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Related questions

Question
Something is draining my battery, both battery and alternator have been checked and are working fine.
Hi. Your diagnosis is spot on! If the alternator and battery are good, something is causing a pretty significant drain on the battery, and this needs to be identified. This problem can be diagnosed by connecting an ammeter to the...
Question
Keep having to add coolant
Hello. If you keep having to add coolant to the engine then it may be possible that there is a coolant leak, or that the engine may be consuming it somehow. I would carefully inspect the engine for any signs...
Question
Locked brakes - 2004 Cadillac CTS
Hi there. From the description you have provided, your vehicle's left front and right rear caliper locking would have been a combination/proportioning valve before ABS (anti-lock brake system). The EBCM (electronic brake control module) controls the valves in the hydraulic...
Question
Brake Caliper sticking?
The excessive heat may suggest that you may have a caliper sticking or otherwise not releasing from the rotor when letting off the of the brake pedal. When this happens, as you know this creates an intense amount of heat...
Question
I got code P0016 and P0008. I just want to know what caused the problem and which one is bank 1 sensor A?
Hello, this problem (both codes apply to the same problem) relates to a calculated "bad timing correlation" between the crankshaft and the exhaust camshaft for cylinder 1 (cylinder head at front of the car). Engine management has tolerances for the...
Question
I think the fuel pump is going out. Can you diagnose this?
Hello. Yes, the fuel supply system can be evaluated by YourMechanic during a mobile visit. Typically, one is looking for supply pressures and volume of supply that are within spec. Sometimes a faulty pressure regulator or a fuel filter restriction...
Question
Check Engine Light is on and OnStar says it is code P0008
Hey there. This code is "generally" related to the timing chain and related components. This is usually due to engine mechanical problems, stretched timing chain or a failed camshaft actuator or actuator solenoid. The Engine Control Module (ECM) monitors...
Question
How can I tell if it is my water pump or thermostat that needs to be placed?
The water pump moves the coolant through the system and the thermostat regulates this flow to maintain operating temperature. If the water pump has failed, the coolant will not flow through the system so the temperature will rise quickly and...
Question
My power steering isn't working
You problem suggests that your power steering pump may be failing or you have a leak elsewhere in one of the power steering lines. Understanding how this system works is helpful to understanding the problem. The power steering pump supplies...
Question
My transmission is knocking really hard when accelerating. I can feel it right under my middle console.
This problem is most likely caused by a rapidly failing driveshaft coupling (or "guibo"). These couplings are actually rubber doughnuts, with steel couplings for attachment to the transmission and driveshaft, transmitting power to the rear differential. The rubber portion of...
Question
I can hear a rattling noise under my hood close to the outside of the motor
Hey there. I would not expect anything in or around the oil pan itself to make rattling noises that might be considered musical. Heat shields for exhaust manifolds and other metal brackets and shielding can make lots of rattling noises,...
Question
Smoke coming out of car and oil level is low
Hello. These are symptoms that you definitely don't want to hear. You are correct, don't start the engine, or drive the vehicle until you are able to get this fixed. Determine where the oil was pouring out (oil drain plug...
Question
How to remove driver side valve cover
Hey there, thanks for writing in. The reason you cannot get the valve cover off is likely due to the intake manifold needing to be removed before the valve cover will clear enough to get it off the engine. If...
Question
I have a 2003 Cadillac CTS. My engine hesitates then shuts off
Hi there: Usually when the vehicle has issues cranking over, it's not related to the serpentine belt or an ancillary drive belt. In most cases, this is a battery cranking amp issue or an ignition system issue. On the Cadillac...
Question
Code P02A9 Cylinder 4 Balance-Fuel Trim at Limit
The code definition specifically indicates the number four fuel injector is leaking. Fuel trims are used to indicate how much the PCM (powertrain control module) needs to adjust the fuel duty cycle to maintain the proper air fuel ratio. Duty...
Question
Location of neutral safety sw 03 cts
The manual shift shaft transmission switch also known as the neutral safety switch on this transmission is located inside the transmission. The switch is only serviceable by removing the transmission oil pan and internal valve body for access to the...
Question
Hard startup immediately after fill up with gas. Then starts quickly each time until next fill up.
The most common cause of hard start after fill up is going to be the excessive gas fumes during refueling the vehicle will flood the engine causing the hard or no start. The excessive fumes will normally be stored in...
Question
The left front wheel makes a metal grinding noise when turning right at a slow speed - 2009 Cadillac CTS-V
Hi there - based on the symptoms you describe, I believe your left front wheel bearing is shot. I would recommend having the wheel bearing/hub assembly replaced by a mobile, professional mechanic, such as one from YourMechanic, who will come...
Question
Why is my key stuck in the ignition?
Hello. There are a few reasons the key may be stuck in the ignition. The first step of course is to make sure the steering wheel is not locked. The easiest way to get the key to release is likely...
Question
Check Engine Light on, catalytic converter and O2 sensors need changing - $3000
Hi there: If you're Check Engine Light is coming on and somebody diagnosed this as a problem with your O2 sensors or the catalytic converter emissions system, it's highly possible that the trouble part are the front or back bank...

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