Popular questions

Question
Truck makes loud noise when accelerating
Hello. There are multiple things that may cause loud noises when stepping on the gas pedal such as axles,valve lifters, and catalytic convertors. I suggest having a technician inspect the vehicle as again there are several things that may cause...
Question
Car shutoff completely at 100 mph
Hello there. A few items may be causing the high speed shut off. The most common would be a fuel pump, fuel filter, low fuel pressure, or the rev limiter. This kind of issue can cause the vehicle to become...
Question
How do you control the Speed Control system?
While the Speed/Cruise control on your car offers a lot of convenience, it’s important that you understand how to control various aspects, and what your input might result in, in terms of vehicle performance. Here’s what you should know: ...
Question
Rattling from AC when idling
The rattling may be from the AC compressor pulley or tensioner for the belt. The tensioner is the most common problem, but the spring may be too weak causing vibrations and rattles. I recommend seeking a mechanic, such as one...
Question
Using conventional 80W90 gear oil instead of FS 75W90 can be a problem ?
The gear oil you put in the transmission will not cause the transmission to slip or cause loss of power due to clutch slippage. You should only use the recommended oils in the transmission or it may damage bearings and...
Question
Is there water in my gas tank?
If the car was sitting for a long time, there could be water in the fuel tank. You can use any fuel water treatment solution to remove any water from the fuel. If the fuel system was treated, then check...
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What would cause a popping noise and shaking when turning in my 2006 Honda Civic.
Hello. Most of the time if you get a popping noise when turning it is because you have worn out cv axles. When the joints in the axles where out this noise will occur. They would need to be inspected....
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Skipping engine, rough idle, shuts off during slow down & idle, overheating, white smoke from exhaust
Hi There, It sounds like you may have a couple of separate issues going on here. Overheating can be caused by a number of things such as low coolant levels, a faulty thermostat, a clogged radiator or a failing coolant...
Question
Battery light and air bag light comes on and off
This may be a voltage regulator issue. The voltage regulator is a unit that regulates the charging of the battery by the alternator. When the voltage regulator is not working properly, this may result in the alternator allowing too much...
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My car shuts down while driving - 2006 Kia Rio
Hi there. Assuming this is not a misfire you are feeling and the computer has not recognized a misfire, this would lead me to believe a there is an electrical fault. Possibly a faulty ECM (engine control module) relay or...
Question
Clutch lost all hydraulic pressure after difficulty engaging gears while using the clutch.
Hello. This situation is usually a failure of either the clutch master or slave cylinder - they simply wear out. If you have any clutch fluid on the drivers side front carpet, the failure is the clutch master cylinder. If...
Question
Turbo blow off valve
Hello. The "blow-off-valve" or BOV, is a pressure-release valve designed to prevent over-pressurization of the engine, not the turbocharger itself. While hearing some of the sounds a turbo-charged engine makes while running through the gears is a most pleasant experience,...
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Car shakes and stalls at a stop or sometime in reverse. No check engine light, no codes. Replaced spark plugs.
It wasn't a bad idea to change the sparkplugs, but at 88'000 miles I doubt that had much to do with the problem. You need to check carefully for air leaks. Any air that gets into the engine without passing...
Question
My 08 scion xb vibrates at 55 mph
You did not specify the transmission you have but the problem sounds like an issue with the constant velocity inner joint. When these joints start to have problems with vibration they are known to exhibit problems under a load and...
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Engine noise at idling, Check Engine Light on
Hello. It is common for these cars to have problems with the camshaft gears making noise and causing the Engine Light to come on. If the problem persists, then damage to the motor is possible. It would be a good...
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White smoke under hood on the passenger side when idle 2003 infiniti g35 coupe
Hi There, The white smoke may be a couple of different possibilities, depending on the kind of white smoke. If this is more of a steamy white smoke, this may indicate an overheating problem which may be causing the coolant...
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i have a 2011 chevy traverse lt, and i accidently hit the positive battery terminal with ground, now won't start
Hello. If you crossed the cables as you mentioned then it may have caused some serious damage to the vehicle. I would start by checking all of the fuses. Hopefully it jhust blew one of the main fuses and that...
Question
Check Engine light on - camshaft
Hello. The camshaft is a sensor that reads the revolutions of the camshaft. When the sensor malfunctions it is not reading the camshaft revolutions, causing the car computer to think it’s out of timing. This usually causes the car to...
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Rear end noise, weak acceleration
Hello. A better description of what it sounds like would help me to determine what you need. If you are getting a grinding, growling, or popping noise, then it is more than likely a failing rear differential. These commonly fail...
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Car stalls and P0401 insufficient egr flow
The P0401 code is for low EGR flow, but would not be the cause of the stalling if the flow was too low. You also state the problem is when the engine is cold and goes away after it is...
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My rear piston will not compress on my 2014 Ford Focus titanium
The rear calipers does not just screw in but requires to be pressed in at the same time it is being turned. If it still does not go in then you need to replace the caliper.
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After replacing the power steering pump there was a low idle, idle screw is all out, running rich, and idle speed doesn't change.
Hi there. The engine has a vacuum leak and is causing the engine to stumble down on the idle. Check all of the vacuum hoses and the brake booster for any leaks. The engine is rich for it's not burning...
Question
1993 Ford F150 4.9 straight 6 fuel pump keeps running, won't start, replaced relay and fuel pressure regulator, still having the same problem
Hi, thanks for writing in. You need to have the fuel pressure checked to see if the pressure is low. The fuel pump inlet screen may be getting clogged causing the pressure to drop off but the pump will continue...
Question
My truck is giving codes P0171 & P0174
Hi there. If the engine is running lean, then there could be a plugged fuel filter or a faulty fuel pump with loss of pressure. If the pressure is dropping after 20 to 25 minutes, then there could be a...
Question
Can bad coils fry that computer the PCM
OBD-II PCMs have circuit protection to take account of the possibility of shorted actuators (fuel injectors, coil drivers) and other electrical overloads. Statistically, the PCM is probably the most reliable component on the entire vehicle. If the cause of the...