Help! Sudden miss in 4.6 (97 T-Bird)

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CarGuru > Ford > Help! Sudden miss in 4.6 (97 T-Bird) 6 April 2005 16:55:07

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Help! Sudden miss in 4.6 (97 T-Bird)
F.H. 5 April 2005 02:25:03
	While driving it just started to miss a little then got worse. Service engine light started blinking. Made it home OK but it's not drivable now. You could nurse it along for a few blocks but it shudders and pops. New one for me. Bad gas? Fuel filter? Any help greatly appreciated. Frank
		Add comment


Guest 5 April 2005 02:59:13 [ permanent link ]
	On Mon, 04 Apr 2005 22:25:03 GMT, "F.H." <connectu2@verizon.net> wrote: While driving it just started to miss a little then got worse. Service >engine light started blinking. Made it home OK but it's not drivable >now. You could nurse it along for a few blocks but it shudders and pops. > New one for me. Bad gas? Fuel filter? Any help greatly appreciated.> Frank fucked spark plug hurc ast
		Add comment


Tom 5 April 2005 03:34:41 [ permanent link ]
	you have a bad coil. to find the bad one, unplug each coil till you do not notice a difference , that is the bad one "F.H." <connectu2@verizon.net> wrote in message news:39j4e.23467$k66.15421@trnddc03...> While driving it just started to miss a little then got worse. Service> engine light started blinking. Made it home OK but it's not drivable> now. You could nurse it along for a few blocks but it shudders and pops.> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.> Frank
		Add comment


F.H. 5 April 2005 03:40:01 [ permanent link ]
	tom wrote:> you have a bad coil. to find the bad one, unplug each coil till you do not> notice a difference , that is the bad one If I get someone to hook up a computer will it diagnose the problem? "F.H." <connectu2@verizon.net> wrote in message> news:39j4e.23467$k66.15421@trnddc03... While driving it just started to miss a little then got worse. Service>>engine light started blinking. Made it home OK but it's not drivable>>now. You could nurse it along for a few blocks but it shudders and pops.>> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.>> Frank
		Add comment


F.H. 5 April 2005 03:55:08 [ permanent link ]
	hurricane 575 @ihotmail.com wrote:> On Mon, 04 Apr 2005 22:25:03 GMT, "F.H." <connectu2@verizon.net>> wrote:> While driving it just started to miss a little then got worse. Service >>engine light started blinking. Made it home OK but it's not drivable >>now. You could nurse it along for a few blocks but it shudders and pops. >> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.>> Frank> fucked spark plug> hurc ast Less than 2000 miles on this set and it just passed smog.
		Add comment


Guest 5 April 2005 04:54:26 [ permanent link ]
	On Mon, 04 Apr 2005 23:40:01 GMT, "F.H." <connectu2@verizon.net> wrote: tom wrote:>> you have a bad coil. to find the bad one, unplug each coil till you do not>> notice a difference , that is the bad one> If I get someone to hook up a computer will it diagnose the problem?> read codes and preform a power balance test hurc ast "F.H." <connectu2@verizon.net> wrote in message>> news:39j4e.23467$k66.15421@trnddc03...> While driving it just started to miss a little then got worse. Service>>>engine light started blinking. Made it home OK but it's not drivable>>>now. You could nurse it along for a few blocks but it shudders and pops.>>> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.>>> Frank
		Add comment


Scott 5 April 2005 06:49:44 [ permanent link ]
	<hurricane 575 @ihotmail.com> wrote in message news:veh351lm8vfqt6fofei705696oddmgdaeq@4ax.com...> On Mon, 04 Apr 2005 22:25:03 GMT, "F.H." <connectu2@verizon.net>> wrote:> While driving it just started to miss a little then got worse. Service>>engine light started blinking. Made it home OK but it's not drivable>>now. You could nurse it along for a few blocks but it shudders and pops.>> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.>> Frank> fucked spark plug> hurc ast Surely, some villiage is missing their idiot!
		Add comment


Rodney 5 April 2005 08:00:02 [ permanent link ]
	On Mon, 04 Apr 2005 19:49:44 -0700, Scott wrote: <hurricane 575 @ihotmail.com> wrote in message > news:veh351lm8vfqt6fofei705696oddmgdaeq@4ax.com...>> On Mon, 04 Apr 2005 22:25:03 GMT, "F.H." <connectu2@verizon.net>>> wrote:>> While driving it just started to miss a little then got worse. Service>>>engine light started blinking. Made it home OK but it's not drivable>>>now. You could nurse it along for a few blocks but it shudders and pops.>>> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.>>> Frank>> fucked spark plug>> hurc ast> Surely, some villiage is missing their idiot! Well Scott, I would not say they are missing him. Rodney ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =----
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Rodney 5 April 2005 18:28:09 [ permanent link ]
	On Mon, 04 Apr 2005 23:40:01 +0000, F.H. wrote: tom wrote:>> you have a bad coil. to find the bad one, unplug each coil till you do not>> notice a difference , that is the bad one> If I get someone to hook up a computer will it diagnose the problem?> Probably not, unless it is a true miss. Best approach is what Tom suggested to you. Rodney ----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =----
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F.H. 6 April 2005 05:55:28 [ permanent link ]
	Scott wrote:> <hurricane 575 @ihotmail.com> wrote in message On Mon, 04 Apr 2005 22:25:03 GMT, "F.H." <connectu2@verizon.net>>>wrote: While driving it just started to miss a little then got worse. Service>>>engine light started blinking. Made it home OK but it's not drivable>>>now. You could nurse it along for a few blocks but it shudders and pops.>>> New one for me. Bad gas? Fuel filter? Any help greatly appreciated. Frank fucked spark plug hurc ast Surely, some villiage is missing their idiot! Wouldn't want to have bet on this but after a fuel filter, two new coils (one to be returned after the check clears) a lot of cussing and a couple skinned knuckles I replace the plugs and it fixed the problem. The old plugs were Bosch Platinum and I can't tell anything from a visual but maybe I can test them somewhere. As far as burn goes they look perfect (always have with this engine) and I just put them in a couple months or so back just before a smog check. Is this rare? Seems so. Frank
		Add comment


