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Old 08-03-2008, 07:30 PM   #1
blondiez24gt
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Best parts for tune up?

I was getting ready to do a tune-up on My new to Me 99GT. I was wondering which spark plugs work the best with the Grand Am's? Just the regular AC Delco's, or what? Which plug wires are cheap, and still work good? I was also going to put a K&N air filter in it. Are the K&N's worth it, or does the frams, ac delco's work just as good? Any other things I should do to help things out? Thanks for any help!
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Old 08-03-2008, 07:34 PM   #2
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AC Delco for plugs/wires, only real advantage to getting a K&N drop in is not having to change it as often.
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Old 08-03-2008, 07:50 PM   #3
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I figured ac delco would be the best bet for plugs, and wires. Thanks for the help.
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Old 08-03-2008, 09:27 PM   #4
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ACDelco #41-101 is the factory Iridium plug for the 3400, I don't know if they are listed for the older models, but they work in any of the 2nd and 3rd gen 60V6s.
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Old 08-03-2008, 09:32 PM   #5
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so are the ac delco iridiums better than the cheap copper ac delco's?
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Old 08-03-2008, 10:03 PM   #6
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Quote:
Originally Posted by DrFabulous View Post
only real advantage to getting a K&N drop in is not having to change it as often.
how about not having to change it all. it will still have to be cleaned though.
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Old 08-04-2008, 07:46 AM   #7
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Quote:
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how about not having to change it all. it will still have to be cleaned though.
Cleaned, changed, whatever. Its way more work to clean the thing than to put a new one in
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Old 08-04-2008, 11:09 AM   #8
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so are the ac delco iridiums better than the cheap copper ac delco's?
you do not want to use the cheap copper delco's in our 3400s, only use either the professional platinums or the iridiums, the NGK-TR55IX plugs are great also

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Old 08-04-2008, 04:00 PM   #9
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you do not want to use the cheap copper delco's in our 3400s, only use either the professional platinums or the iridiums, the NGK-TR55IX plugs are great also

peace
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im sorry professional platinum plugs??? as opposed to semi-pro? dont use any of those, as they will cost ALOT more money, and seriously gain you nothing in performance, only the double plat plugs will get you a longer plug life...100k (supposedly) as opposed to 20-40 on a copper plug. the copper plugs work just fine, are very affordable and u can use the extra money to but the much needed rest of the stuff so you dont scrimp on it. you should look at good quality stuff, AC delco coppers are an R44LTSM6 plug, get any descent O2 sensor, i like the ac ones or the delphi...bosch is ok, PCV valve, just a good filter, whatever you want, clean the MAF with MAf cleaner, clean the TB and open the TB and give the inside upper a good spray with some carb cleaner, then make sure the EGR hole isnt plugged, you can even take the old EGR off and clean the hole of all the carbon deposists with a pick and some carb cleaner, just make sure you have a good spare EGR gasket, also use a good fuel filter, ACDelco or Wix, good wires like AC Delco, Borg warner, or some MSD or Taylor, then some dielectric grease for the spark plug wire boots on both ends. After that take your battery off for about 2 hours to power down the comp, then put the cables back on, and the car will have then reset all of its learned fuel trims that it used to run...doing this helps alot, because even though the car has the ability through the sensors to compensate for a better running engine, itll be easier to start from zero than to start from a learned condition. then i would dump in some good ol B 12 into the gas tank...a hole liquid can. If you want to get the valves cleaned on teh abck and get alot of the crap out of the inside of the upper intake, take the PCV plug out of the intake hose(rubber one before the TB, then put a vacuum line from there into a luquid can of GM top engine cleaner or some Chevron engine cleaner liquid and let it run til the bottle is empty. ull prob need to rev the engine a little, but itll help alot also. You dont have to do all that, but for a good tune up, most of that is what i would recommend. it would take a good day to do all of that really. that also helps alot with lost fuel economy and performance, and keeps the rest of the system in good order, including the catalytic converter and the combustion chamber
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Old 08-04-2008, 08:41 PM   #10
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If you want to get the valves cleaned on teh abck and get alot of the crap out of the inside of the upper intake, take the PCV plug out of the intake hose(rubber one before the TB, then put a vacuum line from there into a luquid can of GM top engine cleaner or some Chevron engine cleaner liquid and let it run til the bottle is empty. ull prob need to rev the engine a little, but itll help alot also.
Where do you get that GM top end cleaner, I'd like to clean my injectors and such myself if i can to save some cash rather than going to the dealer. I've done seafoam several times but that doesn't seem to help. Give me some good instructions on how to do this, so I don't do something wrong.
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Old 08-05-2008, 09:12 AM   #11
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you can get it from any GM dealer, just make sure to ask for the LIQUID not the spray. or you can use the chevron stuff...same thing, you can get it at any parts store
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Old 08-05-2008, 03:32 PM   #12
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Cleaned, changed, whatever. Its way more work to clean the thing than to put a new one in
this is true, but it does save you money in the long run.
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Old 08-05-2008, 06:20 PM   #13
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Quote:
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this is true, but it does save you money in the long run.
Meh, who cares.... not like anyone on here is actually running a drop in filter still.... are they?
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Old 08-05-2008, 06:51 PM   #14
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Meh, who cares.... not like anyone on here is actually running a drop in filter still.... are they?
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Old 08-28-2008, 03:15 AM   #15
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at rock auto in their parts catalog they have to wire sets listed. can any verify the oem wires. it doesnt say at rock auto.

ACDELCO Part # 9726UU {#88862391}
Spark Plug Wire Kit

$26.79 $0.00 $26.79
ACDELCO Part # 726UU {#12192462}
Spark Plug Wire Kit

$46.79 $0.00 $46.79
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Old 08-28-2008, 06:04 PM   #16
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Well I got a K&N filter from tejohnson. I'm gonna order some taylor thundervolt 8.2mm wires next month, and some iridium spark plugs. I was reading up on the seafoaming the top-end of the engine. I'll prolly do that before I change the plugs. I'll prolly put some seafoam in the oil, and gas too. Its got a new pcv valve in it. I'm not sure if it needs a new 02 sensor, or not. How can You tell if its bad? I don't want to put a new one on if the one on its good. So heres My tune up list.


K&N filter (already installed)
new pcv valve (already installed)
iridium plugs (which brand should I get?)
taylor thundervolt 8.2mm wires
seafoam in oil, and gas
seafoam top of engine
o2 sensor if its needed

Does that sound like a good list?
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Old 08-28-2008, 06:14 PM   #17
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im sorry but i have to say that I hate bosch o2 sensors... they arent the most accurate...

go for a denso o2 sensor
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Old 08-28-2008, 06:48 PM   #18
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or an ac delco...i can hook you up with a new one for a good price...
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Old 08-28-2008, 07:01 PM   #19
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How do You test if the o2 sensor is good still? I don't want to replace it if its good.
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Old 08-28-2008, 07:37 PM   #20
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i dont think u can. seeing as how u have a '99 id assume u have about 100k on the car and O2s only last about 100 thousand so it prbly is time to change it.
experts definetly chime in though...
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