making a rattling noise while I am driving and pressing on the gas pedal. The noise occurs frequently whether starting from stopped position or accelerating while driving. The engine has checked out fine and a suggestion was made that I use better gas. I filled up at Chevron with '89, which is the grade I have always used but at discount gas stations. The noise however continues. What may be causing the rattling, clicking, tinny noise?
View 3 RepliesLexus 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.
Camry :: 2006 Shaking After Replacing New Spark Plugs
I have a 2006 Toyota camry v6 1mz-fe engine. My buddy changed the all 6 spark plugs using Toyota oem denso.
The car drive weird after that. When I am on the stop light, the car is shaking ( coming from the engine area ).
When I am driving 60 mph, it shakes .
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?
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.
View 3 RepliesSonata NF (2006-10) :: Rattling Noise While Accelerating
Over the last couple of days, my 2009 Sonata V6 has developed what I best can describe as a rattling noise near the engine when I am accelerating the vehicle (noise changes based on throttle input). I only hear the noise with the car in drive, if I shift into Neutral or when I am in Park I don't hear the noise when I rev the engine.
View 6 RepliesSonata NF (2006-10) :: Rattling Noise While Car Is In Idle
Lately I have been hearing a rattling noise from the bottom of my car, when it's in park I can barely hear it but I know its there, but when i put it in drive or reverse it gets worse. Could it be that the exhaust heat shield is loose? Or worse? I had my Tranny fluid flused at 142,000 mi i'm at 144,000.
View 9 RepliesSonata NF (2006-10) :: Rattling Noise Coming From The Car On Low Revs
My car just hit 111k miles last week! I have the 2006 sonata V6 LX, new spark plugs n new cats at 65k. So today I got to school for my final and realized the car was making a weird noise.
The noise is barely there on low revs, but when I rev a tiny bit it becomes very noticeable, and gets rattles faster to a certain point, but i think after like 2.5-3k revs kinda goes away(kinda because I don't know if its because i cannot hear it over the engine noise) and then when i let off it rattles on the rev down and then gets silent for a split sec and then back the low rev rattle.
What i understand it could be belts, pully's, the timing belt tensioner?
I have the 2006 v6, and so i think the seal for the front of the engine has issues for the year, so there is an maybe very slow oil seeping thru, it had stained the front left of the engine above the alternator, but has been like this since 50k miles when i first noticed it and no problems
And also i have 2 12" 1000w rms subs in the trunk, so could it be the alternator that can make that kind of noise?