Just did a header change and a spark plug change at the same time. I had a few exhaust leaks that I finally have gotten fixed but the engine is still running under power. I put new plugs gapped at .52 but when I came back and checked the old plugs they all seem to be set at .48. My car is a 2000 V-6.
I am almost sure they need to be at .52 as you said.
__________________ 2003 REDFIRE COBRA #3938 of 5082 @ 05/27/2003 1 of 414
MGW Shifter, Stingers, JLT, SS Inserts, MM FLSFC & CC Plates, SS Lines, H&R Race springs, IRS Brace, MRT Hood Struts ME.com Member #29 - 400rwhp/380rwtq
I put the old plugs back in the car and it made no real difference. The car has a slight miss in the idle and no power at all when I drive it. I cannot hear any noticeable leak in the exhaust anymore. Could it possibly be that now that I have fixed the exhaust leak that backpressure from bad Cats would cause it to do this?
Bad cats will make a loss in power. I dunno if it will make it as sluggish as you are describing..but sure isn't helping lol.
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"I'm not driving too fast...just flying too low"
Mine:
-87 ranger- broke
-03 SB Cobra vert- 2552 of 5082 Born 02/25/03
Our's:
90 7up vert - new project