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Cobalt

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Question
car won't start
Hi There, This may be related to many different possibilities, some of which may be related to a lack of spark or possibly timing issues and some of which may be related to a fuel delivery problem or a combination...
Question
Last night I was driving home and I heard this knocking noise, a minute later the noise went away and my check engine light came on.
Hi there. The noise you heard could have been the engine knocking due to a lack of engine oil. If the brake pedal is pressed and the oil light comes on, then the oil level could be low causing the...
Question
2010 Chevy Cobalt shuts off while driving
The power relay provides power to several vital fuses. The relay is turned on and off by an on board control module. A problem with this relay or any part of its control circuit, can result in a vehicle that...
Question
cant get into reverse while car is on.
If you are having to bleed the clutch hydraulic circuit repeatedly, you should have that inspected and repaired. Obviously, there is a leak that is admitting air. Once the clutch is functioning, the gear shift issue would be evaluated, if...
Question
Gauges not working and car not shifting
Hello, and thank you for writing in. There are a few sensors that can effect both of these systems. The first one you should check is the transmission output speed sensor. You may also want to check the other speed...
Question
Headlights lo beam won't work
In all likelihood, the combination switch is at fault. There may be a broken connection inside of it. This is not an uncommon problem. Sometimes it can effect the high beams and not the low beams, or vice versa. Sometimes...
Question
Anti theft system needs reset
Follow this Pass-Lock relearn procedure. If it does not work, the ignition lock may need to be replaced if it was damaged. The Pass-Lock family has two basic relearn procedures—a ten-minute procedure and a thirty-minute procedure—and which one you use...
Question
My car been leaking gas my tank is on my passenger side but gas leaking on my driver side
Leaking gasoline is a fire/explosion hazard so be sure to have this leak repaired at your earliest convenience. In the meantime, be sure not to park in a confined space, such as a garage, because gasoline vapors could accumulate and...
Question
Keeps throwing main fuel pump circuit code.
Check the fuel pump relay and see if its getting hot. A faulty fuel pump relay will throw a fuel pump circuit code if the relay gets too hot. If there is a code for the camshaft actuator, then there...
Question
I'm having trouble replacing the cv axle. Do I need to replace the rings around the spline that goes into the transmission?
The rings you are pointing to in the video are actually the retaining rings. Unless they are broken, they really shouldn't need to be replaced. The ring on the male part of the splined shaft should pop into a groove...
Question
Knocking sound under car
Hi there. Either the tires are out of balance and causing the front end to shake and make the steering parts move around or there is a loose steering or suspension part that is moving around as the vehicle is...
Question
the oil pan drain plug head is rounded off to remove the plug are the threads clockwise or counter clouckwise?
To remove the drain plug, turn the plug counter-clockwise. You may need to use a "bolt-out" type socket to grip what remains of the head. In the event that the internal (in pan) threads are damaged and you need a...
Question
How much is a wheel bearing part for a 2008 Chevrolet Cobalt LS ; just the part, no labor?
Hi there. Although the noise you are hearing is most likely caused by a wheel bearing being damaged, it could also be due to a damaged pulley or a suspension component problem that is damaged. In regards to the cost...
Question
Can I use Lucas oil stabilizer and Lucas oil stop leak in the same oil change
The Owner''s Manual for your vehicle states on page 5-16: "Do NOT add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you need for good performance and engine protection." I...
Question
Cylinder heads
If you only need a complete, re-manufactured cylinder head, that will be more economical than replacing the entire engine. On your car, replacing the cylinder head is 1/6th the cost of replacing the entire engine. There is one caveat though...
Question
Code p0171 and no power going up hills.
P0171 is a trouble code that signifies a lean condition which means the engine is not receiving enough fuel or there may be a vacuum leak which is allowing unmetered air to enter the fuel mixture which also results in...
Question
What is it called and how much to replace?
The air conditioning compressor uses "refrigerant oil" and so if there is a leak on a fitting to the air conditioning compressor it would have to be refrigerant oil. However, it is also possible that the leak is motor oil...
Question
Loud noise from passenger side of engine.
Thank you for the link of the noise that you are hearing. The noise sounds like the timing chain is slapping the timing chain cover. Check the tensioner and make sure that it is tight. If the timing chain tensioner...
Question
Once my clutch starts to slip how long do I have before it needs to be replaced
Hi There, Unfortunately, once a clutch begins to slip, it will continue to get worse over time and will eventually get to a point where it will no longer work. The clutch transmits engine power to a gearbox, and allows...
Question
Car shifts hard and rpms rev high on there own or car doesn't shift at all, ABS and traction control lights are on also. 2005 Chevrolet Cobalt
Hi there - first task is to be sure the transmission fluid is at the proper level, and in good condition (more pink than black, and no burned smell). Low fluid, or dirty fluid, can cause lots of unexpected transmission...

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