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Functionista
Join Date: Jul 2011
Location: CO
Posts: 7,717
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Another vote for coil pack. Aftermarket ones work better than Ford's own. At least from my Ford Expedition 5.4 experience.
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Jeff 74 911, #3 I do not disbelieve in anything. I start from the premise that everything is true until proved false. Everything is possible. |
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05-21-2013, 07:17 AM
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I had the same problem on an '02 4.6. It was one coil pack, then another. Ended up just replacing them all.
A few thousand miles later the oil pressure went to zero then boom.
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Randy '87 911 Targa '17 Macan GTS |
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05-21-2013, 07:29 AM
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Registered
Join Date: Sep 2009
Location: North of You
Posts: 9,160
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COP. Feels like a misfire or a tranny shudder. But the CE light should be coming on...
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"A machine you build yourself is a vote for a different way of life. There are things you have to earn with your hands." |
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05-21-2013, 08:13 AM
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You do not have permissi
Join Date: Aug 2001
Location: midwest
Posts: 39,824
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obd2 laptop software - Google Search
Some are free and some close to it. Worth a shot. MIL light should illuminate for a second with key on engine off, unless burnt out. Check all big connections of course and wiggle while running. |
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05-21-2013, 08:57 AM
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Registered
Join Date: Dec 1969
Location: chula vista ca usa
Posts: 5,695
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If looking for software make sure that the "advanced diagnostics" are included otherwise you might as well go to Pep Boys or AutoZone and all you'll get are generic codes and some donot allow you to clear codes. These modules are generally $50 and up for each one. The ability for monitoring when driving is important especially if you have a problem that comes and goes. Also ask how they handle laptop upgrades and if you can move the software to another computer if yours breaks. As with most things, you'll get what you pay for.
As a side note, about a year ago I wanted to get my wife's Caddy checked for a SES light and all 4 auto parts stores said they were not allowed to do that any longer under CA law? Said you had to have a "repair" license and not just sell parts? Last edited by John Rogers; 05-21-2013 at 10:42 AM.. |
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05-21-2013, 09:14 AM
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Retired in Georgia
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Quote:
I recall that engine had a composite intake manifold (not metal)? Lots o'problems with that, and I think they went back to metal versions in later years.
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I've got five kids, an Italian wife, and I (used to) write about lawn mowers. You think you have problems? -Robert Coats |
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05-21-2013, 11:50 AM
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Registered
Join Date: Jul 2003
Location: Valencia Pa.
Posts: 8,844
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The plastic intake manifolds will leak anti freeze , that will then weep down into the spark plug wells and cause missfires as well. I tried to re-gasket a few, but they still leaked. I just replace them when I see them leaking coolant now.
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No left turn un stoned |
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05-21-2013, 01:32 PM
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1987 Porsche 911 Targa 3.2 
1991 Porsche C4 Coupe 3.6 [8/2001 ~ 2/2006]
