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2015 Subaru WRX STI
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Discussion Starter #1
This may be a pretty stupid question, but what exactly do they do during a tune-up? I was told that all they really do is change the spark plugs and check some things over to make sure everything is working right.
 

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93 BMW 525i
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395 Posts
On a fuel injected car, thats usually about it.

On the high end, it can consist of:
spark plugs
air filter
fuel injector cleaning or dumping fuel injector cleaner in the tank
resetting the idle
reading any check engine codes/clearing codes
checking the timing

But most often if you call an average joe shop for a quote it will consist of only the spark plugs. Now, if you're talking about say a 60k mile service package, that can include a lot more things.
 

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2015 Subaru WRX STI
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Discussion Starter #3
So would you recommend just getting the spark plugs replaced, and maybe using some SeaFoam?
 

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93 BMW 525i
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My tune ups that I do usually depend on if the car is a garage queen like my BMWs or just a mule like the carmy.

For a mile mule I usually clean the throttle body/IAC motor, pull a spark plug and check for signs of obvious problems/fouling, and possibly run some seafoam/fuel injector cleaner in the tank. I havent actually TRIED seafoam yet, but I have 2 cans of it in my garage that I've been waiting to use, and I've heard good things.

On a garage queen or someone that insists, I'll do all of the above and spark plugs, possibly wires if they've been rubbing on something on the outside. I've seen some people (namely my family) that NEVER take care of their cars, and I see some spark plugs go a pretty long time without any problems. I'm not arguing against changing plugs, but I fail to see it being worth it on gas mileage increases alone. If it starts misfiring, I'll change the plugs then. Thats my $0.02 on replacing plugs in a Camry.

Oh, and PCV valve, almost forgot that one. Yeah, I'd do that every time. If you take your car in for a tune up, make sure they do that, they like to forget that one.
 

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2015 Subaru WRX STI
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Discussion Starter #5
What I would probably do once I notice my car not running too smooth, is get them to only change the spark plugs. And i'll do some cleaning myself, in addition to using some fuel additive.

btw, im guessing the SeaFoam, like any other cleaner, goes in a near-empty fuel tank prior to filling up right?
 

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98 Camry XLE V6
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instructions are on the bottle of seafoam.

LOL after using seafoam through the brake booster and crank case you should change the plugs as they may get coated in carbon.

so basically a major tuneup consists of air filter, plugs, check/flush fluids, and just an overall inspection of everything. Maybe change the timing belt/accessory belts/waterpump and seals.

check the toyotaowners site, enter your mileage and you'll know what you need to do.
 

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2015 Subaru WRX STI
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Discussion Starter #7
nodrogkam said:
instructions are on the bottle of seafoam.

LOL after using seafoam through the brake booster and crank case you should change the plugs as they may get coated in carbon.

so basically a major tuneup consists of air filter, plugs, check/flush fluids, and just an overall inspection of everything. Maybe change the timing belt/accessory belts/waterpump and seals.

check the toyotaowners site, enter your mileage and you'll know what you need to do.
I have a cone, and I just cleaned it last week, so no need to replace that. Coolant, washer fluid, brake fluid are all fine, not sure of the rest. And I got my timing belt replaced a week or two ago, along with the waterpump.

btw, what was the LOL for? :rolleyes:
 

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98 Camry XLE V6
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good stuff then.

i originally chuckled at "So would you recommend just getting the spark plugs replaced, and maybe using some SeaFoam?"

but that was because i read too fast. As long as you use the seafoam before you change them plugs you're fine. :thumbup:
 

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07 XLE Camry
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you can put sefoam in the brake booster? where else can you use seafoam??????

i read on another thread here that using seafoam in your trans to clean it or something before you change the oil

would this really work?

use some seafoam the other day to clean a TB and it worked great!!
i used BG products before




nodrogkam said:
instructions are on the bottle of seafoam.

LOL after using seafoam through the brake booster and crank case you should change the plugs as they may get coated in carbon.

so basically a major tuneup consists of air filter, plugs, check/flush fluids, and just an overall inspection of everything. Maybe change the timing belt/accessory belts/waterpump and seals.

check the toyotaowners site, enter your mileage and you'll know what you need to do.
 

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98 Camry XLE V6
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brake booster is one of the most effective places to use seafoam. seafoam has a transmission formula too.

all flushes do is thins out the oils and breaks apart any debris, and makes the oils less viscose so it can flow out easier.
 
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