Idle RPMs between 500-750
12-23-2010, 05:43 AM
#13
What do you mean by half was still left on the spark plug? If you mean half of the spring contact from the old wire is still on the plug and you just rammed a new wire over it or just put the rest of the broken wire back on I would say thats more than likley the problem. If the plugs were getting real bad some of the older plugs may cause you to have a few sloppy cylinders. You really should change the rest of the plugs IMO and replace the broken wire or maybe all of the wires. Also some of the new plugs may be gapped different than the older plugs still in the engine. If you are new to working on stuff and have little expereince I would HIGHLY recommend using a torque wrench to torque the spark plugs to spec because these heads have a reputation for blowing out plugs.
Last edited by uberstang1; 12-23-2010 at 05:47 AM.
12-23-2010, 09:03 AM
#14
5th Gear Member
Join Date: Mar 2008
Location: NJ
Posts: 2,312
+1 op i would get all new fresh stuff in there first. And i wouldnt say you need a new iac. A lot of the time they just get a lot of crap in them and just need to be cleaned out. Im betting on this being your problem.
12-23-2010, 10:05 AM
#15
Thread Starter
Join Date: Oct 2010
Location: PA
Posts: 42
Hey guys, thanks for all the replies, im changing the rest of the plugs today, and dont plan on buying a new IAC, just cleaning. When i pulled the old plugs out, seems like the plug was kinda corroded. Does that mean the car is running lean?
12-23-2010, 11:18 AM
#16
5th Gear Member
Join Date: Mar 2008
Location: NJ
Posts: 2,312
if the plug is white its running lean. If its dark and smells like gas its rich and if its tanish its burning good. There are other ways to look like at certain parts of the plug but thats the basics of it. Either way if you haven't changed them in a while it needs to be done. But as i said before the way you explain the rpms dropping and going up is very commonly caused by the iac.
12-23-2010, 03:18 PM
#17
Thread Starter
Join Date: Oct 2010
Location: PA
Posts: 42
i changed them all, and the idle is not how it was before, but closer. In the process of changing the plugs, i broke another boot of the wire, so i am changing the wires next, and hope that helps. Do you guys have any favorite wires that you like?
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