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Hard to start when cold.
jacksparrow2
Member Posts: 17
My 2008 Buick Enclave is causing some grief once again. When I try to start in when it is cold (sitting overnight) It acts as if there is too much fuel delivered. It has 160000 Kms, and I just changed the six plugs for the exact same model (AC 41-107) did the air filter at the same time too. Once the car has run, it starts ok, but is very annoying every morning, wondering f it will start up without flooding.
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A cure might be to try some of the injector cleaners following directions. I like Techron by Chevron fuel injector cleaner. They also make a fuel system cleaner. Others use different additives.
Search for leaking fuel injectors on google for youtube's and other links.
IF you have a friend with a handheld scanner that's a step above the code readers attach that in the morning to read the temperature. When the engine is cold and you read the temperature of the engine that the sensor is sending to the computer, you might find the temperature is being reported wrong. Too cold might have the computer injecting too much fuel. In my garage the engine temp is usually within 5 deg F of the garage temperature after sitting overnight.
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