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 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 RepliesPrius (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.
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.
Impala - Chevrolet :: Auto Transmission Jerks When Changing Gear
On my 2003 Chevy Impala with 127,000 miles the car jerks like someone has hit you in the rear end, it usually happens from first to second and is becoming more frequent. A recent transmission service had no effect
View 2 RepliesChevrolet - 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.
View 13 RepliesToyota - 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?
Impala - Chevrolet :: Rear Windshield Shattered Out
My sister was getting into her car yesterday and as she closed her door her rear windshield shattered out of nowhere. Were trying to figure out how this happened ??
View 1 RepliesImpala - Chevrolet :: 2003 - Rear Tail Lights Not Bright Enough
Today I noticed when I was parking at work that my back tail lights don't seem that bright. When I apply the brakes and such or the backup lights are very bright, but just the normal tail lights didn't seem to come off as that bright. At night they may appear brighter but this morning in cloudy overcast sky's with some light snow falling I am not sure if the person behind could have seen my taillights at all. I have a 2003 Impala LS, it's just over 102,000 miles. Is there a way to test to see if your back taillights are bright enough or is there a way to increase how bright they are when on?
View 15 RepliesFord Transmission :: 4r44e - No Reverse After Changing Rear Spark Plug On Passenger Side
After changing the rear spark plug on the passenger side of my wife's truck ,the reverse went out. Its a 2000 4x4 ranger with a 3.0, and I think the 4r44e trans. Any way she said the check engine light came on and it was running rough. I determined that it had a bad plug changed it and she ran fine. I put her in reverse to see if the motor was still stumbling.
I could her the trans shift to reverse and the motor stayed running smoothly. When I took my foot off of the brake she was barely moving, like it was in 4 low. I stopped to see if there was a vac line that might have been pulled off , or any wires unplugged. Nothing. I started her up and put into reverse. no sound no anything it was the same for neutral. you cant hear any click nothing. I drove her and the forward gears are fine od works drive to 2nd has a engine brake feel. and 2nd to 1st has a engine brake feel.
I have never had a issue with this truck till I changed the spark plug. I think that it is a coincidence that that happened or I unplugged something. Any other way before I pull the pan off.
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.
View 14 RepliesSC/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.
View 2 Replies