Tom Adkins 6 April 2005 06:05:47 [ permanent link ]
	F.H. wrote: If I get someone to hook up a computer will it diagnose the problem? The "computer" will only identify the cylinder(s) that are not firing, either through a misfire code or a power balance test. Once the "bad" cylinder(s) is identified, you will have to check for compression, spark, and fuel supply to that cylinder. If the miss started suddenly, the problem is likely a dead spark plug, a dead coil, or a dead injector. Another possibility, if the miss developed over a period of time, is a spark plug wire arcing through the spark plug boot. You can identify the missing cylinder by unplugging the electrical connector on the injectors one by one with the engine running. You will notice an RPM drop or a worsening miss. If you find one that makes no difference, that's your dead cylinder. Pull your spark plug wires off of the spark plugs and check for oil on the boots and for signs of arcing, usually grey spots and pinholes on the side of the boots or grey pencil like lines out of the boot opening. If there is oil on the boots, the valve cover seals are leaking and will need replaced along with the wires. Remove the spark plugs and look at them. The plug in the dead cylinder may look either cleaner or dirtier than the rest. You can rule out the spark plugs by replacement, they are inexpensive and probably needed anyway. About $16 max. You can test for spark at each wire with an inexpensive Spark Tester. It looks like a spark plug with a clip on the side. No spark points to a dead coil pack. (This will usually cause a miss on 2 cylinders). If the plug wire and spark plug on the "bad" cylinder are ok, and there is spark present, you likely have a dead injector. The above steps should locate your miss. Low compression will cause a miss, but it is uncommon. If you have access to a compression tester and know how to use it, it can't hurt to check. Another possibility is a PCM not triggering a section of a coil or an injector, again this is not common. Hope this helps, Tom
		Add comment


Tom Adkins 6 April 2005 06:48:46 [ permanent link ]
	Wouldn't want to have bet on this but after a fuel filter, two new coils > (one to be returned after the check clears) a lot of cussing and a > couple skinned knuckles I replace the plugs and it fixed the problem. > The old plugs were Bosch Platinum and I can't tell anything from a > visual but maybe I can test them somewhere. As far as burn goes they > look perfect (always have with this engine) and I just put them in a > couple months or so back just before a smog check. Is this rare? Seems > so.> Frank> Not rare at all. Bosch Platinum plugs seem to cause driveability concerns in Ford products. I can't speak for other vehicles, although I will not use them in anything. For all of the promotion, hype and cost Bosch plugs are IMHO worthless. If you had mentioned this in your first post you would have probably been bombarded with replies about it.. I hope you used Motorcraft plugs as replacements Glad you found the problem.
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Jr 6 April 2005 16:55:07 [ permanent link ]
	Had same problem on my '93 Crown Vic w/4.6L, bad plug , or plugs. "F.H." wrote: Scott wrote:> > <hurricane 575 @ihotmail.com> wrote in message> On Mon, 04 Apr 2005 22:25:03 GMT, "F.H." <connectu2@verizon.net>> >>wrote:> While driving it just started to miss a little then got worse. Service> >>>engine light started blinking. Made it home OK but it's not drivable> >>>now. You could nurse it along for a few blocks but it shudders and pops.> >>> New one for me. Bad gas? Fuel filter? Any help greatly appreciated.> Frank> fucked spark plug> hurc ast> Surely, some villiage is missing their idiot!> Wouldn't want to have bet on this but after a fuel filter, two new coils> (one to be returned after the check clears) a lot of cussing and a> couple skinned knuckles I replace the plugs and it fixed the problem.> The old plugs were Bosch Platinum and I can't tell anything from a> visual but maybe I can test them somewhere. As far as burn goes they> look perfect (always have with this engine) and I just put them in a> couple months or so back just before a smog check. Is this rare? Seems so.> Frank
		Add comment

CarGuru > Ford > Help! Sudden miss in 4.6 (97 T-Bird) 6 April 2005 16:55:07

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Help! Sudden miss in 4.6 (97 T-Bird)

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