Engine problems

lopealle · 09-09-2010, 09:19 PM

Hey gals/ guys today I was driving my mustang and all of a sudden the engine light came on and the engine sounded like itw was misfiring. i took it to autozone to get a read and i was told it was a cylinder 5 misfire. so i changed all the spar plugs and the problem still hasnt gone away. what do you guys think it could be? when i start the car and its just idling it runs fine. when i give it some gas it sounds like a subaru. i was planning on taking it to get it put on a diagnostic machine but if you guys ahve some tips that i could try that would be awesome.

deaon

MisterSkiMask · 09-09-2010, 10:18 PM

bad plug wire?

MisterSkiMask · 09-09-2010, 10:22 PM

not sure if ford in on board with individual coil packs, but that would also be something to check

lopealle · 09-10-2010, 12:21 AM

how do i know if coil packs are bad?

Artmasterx · 09-10-2010, 01:49 AM

I had a Crown Vic that did a similar thing after the intake manifold cracked and somehow let coolant near the plugs and coil packs.

If the engine has coil packs, then i would suggest simply replacing the one on cylinder 5. They are probably less than $50 at autozone and should be a relatively easy swap if it is anything like my Crown Vic was.

I am not sure if AZ would let you return a coilpack if it turns out not to help, but they might.

Silver-Bolt · 09-10-2010, 09:01 AM

Coil pack or possibly and injector. Start with the coil pack first. Should be a 7mm screw holding it in place. Remove that and then the coil pack will pop off. A-Zone can test them or swap it with another coil pack on your car and see if the miss moves to another cylinder.

lopealle · 09-10-2010, 04:39 PM

thanks guys but it was just the spark plugs. i guess the car has to take time to get use to the plugs. this morning it was running fine. i took to a local shop to get the code cleared.

atomicdoc · 09-10-2010, 09:51 PM

Glad to hear your problem solved and not many ducats at all to fix..

09-09-2010, 09:19 PM	#1
lopealle Resident Black Guy 251 Rep 2,302 Posts Drives: Lion Join Date: May 2009 Location: Federal Way, WA iTrader: (2) Garage List 2006 M5 [10.00]	Engine problems Hey gals/ guys today I was driving my mustang and all of a sudden the engine light came on and the engine sounded like itw was misfiring. i took it to autozone to get a read and i was told it was a cylinder 5 misfire. so i changed all the spar plugs and the problem still hasnt gone away. what do you guys think it could be? when i start the car and its just idling it runs fine. when i give it some gas it sounds like a subaru. i was planning on taking it to get it put on a diagnostic machine but if you guys ahve some tips that i could try that would be awesome. deaon
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09-09-2010, 10:18 PM	#2
MisterSkiMask Banned 147 Rep 2,014 Posts Drives: I Can not say Join Date: Nov 2005 Location: you must not know iTrader: (0)	bad plug wire?
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09-09-2010, 10:22 PM	#3
MisterSkiMask Banned 147 Rep 2,014 Posts Drives: I Can not say Join Date: Nov 2005 Location: you must not know iTrader: (0)	not sure if ford in on board with individual coil packs, but that would also be something to check
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09-10-2010, 12:21 AM	#4
lopealle Resident Black Guy 251 Rep 2,302 Posts Drives: Lion Join Date: May 2009 Location: Federal Way, WA iTrader: (2) Garage List 2006 M5 [10.00]	how do i know if coil packs are bad?
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09-10-2010, 01:49 AM	#5
Artmasterx Captain 46 Rep 884 Posts Drives: 2007 BMW 335i Join Date: Jun 2008 Location: MA iTrader: (0) Garage List 2006 Volvo V70R [10.00] 2007 BMW 335i [10.00]	I had a Crown Vic that did a similar thing after the intake manifold cracked and somehow let coolant near the plugs and coil packs. If the engine has coil packs, then i would suggest simply replacing the one on cylinder 5. They are probably less than $50 at autozone and should be a relatively easy swap if it is anything like my Crown Vic was. I am not sure if AZ would let you return a coilpack if it turns out not to help, but they might. __________________ Current: 2007 335i sedan Alpine White \| Sports \| Premium \| Cold \| Comfort Access FORMERLY: 128i coupe Alpine White \| Sports Package \| Black Leather
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09-10-2010, 09:01 AM	#6
Silver-Bolt Captain 27 Rep 805 Posts Drives: 2011 Z4 35is Melbourne Red Join Date: Jun 2010 Location: Portland, OR iTrader: (0) Garage List 2011 Z4 35is [9.00]	Coil pack or possibly and injector. Start with the coil pack first. Should be a 7mm screw holding it in place. Remove that and then the coil pack will pop off. A-Zone can test them or swap it with another coil pack on your car and see if the miss moves to another cylinder.
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09-10-2010, 04:39 PM	#7
lopealle Resident Black Guy 251 Rep 2,302 Posts Drives: Lion Join Date: May 2009 Location: Federal Way, WA iTrader: (2) Garage List 2006 M5 [10.00]	thanks guys but it was just the spark plugs. i guess the car has to take time to get use to the plugs. this morning it was running fine. i took to a local shop to get the code cleared.
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09-10-2010, 09:51 PM	#8
atomicdoc Private 14 Rep 79 Posts Drives: '17 M4 Vert ZCP, Join Date: May 2007 Location: DALLAS, TX iTrader: (0)	Glad to hear your problem solved and not many ducats at all to fix..
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