Popular questions

Question
Sometimes car goes into limp mode a bit of smoke from exhaust
Hi there. Sometimes, dirty or clogged fuel injectors, throttle body or EGR valve, and mass air flow sensors can cause lack of acceleration and smaller levels of smoke from exhaust. However, there are also ignition issues that could cause this...
Question
engine cranks will not fire, why?
My best guess would be the crankshaft position sensor. I have seen this part fail before without setting a code. It is located on the left side of the engine block, (front of car). It is near the exhaust manifold...
Question
Question about buying radiator for 1999 ford ranger v4 2.5l
Hi Javier. Thanks for the question today. In cases like this, you want to replace what you currently have active, as it's possible that the previous owner has removed the OEM transmission cooler, which may be the reason for the...
Question
Two misfire's and it smokes because of it. Also bogs down when giving it gas.
Hi there. Check the spark plugs and see if they have any burn marks. If the plugs are good, then check the fuel system for proper fuel pressure and see if the injectors are working. If there is a misfire,...
Question
What kind of modification/performance can I do to my car?
Hello - the best way to keep your Altima running like new is "attentive maintenance". Keep fluids (oil, transmission fluid, coolant) topped off and changed at recommended intervals. If your timing chain and associated components (tensioner, idler, chain guides, etc.)...
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why does my car hesitate when I hit the gas and also it has been tested on a computer and all of the oxygen sensors drop to zero
Hello, thank you for writing in. When the oxygen sensors read low voltages, the computer thinks the engine is running lean (less fuel than normal) and will try to compensate for it. In doing this, the computer will send the...
Question
Vehicle wont start
The fuel system pressure should be checked to see if it is within specifications to start the vehicle and open the injectors. If the pressure is too low or no pressure then check the fuel pump connector and if it...
Question
Blinkers not working when setting alarm.
Whoever put the alarm in for you did not hook up to the parking lights but the turn signal circuit. Check with whoever put it in or have a mechanic, like one from YourMechanic, come and see if they can...
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Car shuts off, will not start - 1990 Mercedes-Benz 300SE
Hello. I would check for power at the fuel pump. It sounds like you have a voltage issue. Most of the time, this occurs when the fuse blows or when the fuel pump relay goes bad. These all need to...
Question
EPC doesn't turn off
Hello. The EPC (electronic power control) can cause your vehicle to go into what most technicians call a "creep mode." What it's doing is limiting the amount of throttle that can be applied to the engine in order not cause...
Question
Transmission stuck in park
As part of the normal operation of the shifter assembly in most vehicles, pressing the brake pedal down is required. It is possible that your shift lock actuator may have failed, causing your shifter not to move from the park...
Question
The check engine light came o and the code is P0420 and I can't figure what exactly to replace
As you probably know, the catalytic converter reduces emissions by injecting oxygen into the exhaust stream, mixing oxygen with the emission gases and essentially incinerating the pollutants before they can exit the tailpipe. The converter works with two oxygen...
Question
My car starts i put it in reverse but when i put it in to drive it has trouble moving
The transmission most likely have worn out clutch bands or discs inside the transmission. The bands hold the reverse first band to give you forward gears. I would recommend having the transmission pressure tested first to see if the problem...
Question
Leak in radiator.
I would ask for help from one of the mechanics at YourMechanic. They can come to you and perform a pressure test of your cooling system and determine if there is a leak in your radiator that needs to be...
Question
Why would my wipers stop working in my 1995 Lincoln Town Car
Hello. The wipers in your car can stop working for a number of reasons. The two most common causes being the wiper motor itself or the combination switch that is used to turn them off and on. I usually start...
Question
Random stalling of a '07 Accord
The most likely problem here is the ignition switch. It's a design flaw of those. They probably should have a recall but Honda didn't recall them for some reason. Change the ignition switch - the electrical portion. They go bad...
Question
Gas reset button location
Hello. Diagnostic trouble code P1631 is an indication that the theft deterrent password is incorrect. The theft deterrent feature for your vehicle will shut off the fuel to your car until the proper password is sent to the PCM. A...
Question
Engine shake at 500-750 rpm sometimes
Hey there. The engines in these cars do shake during idle when they are new. If your car is idling lower than normal, then you may have to clean the throttle body and air bypass. The motor mounts on these...
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I have a Chevy Traverse 2009 that is reading All Wheel Drive Off and when I brake you can hear a sound similar to a helicopter. Sh
This type of problem can be diagnosed by a mobile mechanic, right at your location. If there is a tremendous amount of noise on braking, you should have the car inspected as soon as possible. Without an actual physical inspection...
Question
Car won't start lights come on no clicking changed starter ignition switch and starter relay it would start with a paper clip
Hi there. If you're able to bypass the starter with a paperclip, it's typically an indication of an ignition relay fault - not the ignition cylinder. However, this could have also created additional electrical problems in the ignition or fuel...
Question
truck shuts off while driving
The vehicle may have a bad fuel pump causing it to die. When it dies, you should check to see if it has spark and fuel. If this is the case, the fuel pump will cause a no start and...
Question
Noise in front end when turning left
Any movable suspension component could account for the noise including the strut assembly, strut mount including bearing, ball joint(s), tie rod ends, sway bar links and sway bar frame mounts, control arm bushings and possibly loose brake components. If the...
Question
I have dodge dakota 2003. I replaced the waterpump and thermastat but my truck is still overheating i have to constantly put fluid
Hi there: An engine will overheat any time the cooling system is malfunctioning (i.e., when the coolant doesn’t absorb, transport, and dissipate heat effectively). There are several individual components that comprise the cooling system on our 2003 Dodge that could...
Question
Service engine light is on
Hi There, Generally when the check engine light is on, it will register a code in the computer indicating which oxygen sensor is bad. i would suggest starting with replacing oxygen sensors first as this is much more common to...
Question
Car air conditioning blows cool but not cold air
Air conditioning is a complex and delicate system. The only way to properly diagnose a system is with a lot of specialized equipment. There are too many variables to guess. A short list for a under-performing system are: a weak...