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2007 Buick Lucerne Questions

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WHEN I TURN MY AC OR EVEN THE HEATS IT SEEMS MAINLY ON THE HARDEST BLOWER IT MAKES A CLICKING NOISE FOR ABOUT 12 SECONDS THAN STOPS. THIS IS EVERY TIME. WHAT CAN THE ISSUE BE? THE AIR AND HEAT WORK FINE. THANKS
All lights from the dash came while in park
At speed, (2007 Lucerne) when I go into passing gear via foot petal their is chatter from the engine compartment. Only happens then so can't check it out. What do you think? Water pump....fan.....internal engine......transmission? 88k good power well kept. Transmission fluid not changed......Water pump and coolant changed two year ago. help.
Replace water pump
This sound is non-stop with door closed & quits when it is opened. Only the driver's door is affected. The car has been shut off for over 20 hours & is still buzzing when I open any door but driver's. Please help this retired lady, Thank you!
Seems as if oil smell is coming from under the car
It gets louder the faster you go and stops when turning to the right. It sounds like when your gears don't change but that's not what it is.
does anybody know how long it takes to replace a bad injector valve for the secondary air system that puts air in the exhaust when the engine is first started, the valve is at the back off the engine (3.8) we found the problem with the test equipment the picture off an engine comes on the pump works good it leads to the valve that needs to be replaced for emissions testing and ideas?
the valve is not working right so i am getting it replaced, and wondering how long will this will take the mechanic we have the valve already so its just the time involved .
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