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LaCrosse

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Question
Loud chatter at idle only
Hello, thanks for writing in. If the flexplate was changed within the last year, then I would usually start by isolating that area of the noise. This noise can occur if the bolts are coming loose. If they are fine...
Question
Fuel injection issue - 2005 Buick LaCrosse
Hi there. Your vehicle has a sequential fuel injection system. When the computer detects a fault, it converts to port fuel injection (bank to bank/limp mode). The most likely cause could be an electrical short in the odd bank of...
Question
Drove through high water
Hi there. From the description you have given, driving through the high water, your vehicle stall, and no crank situation may be the engine hydrostatically locked. The engine took water in through the intake, into the cylinders, preventing it from...
Question
My battery's dead and somebody is giving me a jump and it's not working
When jump starting your battery, you need to ensure that you have good metal to metal contact on both ends of the jumper cables. It could also be that your battery is toast. I recommend removing your battery and having...
Question
Is my alternator bad or my cables?
Hello. If the vehicle is only working when the charger is installed then there is high resistance in the vehicles electrical system. Most of the time it is caused by a bad positive battery cable. I usually do a voltage...
Question
Transmission problem - 2010 Buick Lacrosse CXL
The Diagnostic Trouble Code P0989 can set due to the following causes: Defective transmission fluid pressure sensor; Malfunctioning electronic pressure control solenoid; Defective electrical components, such as wires, connectors, and fuses; Insufficient transmission fluid levels; Dirty transmission fluid; Blockages within...
Question
Hot idle light keep come on
Hello. Thank you for writing in. The vehicle should not be driven when the transmission hot idle warning light is illuminated. Serious and irreversible damage can occur. At the very least, the transmission needs to be serviced. This means they...
Question
What does charging system failure mean?
It sounds like your alternator or voltage regulator may be failing causing the battery to not be charged properly. When this happens the drop in voltage will cause the charging system failure light to come on. As you know, the...
Question
I don't know whether I should keep my car that I'm financing or just get it fixed.
Hello, the vehicle’s condition can fall that way depending on its service history. Because of the many problems you are having, I recommend that a certified mechanic (such as one from YourMechanic) an come to your location and perform an...
Question
My battery went dead, replaced it with a new one and within 150 miles the Check Engine Warning Light came on.
There are a relatively large number of Technical Service Bulletins that GM has issued covering faults and difficulties with electrical components in your vehicle (ref: National Highway Traffic Safety Administration on-line database which we searched for your year, make and...
Question
torque hub assembly for 2011 buick lacrosse cxl
Hi there. The bolt torque to the backing plate on the front hubs are 45 foot pounds of torque. If you need further assistance with the backing plate installation, then seek out a professional, such as one from Your Mechanic,...
Question
i have 2006 buick lacrosse it run hot wont start back up it turns over just wont catch to start
Hi there: If you're Buick LaCrosse is experiencing overheating issues, it's possible that you have suffered severe internal engine damage or damage to ignition system components such as your crankshaft position sensor or the electrical harnesses connected to these components....
Question
2009 Buick Lacrosse is setting DTC codes P2125 and P2138.
Hi there. Try performing a snap throttle and see if the wave form changes on the Oscilloscope. If the waves do not change when performing a snap throttle, then the throttle position sensor on the pedal needs replaced. If the...
Question
hi my passager front door wont open and the outside wont open to how can i open it
Hello, thank you for writing in. The determining factor in opening the door will depend on what is obstructing it. If the handle is rendered unusable, then you will have to access the inside of the door panel while the...
Question
There is a strong knocking sound coming from the engine. Today my car won't start. Service engine light is on. It keeps turning over
Hi there. When the crankshaft position sensor is damaged or faulty, it will cause intermittent starting issues, misfiring problems, or might cause the vehicle to fail to start entirely. The best way to resolve this issue is to contact a...
Question
Car does not start
If you have power to your accessories such as the radio, heater, etc. this suggests that your terminals are providing good connection from the battery. The no starting issue may be related to a faulty starter relay. The starter relay...
Question
lights on for power steering and stabilitrack on
Hello. Thank you for writing in. The electronic power steering system can absolutely be replaced. Due to the fact the light is on the system is obviously detecting an issue, and a diagnostic scan of the vehicle can be done...
Question
A/c Heater
The lack of heat being generated by your system may indicate a clogged heater core. The [heater core]((https://www.yourmechanic.com/services/heater-is-not-working-inspection) is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then uses this...
Question
Engine won't run - 2012 Buick Lacrosse
Hi there. Having to use a breaker bar, to free the engine from being locked-up, does not sound promising. Removing the serpentine belt, would eliminate an accessory component (ie; seized alternator) that may be preventing the engine from turning over....
Question
08 Buick lacrosse leaning on the right side
Hi there. In most cases, when your vehicle leans to one side, it's caused by a bad or worn out body mount or a shock or strut that needs to be replaced. The best way to determine the source is...

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