Engine knocking and code p1260

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Engine knocking and code p1260

Discussing Engine knocking and code p1260 in the V6 Mustangs Forum. So my new car (94,xxx miles) has what sounds to be a pretty severe ...

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October 6th, 2008, 09:50 AM	#1
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	Engine knocking and code p1260 So my new car (94,xxx miles) has what sounds to be a pretty severe engine knock. -It starts as soon as the car is started -It sounds kinda like metal clanking metal, and at about 55mph from inside the car it sounds like a machine gun. -It normally seems to go away when the clutch is pushed in, but some times it just gets fainter -It does get faster/louder as the rpms increase -Sometimes if i let of the gas it goes away, but not always The only code it is throwing is p1260 (theft detected), but i just realized i used a strattec key and not the Ford key so im assuming that was what caused the code. The knocking was present before the code so i think they are unrelated anyways __________________ My car ---- (m112 in progress)

October 6th, 2008, 10:42 AM	#2
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	I pulled all the plugs, they were bosch platinum fusions, and they all looked fine, maybe just a little white on the drivers side. __________________ My car ---- (m112 in progress)

October 6th, 2008, 11:02 AM	#3
itschristorres8 SP00LIN V6 2000 Mustang V6 unknown @390 Join Date: Aug 2006 Location: south florida Posts: 14,619	first of all those are the worst plugs you could probably use. when did the knocking sound occur? how long has this car been running since you tore it down __________________ 437rwhp and 402rwtq through a V6 on a stock bottom end

October 6th, 2008, 11:34 AM	#4
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	yea, they were the plugs that came in the car, i just picked the car up today. i pulled those plugs and have some old autolite platinums to use. I dont know how long the engine has been knocking, the previos owner told me nothing. how long has this car been running since you tore it down? not really sure what your asking here, i picked up the car at about 6 am, drove it straight to my house, and then pulled the plugs and checked compression, that is all. Compression is.... Cylinder 3- 175 Cylinder 6- 140 Cylinder 2- 165 Cylinder 5- 165 Cylinder 1- 140 Cylinder 4- 165 as far as engine modifactions that i know of its just an ebay looking cai, shorty headers, plug wires appear to be aftermarket ( they are completely plain no words anywhere), red top optima battery. The tb is very dirty/oily behind the blade. Im thinking possibly a rod bearing or two? __________________ My car ---- (m112 in progress) Last edited by 99v6stang : October 6th, 2008 at 11:37 AM.

October 6th, 2008, 12:04 PM	#5
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	And not that this sounds at all like an exhaust leak, but i decided to check if the headers were tight, and they were but on the passanger side something shot sparks on the third bolt back, guess i should have disconnected the battery. I'm wondering if there is anything i can do for this engine, or if its shot. __________________ My car ---- (m112 in progress)

October 6th, 2008, 02:12 PM	#6
stephen Enthusiast Join Date: Feb 2007 Posts: 602	This looks like a good used engine eBay Motors: Ford 99-04 Mustang V6 3.8 Engine Complete Motor 37K MI! (item 280273016197 end time Oct-30-08 21:11:26 PDT)

October 6th, 2008, 02:13 PM	#7
stephen Enthusiast Join Date: Feb 2007 Posts: 602	So are you saying you put a used engine in your car and there is rod noise right away? You should be able to get your money back for that engine.

October 6th, 2008, 03:21 PM	#8
itschristorres8 SP00LIN V6 2000 Mustang V6 unknown @390 Join Date: Aug 2006 Location: south florida Posts: 14,619	so your high is 175 and low is 140 thats more then 10% difference do you know of any tune that might be on the car i forgot you got another sixer, im assuming your talking about that one. __________________ 437rwhp and 402rwtq through a V6 on a stock bottom end

October 6th, 2008, 07:49 PM	#9
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	Yea, this is my new car. Not a used engine i just dropped in, the stock one that came in this car. I already have a different engine to drop in but was hoping to get this one working to put in my old stang __________________ My car ---- (m112 in progress)

October 6th, 2008, 07:54 PM	#10
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	I dont know of any tune no, i know very little about this car, but just found out today it has bilstein shocks and struts, yay __________________ My car ---- (m112 in progress)

October 7th, 2008, 10:17 AM	#11
stephen Enthusiast Join Date: Feb 2007 Posts: 602	As to the engine in the car, from what you say it has rod bearing problems. Most likely it will need a new crankshaft. The good news is that a new one from Ford is ~$250. So with a new crankshaft and bearings you could fix it. It would be cheaper to go with the used engine I showed you and keep this one for parts.

October 7th, 2008, 11:55 AM	#12
99v6stang Enthusiast Join Date: Dec 2006 Posts: 758	ya i just pulled the motor out last night and am droppi my old one in this car __________________ My car ---- (m112 in progress)

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