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2007 GMC Envoy SLE 4.2L No tach
When tach works cannot give any throttle If tach doesn't work runs fine Replaced crank and cam sensor twice with AC Delco sensors
FIX posted 3/20/2019
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Message Closed w/FIX
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18 Replies Received
18 Replies Received
Related Documents & Media | VIN | 1GKDT13SX7 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | No Tach |
| Occurs | Intermittently |
| Misc. | New Engine |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0335 | Crankshaft Position Sensor 1 Circuit Malfunction (No Signal) |
| P0336 | CKP Sensor 1 Circuit Intermittent Signal |
Message Closed w/FIX
Vehicle Data
2007 GMC Envoy SLE
| VIN | 1GKDT13SX7 |
| Engine | 4.2 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | No Tach |
| Occurs | Intermittently |
| Misc. | New Engine |
Trouble Codes
| P0171 | Fuel System Too Lean (Bank 1) |
| P0335 | Crankshaft Position Sensor 1 Circuit Malfunction (No Signal) |
| P0336 | CKP Sensor 1 Circuit Intermittent Signal |
Video