they are under a panel by the fuel rails. they are very hard to get to.
get an obd2 scan to check for codes. many causes; tune-up, tps sensor, egr valve and dpfe sensor, o2 sensors etc... so get an engine diag. -Switch spark plugs to factory motocraft plugs. Cheep and efficient! Also eliminates spark knocking with manual transmition and hitching or hesitation. Good Luck!
The air in the combustion chamber(s) have been compressed hard enough to make it so hot that the fuel will self ignite when injected.
i know they are hard to isatallthere are no spark plug in this car. Tjere called bolt-head plugs which each take 1 hour to isntal abd they must take takr the anterlator off and i remommend to take to a shhop because it will take about 4 to install them beceause the enhine must cone out and take to s ashop
i would start wit the spark plug wires then move to the spark plugs and coil or the D cap what ever one u have! if u do all that and it keeps doing it move on to the fuel filter then the injectors after all the your problem should be taken care of!
FOLLOW THE SPARK PLUG WIRES TO THE BLOCK. AND YOU WILL FIND YOUR PLUGS. A FEW OF THEM ARE HARD TO CHANGE BUT JUST PERSIST AND YOU'LL BE FINE
A Toyota Allion has 4 spark plugs. These spark plugs are not hard to replace, and can be found in the engine, under the hood. After 2008 models, they are harder to replace.
It is pretty easy to change spark plugs on most cars. Buy a Haynes manual at an auto parts store; it will walk you though it step-by-step. The gap should be listed on a sticker either by the radiator or the underside of the hood. It is usually possible to by pre-gapped spark plugs, but you should still check them. For the 1.8t engine -> It is not too hard. Just take off the plastic cover, undo the Allen bolts around the square things, pull out the long plastic tube thing and use a spark plug socket. The gap is .028. I had the guy at the auto parts store gap the new spark plugs.
The most common things I have found in my car is the spark plugs, fuel injector and in desperate need of an oil change.
If someone who knows what they're doing changed them, it's hard to guess. If someone incompetent changed them, they may have hooked the wires up in the wrong order.
Some one got lazy and did not change them all. Or chose not too do the hard ones.
Better service you car, go to meganig, the 2-4-6-8 plugs are in front of you when you look the enging but the rest are on the back hard to get them.
Very easy. You have to pull the engine cover off. then pull the coils off and unbolt the plug.
you must remove the plenum on top of the motor to excess the spark plugs it is not hard but time consuming to say the least
The 2.5L engine has 8 plugs and it does only have 4 Cylinders...It has a dual ignition system.The 2 rear spark plugs and wires on the Driver's side are hard to get to...
See here. http://www.4x4wire.com/toyota/maintenance/tacoma_4runner_30k/maintenancep3.html#plugs use gas line to get the plugs out - they are hard to reach and this will prevent you from stripping the threads when putting the new ones in.
get a 3/8 in.drive Rachet,w/a 10in.3/8 extension,plus your spark plug Socket.that will do it!