Changing Spark Plug Wires

Is changing spark plug wires on a 03 2.7 4 cylinder necessary when putting in new plugs and why? Never changed wires on my wifes 04 4runner.

 

I suggest following the manufacturer's recommended interval. I'm not sure what that is for your vehicle, but I'm sure a quick search here would give you the answer you are looking for. Try leveraging the Advanced Search tool under the Search tool.

Roughly speaking, change the wires when changing the plugs.

 

Where should dielectric grease be applied on the coil packs? Picture would be wonderful if you have one as well.

 

I don't have a pic handy, but its simple.
put a small amount of grease on your finger tip and then apply it to the end of the boot before you put connect it to the plug. it helps keeping moisture away from plug, and helps the wire and plug from forming rust and does not impede current.
you should change plugs at max every 30,000 miles.
i change wires every 60,000.
wires will wear out with cold and heat, become vulnerable to moisture, and do not work as well.
they don't cost alot, use only oem, and be happy you live in a age where you dont have to tune a car every 12 months or 12,000 miles.

 

Good point on the grease.

 

I remember those days! And 100K on an engine was unusual.
I can still see the "blue smoke". 20 gallons of gas and a quart of oil.
Of course gas was only .30 cents per gal. and oil was cheap.
Fast cars and loose women! Big back seats.
The younger generation does not know what they MISSED.
GREAT TIMES.

 

Yeah, the tuneups came more frequently, but access to everything was so much better. With the advantages of modern innovations came even busier engine compartments.

 

I just ohm checked mine and they came out high so I replaced them. 2-3k normal, as high as 8-12k. Mine came out bad on two of them. Bought OEM wires.

My 1st car in high school was a 1967 Chevelle SS 396, and boy was it a blast to cruise. I swore I would keep it and I still have it to this day. I don't need a fast Tacoma when my car is fast enough.

 

Holy @*#%! That 97 Toyota Tacoma looks straight off of "Back to the Future" at the end of the movie. Brought me back a bit to my childhood!

EDIT:
Lol, I just read the one of the quotes underneath the post. Apparently I am not the first to notice.

 

Thanks

That movie is the reason I bought my toyota in the first place.

 

my first was a 72 mustang mach1 with a 351c. 4 thousands pounds of steel.
she was fast but after about 8,000 miles and a tendency to pull to the right,
right into every gas station we went past. and at 10,000 miles it was time for everything, points, plugs, condenser, timing, air filter, fuel filter, wires,

 

Yeah, Rodeo, a very nice truck! I appreciate older vehicles that are well maintained. Yours fits the bill!!!

Funny thing: that 85 Toyota (I think) was a great looking truck. Nice lines!! When I saw that truck, I had the same thought: buy one. I'll bet that moment got alot of people thinking about black Toyotas!!

 

yea, that movie really made those trucks hot in 1985, dealers would not budge a inch from sticker. and then the stupid import quotas pushed up prices.