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11-05-2003, 09:37 PM
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#1 |
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Registered User
Join Date: May 2003
Location: st. louis
Posts: 11
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97 cobra is dying "HELP"
First of all my mods are o/r h-pipe, w/ flowmaster 1 chambers, steeda pulleys & T/A set a 16, and 4:10 gears with 102,600 on the odometer. Here's the story I was driving home from work and my car all of a sudden start to make a puttering (back pressure) noise and didn't want to accelerate when I give it some gas. I pulled over and popped the hood, everything looked good but it had a really bad idle and then it shut off. I started it back, drove it around some more and it still mad the noise and wouldn't accel. Does anyone have any ideas on what could be going on with my car?
thanks |
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11-05-2003, 10:20 PM
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#2 |
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Registered User
Join Date: Oct 2001
Location: Geneva, Switzerland
Posts: 1,727
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I noticed on the older 5.0's, a bad plug wire would cause a "back pressure" type feel. Since you've got an off road H-pipe, clogged cat isn't the problem. Just give everything a look over, pull the plugs, visually inspect the plug wires, etc.
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Josh 2003 Oxford White Cobra Coupe Twin Turbo Solid Axle Automatic Return Fuel System 1997 Triple Black Cobra Convertible Forged and Blown. 511rwhp 398 rwtq *Sold* |
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11-06-2003, 02:33 PM
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#3 |
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Moderator
Join Date: Jun 2001
Location: Lexington, SC
Posts: 878
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Change your fuel filter if you haven't....with that many miles it's probably clogged.
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Tom Crews 1997 Cobra Coupe #3672, SCMC #82 571 rwHP 462 rwTQ ------- 1998 Cobra Convertible 264 rwHP 268 rwTQ Tom's SVT Cobra Page |
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11-07-2003, 12:22 AM
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#4 |
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Registered User
Join Date: May 2003
Location: st. louis
Posts: 11
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Now what ???
First off, I changed the fuel filter and it still would spudder really bad, so I had went ahead and changed the sparks plugs and it didn't spudder when I would get on it but if I was cruising down the street in the lowest gear (4th or 5th) and press on the accell. it would still do it. The car would spudder so bad it would shake. I checked the check engine light and it said something "4 missfired", throttle body sensor, and no cats. I couldn't get the high priced spark plugs because autozone was out so I had to settle with champion which total where $12.99. You guys woulnd't think I have a ****ed up pistons or bad fuel injectors???
Please let me know thanks |
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11-07-2003, 07:23 AM
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#5 |
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Registered User
Join Date: Sep 2002
Location: Harriman, TN
Posts: 823
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Keep checking the simple things first.
Spark plug wires check resistance O2 sensors and Mil eliminators Clean the MAF |
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11-07-2003, 08:41 AM
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#6 |
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Registered User
Join Date: Sep 2003
Location: Miami,FL
Posts: 19
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i had really bad spuddering and it ended up being wires and coil packs...
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11-07-2003, 11:04 AM
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#7 |
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"Love that Boost"
Join Date: Aug 2001
Location: Asheville,N.C.
Posts: 771
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Mine started that and it was the EGR.... is that the correct spelling....well it was something like that. It felt like I lost a cylinder.
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 http://brmcoa.org/ 1997 Cobra #3843 Born 3/18/97 2-chamber Flowmasters cat-back Vortech S/C V2 MSD DIS4 Autometer Phantom Fuel Pressure & Boost Gauge FMS 4:10 ring & pinion Kenny Brown Subs MM Caster/Camber Plates Eibach Pro Kit Pro 5.0 shifter 401 RWHP & 396 TORQUE |
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11-08-2003, 03:00 PM
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#8 |
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Registered User
Join Date: Oct 2001
Location: Geneva, Switzerland
Posts: 1,727
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The copper spark plugs will out perform the platinum plugs. Platinum is for longetivity, but not much else. The champion plugs are a better plug for performance, but you'll need to check them @5000 miles, and replace them every 10,000 miles.
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Josh 2003 Oxford White Cobra Coupe Twin Turbo Solid Axle Automatic Return Fuel System 1997 Triple Black Cobra Convertible Forged and Blown. 511rwhp 398 rwtq *Sold* |
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