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Terraza

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Question
Speed control broken. 2005 Buick Terraza
You may be having a problem with the throttle control actuator assembly not getting a signal from the ECM, or the actuator module is defective. The cruise control test with the dealer scanner can monitor all the inputs and outputs...
Question
ABS T/C error light
Hey there, thanks for writing in about your 2006 Buick Terraza. There is a possibility of the connector C305 under the drivers seat on the rear getting corrosion and damage from water getting on the connector. The connector is not...
Question
Rear power sliding door, 2005 Buick Terraza
The close operation for the door is dependent on the door not being blocked in some way or binding that will cause the motor to reverse. This is a safety feature. The first thing to do is open the door...
Question
Water leak under dashboard
If your vehicle is equipped with a sun roof, then you may have a water leak due to the drains for the roof on both sides being blocked with dirt and debris. You may also have a blocked A/C drain...
Question
EGR P0404 code accelerating. 2005 Buick Terraza
For this code, there is a related technical service bulletin 06-06-04-003D dated March 20,2007. The TSB calls for installing a new EGR kit consisting of a new valve, tube, and wire connector, and directions to reprogram the powertrain control module....
Question
How much should it be to fix a drive belt tension and pulley has oil on it
You would first need to find out the reason for the oil leaking on the belt. You may have a power steering leak, an oil seal leak, or a water pump problem. Once the leak is found then a proper...
Question
Reduced engine power
Hello there, many common problems will cause your 2009 Buick Terraza to have a loss of engine power. The most common would be spark plugs, fuel pump, coil, fuel injectors, MAF sensor, vacuum leak, oxygen sensors, or a wiring harness...
Question
Overheating issues
Hi there: It's is common to see the temperature gauge rise slightly when you come to a stop; especially if the thermostat has not fully opened due to the lower temperature. However, if it rises into the "red" of your...

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