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1991 GMC C7000 Topkick C7H042 6.0L Excessive Emissions, Cuts out, MIL Lamp on
started engine runs very poor, high emissions , fouls plugs .back fires through intake .with est disconnected all problems go away, runs good at base timing .very limited on test procedures for this style of system .any clues or testing procedures would be gre...
FIX posted 1/28/2004
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Message Closed w/FIX
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10 Replies Received
10 Replies Received
Related Documents & Media | VIN | IGDJ7H1POM |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 0-speed Automatic |
| Delivery | FI / TBI |
| Emissions | FEDERAL |
| Symptoms | Excessive Emissions, Cuts Out, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 33 | map sensor |
Message Closed w/FIX
Vehicle Data
1991 GMC C7000 Topkick C7H042
| VIN | IGDJ7H1POM |
| Engine | 6.0 L / 8 cyl / GAS |
| Trans | 0-speed Automatic |
| Delivery | FI / TBI |
| Emissions | FEDERAL |
| Symptoms | Excessive Emissions, Cuts Out, MIL Lamp On |
| Occurs | Always |
Trouble Codes
| 33 | map sensor |
Video