Question about Buick Cars & Trucks
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Posted on Jan 02, 2017
You will need to take the car to a dealership to have the service department unlock the radio for you. They have a special code to unlock the radio and then you are required to change the code to one that you will remember. An appointment should not be needed because this takes about 5 minutes. I do not remember the code, sorry.
Posted on May 18, 2009
SOURCE: code p0440
P0440 is a EVAP leak detected, try changing the gas cap and reseting the ECM to clear the service engine light. If you can not clear the code it takes about three start up with out any issues to clear the code and after 100 start up's the codes will clear from the ECM's history. Note use the GM OEM gas cap for a replacement, anything else is just garbage and you'll be replacing it again with in 6 months. If it's not the gas cap, need to take it to a garage and have them do a smoke test to locate the leak in the system. Good luck and hope this helps, keep me posted. be glad to help
Posted on Jun 08, 2009
it has a digatal egr valve remove the egr valve and lean it with top engine cleaner from GM, with a tooth brush, then test the stepper motor with an ohm meter if it mesures more than 6 ohms replace it.
Posted on Jun 21, 2009
If the anti-theft module does not read the right chip in the key, the engine will not crank.
That would be a problem with the chip in the key, the sensor in the lock cylinder, or the module.
If it cranks but does not start, its probably not the security system.
Posted on Sep 22, 2012
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