spark plugs

Recently my dash lit up like a Las Vegas sign. No specific code. Later that afternoon the codes disappeared. Two days later the codes came back and I caught it with a P0305. Well that's fixable. I had a new set of Denso Iridium spark plugs and Denso Coils already in stock. So I change...

What is the right spark plug for an 83 FJ40?

About to change out spark plugs and saw a video recommending to spray the outside of the ignition coil down with silicone and let air dry. I don't see this as a common practice so thought I'd throw the question out there. Seems many are also on the fence about applying a bead of dielectrice...

Hello everyone. I have been spying on the forum for some time and have finally decided to jump in. I’m hoping someone has had a similar issue and will be able to help. I have a 77’ 40 series that belonged to my grandfather. I have some great memories shared with him as a kid bouncing around in...

Hey guys, I've been here for a long time and my old account has an email that is no longer in use so I can't get my password reset so on with a new account! Anyways, 2000 with 157,000ish miles... I've been chasing misfiring for a few months now. At this point spark plugs have been replaced...

1996 Land Cruiser, 175k miles Driving it this morning. 10 minutes from home while gently accelerating from a stop sign the engine died (it all happened smoothly and did not hiccup or backfire). I tried to start it again and it fired for less than 1 second only 1 time but died again instantly...

Hey guys, I recently replaced the spark plugs, wires, cap, and rotor. Noticed in the process that a hole was burned into the ignition coil so I replaced that as well. Went to starts it after the repairs and can't get it to start. It acts like it wants to but just won't. I've replaced the EFI...

Okay, I've been digging through all the info I can find and I can't come up with a good answer on the 200 series best practice. In short, should I preemptily swap coil packs at around 100k when I do plugs, or should I sit on it until they throw codes and replace them as they fail? I had a...

On my '99 with 150K, I recently had a misfire on the #4. I already had new OEM denso coil packs and plugs ready and installed them. Misfire was gone and it runs great. My problem is that I now regularly hear interference through my radio - ticking that varies with load and throttle position...

Hey all, hoping I could get some advice here on a chronic issue I have had on my 99 UZJ100. Vehicle Stats: Purchased: April 2014 - ih8mud listing Current Mileage: 266,682 I have meticulously kept up maintenance on the vehicle and only now am I having trouble with diagnosis and solving the...

Through a series of fortunate events, I managed to get the full history of my LX all the way back to 2003, and found it had been nearly exclusively Lexus serviced. 60 pages. But in that 60 pages, somehow Lexus had never replaced the spark plugs? I hopped right on it, got them done no problem...

My 2013 Land Cruiser now has 120,000 miles - this includes a XC trip to Utah and 3 trips to Florida in less than a year! The service manual states the spark plugs need to be changed at the 125K mile mark however what are signs to watch out for when spark plugs begin to go out? Any red flags to...

I have a spark plug (#6) on my 100 series that is seized pretty badly, I tried to put pb on it overnight but it still feels like it wins budge. I’m ready to just use my longest breaker bar and try to wiggle it out. If I happen to snap the plug what should my next move be to repair it?

Sorry if I make mistakes, I'm new here. Also I'm not a mechanical expert, I'm just a dumb kid really. 2006 Lexus Lx470 with 181k miles on the odometer Tl;DR: To understand my situation ur gonna have to read a short sequence of events: Last year I took my truck in for service with all the...

Hello Mud, I took off my spark plugs from my 92 3FE to see what condition they were in and see if everything is normal. What prompted me to do this was coolant loss so I want to triple check its not HG failure, before replacing everything in the cooling system. These plugs were put in about...

Changed the spark plugs today on my ‘84 FJ60. It’s just one of many little things I’ve been doing in the last month or two since I bought it to know that you the details are taken care of. I notice that the plugs toward the front of the engine were running hot, while those at the back were...

Running a 79 fj40, desmogged, with Weber 38 carb. Tired of rough starts, and heavy exhaust fumes all the time. Checking for exhaust leaks, and doing carb tune, valve adjustment tomorrow. Drive about 2000 miles/year. Plugs are 2 years old. Did a warm compression test today. Here are results...

I replaced all 8 of my Coil Packs this weekend with Denso packs & Denso Iridium Spark Plugs. When reading this forum I thought that I found the right torque values but, I am pretty sure that the Coil Pack bolts torque was off because I snapped the very first one off. Luckily I was able to get...

2008 LC. So I'm just over 100k in miles and took to the shop for routine maintenance. Oil change, differential fluids changed, fuel system cleaning, spark plugs replaced. When they pulled the plugs they told me that the plugs had oil on the threads, especially 1 and 8. He showed me the plugs...

Hi Guys , I recently bought a LX470 GCC specs (185,000km) ODO ,was wondering if any one could advise the best spark plugs as i am doing a major service.So far what i have researched seems like the OEM Denso are recommended. Thanks :)