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01-03-2006, 03:13 PM
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#1
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what now?
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Certifiable
Join Date: Sep 2005
City: Lancaster
State: Kentucky
Posts: 50
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Just changed to headers on my car and did a spark plug change while I was at it and now the car is running like crap. I ran the car up the road and when I came back the number 4 header pipe is hot as hell and the rest are not nearly as hot. What could cause this? Could a bad catalytic converter cause this? |
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01-03-2006, 03:20 PM
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#2
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Re: what now?
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,125
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if you just swaped headers and thats it (other than a standard spark plug change) I would review the install, check for leaks and what not.
Double check the spark plugs and inspect their gap. I hope you didnt pull all the wires off and then stick them all back on... possibly in the wrong order.
__________________
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
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01-03-2006, 03:26 PM
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#3
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Re: what now?
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Certifiable
Join Date: Sep 2005
City: Lancaster
State: Kentucky
Posts: 50
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Im fairly certain there are no leaks ...the reason I went to headers was because there was a noticeable leak up front and I figured the stock manifold was cracked and my gas mileage went from like 20 in the city to 17. Im also fairly certain that I didnt mix up the plug wires because I only pulled them off one at a time. |
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01-03-2006, 03:57 PM
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#4
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Re: what now?
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WTF^^...
Join Date: May 2003
City: Hoover / Florence
State: Alabama
Posts: 27,125
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if you only pulled them off one at a time then chances are its not that, but double check to make sure. check the bolts on the headers, when they get hot and cool again they can become a bit loose.
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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
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01-03-2006, 05:59 PM
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#5
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Re: what now?
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I need bolts
Join Date: Oct 2004
City: Dallas PA
State: Pennsylvania
Posts: 3,482
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Look into locking header bolts. They will svae you some trouble.
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01-03-2006, 07:19 PM
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#6
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Re: what now?
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Certifiable
Join Date: Sep 2005
City: Lancaster
State: Kentucky
Posts: 50
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Thanks Ill check into those. I ordered off road h pipes for it so maybe that may fix it too. I appreciate all the help. |
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01-03-2006, 11:15 PM
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#7
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Re: what now?
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No more obstacles
Join Date: Jul 2005
City: Marin County, Nor Cal
State: California
Posts: 893
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maybe not all the cylinders are firing. compare the threads on the previous plugs to the ones you just installed and make sure they have the same thread length.
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99 Cobra: flowmasters, 18x9.5 cobra R's, soon to be tuned and geared. daily driver
99 V6:in avatar, Mac Cai, true duals/flowmaster 40's ,UDP, custom tuned, bullitt suspension 18" wheels...taken by mother nature 
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01-06-2006, 06:59 PM
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#8
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Re: what now?
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Registered User
Join Date: Jan 2006
City: CHico
State: California
Posts: 29
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Last edited by Dman; 01-06-2006 at 07:08 PM.
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