Question about 1996 Chevrolet Blazer
This is an evap small leak code and is most likely caused by the gas cap. The computer and evap pressure sensor determines if the evap system has any leakage and that is why the code is setting. Most Blazers have a plastic strap that is attached to the cap, make sure that the strap is not getting caught under the cap and preventing a good seal. The rubber seal on the cap may also be damaged so check that too. Also when you get gas, over the years the inside of the filler tube gets knocked by the nozzle and that damage could prevent good sealing as well. Other issues with this code could be in the evap system components such as the evap canister, related solenoids, and hoses. This would have to be checked at a shop for you. The first place to check is the gas cap itself and even replace it you suspect it since they are not expensive and you can do this yourself. As stated by one of the other posts, you can leave the battery disconnected to reset the code, but only do this after you fix the problem or as a temp. solution since the code will only return shortly.
Posted on Dec 20, 2008
check your gas cap and if it doesnt look like there is a problem with it then you need to take it to someone with an evap leak detector(smoke machine) and clamp off the evap vent hose and look for the smoke. your looking for a vapor leak it could be anything in the fuel system.
Posted on Mar 15, 2009
If it has been serviced correctly just take it aback and ask them to reset the warnibg light. If they can't then you should chose another garage to service it.
Posted on Nov 03, 2009
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5.Connect the new EVAP vent solenoid harness (3), P/N 22687059, to the EVAP vent solenoid (2), route the harness above the rear ABS harness (4) and connect the EVAP vent solenoid harness (3) to connector C313 (1).
6.Lower the vehicle.
7.Clear the DTC's with the Tech 2 scan tool.
If all of the wires are good you will want to check for any leaks in the evap system.
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