Popular questions

Question
Multiple misfire codes and hard shifting
Hello. I would start by doing a compression test. From the codes you are getting to the way that is is running and the sound that you hear it sounds like you have a failed valve seat. When this occurs...
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Kia Rio infrequently and at different temps/speeds, sputters and has engine hesitation; Several parts already replaced but still has problem
In order to diagnose this problem, a mechanic would need to duplicate the problem happening. The most common problem would be the fuel pump is losing pressure, or one of the sensors (like the throttle position sensor) is intermittently causing...
Question
Heater not working
Your vehicle has a control valve in the heater hoses the either blocks or allows the hot coolant to flow into the heating system. This control valve is operated by engine vacuum via several solenoids that are controlled by the...
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Engine is misfiring on my car
A faulty mass air sensor can cause rough running due to the injection mapping being improperly set. Unplugging the sensor can, in some cases, cause the rough running to clear up as a fault is set and the engine computer...
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Advice on how to keep cars that aren't used very often from rotting
Yes, it depends on how long the car is going to be sitting. Your tires could possibly go bad. A lot of weight is sitting on the tires. It's a good idea to once in a while jack up the...
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Car won't start.
The problem will need to be checked to see if you are loosing ignition or fuel to your engine, since the most common problems are the fuel pump, engine module and distributor going bad on these engines.
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I've replaced everything from tie rods, upper and lower ball joints, the whole cv axle including cv joints and boots, and I'm stil
Hello, thank you for writing in. The noise you are hearing may be a result of a wheel bearing or a shock issue. There are several tests that can be done while the vehicle is parked, and some while it...
Question
Over heating
If you have really found evidence of cooling system blockage(s), then your continued overheating could simply be due to the fact that not all blockages are yet removed. Also, you could have multiple faults, that is blockages plus perhaps a...
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Mystery shaking
Hi, thanks for writing in. Given the sporadic nature of the symptoms, and a known head gasket issue, it is likely the engine is misfiring due to the head gasket issues is causing rough running. If the symptoms are felt...
Question
Car leaking antifreeze and overheating
If the vehicle isn't overheating you probably just have a coolant leak somewhere. If left unattended however, your vehicle could run out of coolant and subsequently overheat. Overheating can lead to extensive engine damage, so I recommend addressing this issue...
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Engine oil leak
Hello! There are several seals that are likely leaking on a vehicle of that particular age, such as the valve cover gasket, tube seals, distributor seal, crank seal, or camshaft seal. The leaking of one seal will commonly drain down...
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What would cause my vehicle to misfire in all 4 cylinders and throw two codes for air/fuel ratio heater circuit malfunctions?
One of the codes (P0115) refers to the coolant temperature switch circuit. If the circuit has a fault, you may be getting a false indication of the actual, and perhaps too high, engine operating temperature. The cooling system is pressurized...
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Engine & turbo stutter at 60mph
If you are having an issue with the engine sputtering at highway speeds, it may be related to your fuel system. I would recommend having your fuel system checked by a qualified professional due to the fact that gasoline is...
Question
How do I use the sunshade?
The sunshade covers the moon roof, to keep excess light and glare from entering your vehicle. When you open the moon roof, the sunshade will automatically open as well. However, at any point you can manually open or close the...
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Calipher stuck
Hello. If the caliper will not release from the rotor then the brake line should be cracked open first to see if there is pressure int he hydraulic system that is keeping it locked up. If not then the caliper...
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My brakes go all the way down and are hard to stop
If the hydraulic system was opened, for example, if rebuilt calipers were installed, then yes it could very well be that the entire four wheel system needs to be carefully bled, preferably using a pressure bleeder, and also being mindful...
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When the car is running it doesn't want to shift gears. But when it's off it will shift gears 2004 Hyundai Accent
Hi - check your clutch hydraulic fluid level. The clutch reservoir may be one and the same as for the brake system - they both use brake fluid. I believe that most likely your clutch slave cylinder has failed and...
Question
Load on truck's engine causes loud knocking noise
Hello. It sounds like there may be a problem with the piston or the valves in cylinder 5. Loose rod bearings to the piston can cause a knocking noise and/or a misfire condition. A worn out piston can also cause...
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Stalling dying misfires
These issues may be related. The battery is basically just an electronic storage device which must be charged regularly by the alternator. A good battery that doesn't stay charged points to a failing alternator. A bad alternator can also cause...
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Car shaking when I turn right
There is most likely a ball joint that has excessive movement and is failing. Ball joints allow your front wheels to turn back and forth. When they get excessive play in the joint, it can cause all kinds of clunks...
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Car will not go into reverse.
Being unable to reverse your car can be an alarming concern. There appears to be a few reasons as to why the reverse gear is making noise and not working in your vehicle. If your car is equipped with 4...
Question
Improving MPG on a '93 Chevy G30
This car is known to be a gas hog. You've got a big block Chevy V8 and it's an old one, so it has a basic, really old-fashioned fuel injection system that doesn't work all that well. There's really nothing...
Question
What do you recommend for transmission fluid and engine oil for a 2010 Lincoln Town Car?
Hello. Ford or Motorcraft brand would be the OEM fluid brand that your vehicle came equipped with from the factory. However, any brand of oil and transmission fluid will work fine as long as it meets the API certification rating,...
Question
the car is loud when I test drived it. When I accelerate it almost choked but overall runs fine, may just be muffler?
Hello. It could be possible that the symptoms the vehicle is showing are due to an exhaust leak. An exhaust leak will usually cause increased exhaust noise, and if large enough or if the engine load is heavy enough, can...