Spark Plug Problem - Toyota Yaris Forums

TickleTimeTim · 03-27-2011, 11:13 AM

We switched out my spark plugs around 1am last night, then put everything together and called it a night. This morning when i fired it up, the car sounded loud and slow. Misfire I assume? When we made a 2am walmart run, the ONLY fitting spark plugs wal mart had were 2 copper and 2 platinum...was it possible that's what caused the bad idle? Also, when placing the spark plugs in, do they snap or pop in? maybe only 2 are in correctly? I'm not sure, but it doesn't sound good.

Any suggestions?

Did i void the powertrain warranty by switching plugs?

marcus · 03-27-2011, 11:37 AM

did you check the gap on the new spark plug.. i dont trust the manufacturers stock gap..also did you make sure you lined up the same ignition coil for each plug..

TickleTimeTim · 03-27-2011, 11:39 AM

how big do you recommend the gap should be? i pulled the ones i bought straight from package and put them in without tampering. Gonna go to auto zone and buy a full set of iridiums after work today and try this again.

marcus · 03-27-2011, 11:43 AM

i havent really check ..i believe its 1.0 mm or .039 inch

http://www.scribd.com/doc/8679181/20...al-13-Ignition

TickleTimeTim · 03-27-2011, 11:46 AM

ill do that today and hope for more luck, thanks. it's 3924 we need right?

marcus · 03-27-2011, 11:47 AM

not sure what 3924 is.. and i think we got ngk iridium on our yaris stock which is a very good spark plug dont relace it with a crappy one..

TickleTimeTim · 03-27-2011, 11:52 AM

i want the same plugs, but new. hoping auto zone carries them. i think 3924 was the fitment. when i went to get plugs i had to look it up in a phone book of spark plug sizes.

TickleTimeTim · 03-27-2011, 11:57 AM

3924 is for autolight but 5563? or something like that is ngk (that's what auto zone guy just said.)

severous01 · 03-27-2011, 12:19 PM

go get some ngk's from autozone or oriley. they're awesome and cheap.

TickleTimeTim · 03-27-2011, 01:34 PM

yeah, gonna grab some ngk's and a spark plug gap tool. then i found a place that is gonna let me give them a water pump and belt to put on for me. (the wife isn't liking the fact that every time i "fix" my car it gets worse)

....but i call that learning

TickleTimeTim · 03-27-2011, 05:26 PM

got the following codes

p0300
p0303
p0304

first is misfire right? what are other two?

TickleTimeTim · 03-27-2011, 05:28 PM

think i just found that means cylinder 3 and 4 misfiring, is 3 and 4 on my right or left when standing in front of car?

TickleTimeTim · 03-27-2011, 06:23 PM

ah ha, had the ignition plugs in the wrong sequence. dropped car off for water pump and belt to be replaced

TickleTimeTim · 03-28-2011, 08:14 PM

andddd..... it's now running squeak free after a $277 mechanic fee.

03-27-2011, 11:13 AM	#1
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	Spark Plug Problem We switched out my spark plugs around 1am last night, then put everything together and called it a night. This morning when i fired it up, the car sounded loud and slow. Misfire I assume? When we made a 2am walmart run, the ONLY fitting spark plugs wal mart had were 2 copper and 2 platinum...was it possible that's what caused the bad idle? Also, when placing the spark plugs in, do they snap or pop in? maybe only 2 are in correctly? I'm not sure, but it doesn't sound good. Any suggestions? Did i void the powertrain warranty by switching plugs? __________________ Club SHIFT

03-27-2011, 11:39 AM	#3
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	how big do you recommend the gap should be? i pulled the ones i bought straight from package and put them in without tampering. Gonna go to auto zone and buy a full set of iridiums after work today and try this again. __________________ Club SHIFT

03-27-2011, 11:46 AM	#5
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	ill do that today and hope for more luck, thanks. it's 3924 we need right? __________________ Club SHIFT

03-27-2011, 11:52 AM	#7
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	i want the same plugs, but new. hoping auto zone carries them. i think 3924 was the fitment. when i went to get plugs i had to look it up in a phone book of spark plug sizes. __________________ Club SHIFT

03-27-2011, 11:57 AM	#8
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	3924 is for autolight but 5563? or something like that is ngk (that's what auto zone guy just said.) __________________ Club SHIFT

03-27-2011, 11:37 AM	#2
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	did you check the gap on the new spark plug.. i dont trust the manufacturers stock gap..also did you make sure you lined up the same ignition coil for each plug..

03-27-2011, 11:43 AM	#4
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	i havent really check ..i believe its 1.0 mm or .039 inch http://www.scribd.com/doc/8679181/20...al-13-Ignition

03-27-2011, 11:47 AM	#6
marcus toyota View User's Garage Drives: 2007 Yaris RS Blazed Join Date: Oct 2006 Location: toronto, canada Posts: 3,637	not sure what 3924 is.. and i think we got ngk iridium on our yaris stock which is a very good spark plug dont relace it with a crappy one..

03-27-2011, 12:19 PM	#9
severous01 Drives: 2008 yaris, stripped, red Join Date: Jan 2009 Location: SE Texas Posts: 977	go get some ngk's from autozone or oriley. they're awesome and cheap.

03-27-2011, 01:34 PM	#10
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	yeah, gonna grab some ngk's and a spark plug gap tool. then i found a place that is gonna let me give them a water pump and belt to put on for me. (the wife isn't liking the fact that every time i "fix" my car it gets worse) ....but i call that learning __________________ Club SHIFT

03-27-2011, 05:26 PM	#11
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	got the following codes p0300 p0303 p0304 first is misfire right? what are other two? __________________ Club SHIFT

03-27-2011, 05:28 PM	#12
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	think i just found that means cylinder 3 and 4 misfiring, is 3 and 4 on my right or left when standing in front of car? __________________ Club SHIFT

03-27-2011, 06:23 PM	#13
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	ah ha, had the ignition plugs in the wrong sequence. dropped car off for water pump and belt to be replaced __________________ Club SHIFT

03-28-2011, 08:14 PM	#14
TickleTimeTim Free Mustache Rides View User's Garage Drives: 2007 Yaris HB Join Date: Jan 2009 Location: Arkansas Posts: 1,247	andddd..... it's now running squeak free after a $277 mechanic fee. __________________ Club SHIFT

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