spark plugs

I have a '99 2UZ-FE with 170k miles. Driver's side ignition coils (1,3,5,7) and plugs were replaced OEM (Denso) about a year ago by the PO. The passenger's side cylinders (2,4,6,8) were replaced 6 months ago with non-OEM aftermarkets. Today I just had the 3rd of 4 non-OEM coils fail. I clearly...

I had been experiencing some shuddering during acceleration lately, and read that it could be caused by bad spark plugs/wires/distributor cap, so I decided to pull the old plugs and put some new ones in. You can see the clean new one, and see that it may have been time to do this. The number 6...

I received a quote from a local mechanic - after I told him I was interested in changing the spark plugs, he also added a note to change the PLENUM GASKET (Lexus Plenum Gasket 17116-50010 | LexusOfKendall) without inspecting the vehicle (2003 LX470). Did a search on the forum and didn't come...

Hi all Been searching the threads and can't seem to find a thread includes how to remove a spark plug. Is it simple enough to not need a guide? Step by step guide Recommended tools to make the job easier Recommends parts to replace that are related to the spark plug replacement Sorry to ask...

Hi, I'm at 123,000 miles on a 2003 LX470. The spark plug replacement was recommended at 120,000 miles. What are the risks of delaying this replacement? Or is this something I should have done ASAP? Thanks!

Old plugs pulled, #5 looks suspicious. Tell me what you guys think.

Aloha Mudders! Im trying to diagnose a spark plug fouling issue that is happening on #1 and #2 cylinders. I first noticed the issue when I was checking the timing on the engine, had some random stumbles and my Induction Light was not giving me consistent light pulses. So I pulled the wire and...

Have any of you tried the Bando belt? Rock Auto sells the 7PK2150 belt for a whopping $7.27 vs Toyota oem for ~$85. I can get the belt & DENSO 3421 {#SK20HR11} Iridium Long-Life plugs shipped to me for under $60. The link below is from the blue room... Serpentine belt: Bando 7PK2150 =...

So as I mentioned earlier, I am new to these things. I just pulled the plugs out of the engine. Obviously I have carbon on these, which is a no no, that much I know. There also seems to be some sort of stalagtite-type features growing on it. Not sure what it is, but to explain if the picture...

From my 76 FJ40 Selling throttle and clutch pedal assemblies. They're in good shape and $50/ea. Rear body harness, $50 Spark plugs and wires for 2f $25

My old V8 just blew a plug. Yes, that is right. Blew a plug. The core of the plug ejected upwards. The thread was still in place. The inner core of the plug blew through the ignition coil, kind of exploded now. If that happens, stand still, stop engine, do not try to drive home. Because you...

Finally changing plugs/wires/disty/rotor. Partly because I've been driving the truck for two years without doing it and I have no idea when/if the PO ever did it, partly because she's running a bit uneven, and partly as prep and "rehearsal" for an overdue valve adjustment. This post is...

So my radiator starting leaking, and my valve cover gasket needed replacing, so one thing let to another. I'm doing lots of stuff (water pump, belts, thermostat, heater valve, hoses, etc.) but I thought I'd post some pics and a few lessons-learned. Here is the engine before starting any work...

Hey guys, Recently had new tires put on, and when I got the car back from the tire place, I had a CEL and vsc off/vsc trac ligth on. Ok, nbd...did a search on the forums and figured I needed to run the zero point calibration to get it back in spec. Didn't have a chance last night, drove it to...