
1999 Chevrolet K1500 Suburban 5.7L MIL Lamp on
HELLO and thanks in advance; this chev is driving me nuts, it has an intermittent rough idle and miss most noticeable usually at start up, code 303 along with a inefficient cat for that side of engine & will set usually after 2-3 days. fuel pressure cks good v...
FIX posted 8/10/2009
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Message Closed w/FIX
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VIN | 3GNFK16RXX |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Intermittently |
Trouble Codes
303 | miss cyl 3 |
420 | inefficeint cat |
Message Closed w/FIX
Vehicle Data
1999 Chevrolet K1500 Suburban
VIN | 3GNFK16RXX |
Engine | 5.7 L / 8 cyl / GAS |
Trans | 4-speed Automatic (Electronic) |
Delivery | FI |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp On |
Occurs | Intermittently |
Trouble Codes
303 | miss cyl 3 |
420 | inefficeint cat |