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Thread: Spark Plug?
06-17-2009, 04:28 PM #1
How do you know when it is time to change your spark plugs. I have 89,000 miles on my truck and never have changed them. Is it time? or should they be fine?
2005 Chevy 2500hd 4x4
5% tint all the way aroung
325/60/18 Toyo Open Country At's
18in kmc xd monster series
Rough Country leveling kit
06-17-2009, 04:42 PM #2
G.M. said they are good for 100k.For me I changed them at 70k,along with new Wires.It come down to how your truck is running,good,bad.I would said pull a couple of them and see how they Look.
06-17-2009, 05:00 PM #3
It seems a lil sluggish at times. But idk. It might be because its such a big engine and a heavy truck.
06-17-2009, 05:30 PM #4
06-17-2009, 05:38 PM #5
Idk about the plugs bug if your gonna get wires I suggest the MSD wires
Im gonna change my plugs and wires soon. I plan on going with Bosch +4 Platiums and MSD wires... it seems like a very popular pairing2000 GMC Sierra Ext. Cab 5.3L
06-17-2009, 07:24 PM #6
Um they were never cleaned that i know of.
06-17-2009, 07:36 PM #7
- Join Date
- Jan 2009
- Norwalk, Ohio
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I am getting ready to change my spark plugs and wires on my S-10, and I just hit 50,000 miles on it. It is running like crap, so I figure it's time for a tune up. In the past when I have had injector problems on newer vehicles, it will get to a point where it will seem like you lose about 50-75 hp and it would almost cut out at an idle. Hopefully a tune up cures your problems, because once you get into the fuel system your talking some good money there.2004 Chevy Colorado
LS1 5.7 swap/TBSS rear axle swap
06-21-2009, 12:04 PM #8
- Join Date
- Mar 2009
i just put in some Bosch Platinum+2 plugs , and some standard autolite wires from a local advance auto store, the guy actually called around and compared prices to get me the best deal. i swear i'm probably getting twice the mileage now. i changed them at 95,000 i'm sure previous owner never changed em, they were burnt to a crisp. (05' 2500hd 6.0. silverado)
Last edited by TroyT; 06-21-2009 at 12:13 PM.
06-21-2009, 03:35 PM #9
I've used those Bosch Platinum +2 plugs before, they worked well on my truck. It's probably not a bad idea with the E10.BAMES™
1999 GMC Sierra
5.3l 325 ci Vortec
Vortex dual exhaust
2003 GMC Yukon 5.3
1994 GMC Sierra 5.7
06-21-2009, 05:09 PM #10
Throw some SeaFoam through your engine and it will clean out all the carbon buildup. Cleaning the MAF and throttle body is a good idea too. Change your oil, put in a new fuel filter then throw in some new plugs. You should be very happy with the newfound pep!Black Bear Performance- Custom Tuning Solutions
Authorized EFILive and MAGNACHARGER seller
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