97 Cobra running rough

nckissfan · 04-01-2010, 04:34 PM

hey, car idles fine, oil level is good. I let the car warm up, and went for a ride. When I got on the car hard, going from 1st to 2nd, the car bogged down really hard, and it didn't sound near as aggressive as normal. Any ideas? I was thinking plugs, but have heard maybe clogged cats.

SuperG · 04-02-2010, 07:16 AM

Check the fuel filter also...I assume there's no check engine light?

Does it bog down at 3200 rpm's? If so, you could need the IMRC's cleaned...they can get sticky.

nckissfan · 04-02-2010, 09:33 AM

I didn't get to see where the rpm level was, but that sounds around the area. I do have a cel, need to check what it is

SuperG · 04-02-2010, 12:46 PM

If you don't have a scanner, just run over to AutoZone, or the like, and they'll run the codes for you.

Then the following link will describe them:

http://www.svtperformance.com/forums...iguration.html

kng9nothing · 04-02-2010, 03:43 PM

that sounds very familiar to me. I had the same issue last summer and it was the IMRC plates sticking. A friend and I spent about 6 hours tearing it apart and cleaning them...its a bit a pain.

I also found a grommet on the valve cover leaking oil down into one spark plug.

nckissfan · 04-04-2010, 10:17 AM

it looks like I have my work cut out for me. I will see what I can get done on my own.

SuperG · 04-06-2010, 08:45 AM

Take a look at what a young feller from this forum helped put together:

http://www.svtmustangcobraclub.com/m...C_Cleaning.pdf

nckissfan · 04-06-2010, 03:39 PM

sweet, thanks for that

kng9nothing · 04-06-2010, 05:48 PM

just my .02, but when you do this, you might want to go ahead and change out your plugs and pcv valve; if needed. I'm only saying this because you're going to be under the hood any way, and it will only take another 20-30 minutes to do them while you're there.

and that article is the one that I followed...it was a huge help!

nckissfan · 04-07-2010, 08:03 AM

plugs were already on my radar

04-01-2010, 04:34 PM	#1
nckissfan Everyone hates a winner! Join Date: Jan 2004 Location: Browns Summit, NC Posts: 2,810	97 Cobra running rough hey, car idles fine, oil level is good. I let the car warm up, and went for a ride. When I got on the car hard, going from 1st to 2nd, the car bogged down really hard, and it didn't sound near as aggressive as normal. Any ideas? I was thinking plugs, but have heard maybe clogged cats. __________________

04-02-2010, 07:16 AM	#2
SuperG Registered User Join Date: Nov 2005 Location: Houston, TX Posts: 1,500	Check the fuel filter also...I assume there's no check engine light? Does it bog down at 3200 rpm's? If so, you could need the IMRC's cleaned...they can get sticky. __________________ Gary 1997 with Vortech V-2 SQ-trim 420 Hp/376 Tq at 5psi 2010 Shelby GT500 - Stock http://members.cardomain.com/supergr

04-02-2010, 09:33 AM	#3
nckissfan Everyone hates a winner! Join Date: Jan 2004 Location: Browns Summit, NC Posts: 2,810	I didn't get to see where the rpm level was, but that sounds around the area. I do have a cel, need to check what it is __________________

04-02-2010, 12:46 PM	#4
SuperG Registered User Join Date: Nov 2005 Location: Houston, TX Posts: 1,500	If you don't have a scanner, just run over to AutoZone, or the like, and they'll run the codes for you. Then the following link will describe them: http://www.svtperformance.com/forums...iguration.html __________________ Gary 1997 with Vortech V-2 SQ-trim 420 Hp/376 Tq at 5psi 2010 Shelby GT500 - Stock http://members.cardomain.com/supergr

04-02-2010, 03:43 PM	#5
kng9nothing Registered User Join Date: Jun 2008 Location: Winston Salem, NC Posts: 100	that sounds very familiar to me. I had the same issue last summer and it was the IMRC plates sticking. A friend and I spent about 6 hours tearing it apart and cleaning them...its a bit a pain. I also found a grommet on the valve cover leaking oil down into one spark plug. __________________ ~Mike 1997 Cobra #3704/6961 Rio Red w/Saddle Cloth Interior MGW Shifter Steeda quadrant & firewall adjuster

04-04-2010, 10:17 AM	#6
nckissfan Everyone hates a winner! Join Date: Jan 2004 Location: Browns Summit, NC Posts: 2,810	it looks like I have my work cut out for me. I will see what I can get done on my own. __________________

04-06-2010, 08:45 AM	#7
SuperG Registered User Join Date: Nov 2005 Location: Houston, TX Posts: 1,500	Take a look at what a young feller from this forum helped put together: http://www.svtmustangcobraclub.com/m...C_Cleaning.pdf __________________ Gary 1997 with Vortech V-2 SQ-trim 420 Hp/376 Tq at 5psi 2010 Shelby GT500 - Stock http://members.cardomain.com/supergr

04-06-2010, 03:39 PM	#8
nckissfan Everyone hates a winner! Join Date: Jan 2004 Location: Browns Summit, NC Posts: 2,810	sweet, thanks for that __________________

04-06-2010, 05:48 PM	#9
kng9nothing Registered User Join Date: Jun 2008 Location: Winston Salem, NC Posts: 100	just my .02, but when you do this, you might want to go ahead and change out your plugs and pcv valve; if needed. I'm only saying this because you're going to be under the hood any way, and it will only take another 20-30 minutes to do them while you're there. and that article is the one that I followed...it was a huge help!

04-07-2010, 08:03 AM	#10
nckissfan Everyone hates a winner! Join Date: Jan 2004 Location: Browns Summit, NC Posts: 2,810	plugs were already on my radar __________________

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