2004 Chevrolet Monte Carlo "large evap leak" Questions

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...EMISSION SYSTEM CONTROLS FUEL VAPORS.THERE IS A VACUUM PUMP THAT PUTS THE FUEL TANK & EVAP LINE UNDER A VACUUM.A LARGE LEAK COULD BE A NUMBER OF THINGS.FIND A MECHANIC WHO IS FAMILAR WITH THOSE ...

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Question about Chevrolet Monte Carlo

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...EVAP) system for a large leak. The control module monitors the fuel tank pressure (FTP) sensor signal to determine the EVAP system vacuum level. When the conditions for running the test are met, the ...

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Question about Chevrolet Monte Carlo

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...evap I need help please P0440 is a large leak, specifically. If its not the gas cap, the vent solenoid is usually the next on the list of likely component failures. Could be the purge valve or a ...

Question about Chevrolet Monte Carlo

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...evap large leake detected the explation is the ecm has detected a large leak in the evap system during a system monitor test . probable cause defective, loose or missing fuel cap.(have changed the ...

...evap large leak I can't figure out how to pass do i need to replace the purge valve the large leak could be a loose tank cap code p 0441 refers to evaporative emission (EVAP) system--incorrect flow ...

Question about Chevrolet Monte Carlo

2 Answers

large leak Evap System Large Leak. Replaced gas cap. Didn't fix it. Purge Solenoid is fine. Mechanic inspected and found the Evap Solenoid was sticking. Replaced that. Light came back. Took it back to

Question about Chevrolet Monte Carlo

1 Answer

...a wire connector and 2 large EVAP hoses. look for any split or crack then follow the lines back to the tank. Even a small crack is a leak. Hope helped with this. Remember rated this help. Good

...is a large leak detected in the evap system for your fuel. You need to have a smoke test done on this to locate leak Large evap leak. Usually evap vent valve is bad or rotted lines from sending

Question about Chevrolet Monte Carlo

1 Answer

large leak evap system has large leak replaced gas cap twice has anyone fixed this problem check for loose hoses. evap purge valve .. Are you fitting a non-vented cap which is what you will be needing

...refers to EVAP ---large leak detected --all those stated plus EVAP canister purge valve code p1680 refers to electric throttle control (ETC) monitor ---processor fault ===causes --wiring--ECT ...

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