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#1
10-24-2006, 09:19 AM
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93 seville 4mpg rough idle black smoke
have 93 4.6 northstar seville sts, intermittently, idle will go rough, mpg display drops to 4, black smoke comes out exhaust and fuel gauge will start to drop. car has no codes on it, check engine light never came on. could it be injector sticking open, bad fuel pressure regulator or something else, looking for any suggestions and tips on troubleshooting this problem. thanks in advanced
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#2
10-24-2006, 08:49 PM
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Re: 93 seville 4mpg rough idle black smoke
My guess would be the FPR.
__________________
2000 Cadillac STS 2005 Cadillac Escalade 2008 Triumph Sprint ST 1050 ABS
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