Recent questions

Question
Why would my truck run better without the coolant temp sensor plugged in? 1990 Chevrolet K1500
Hello - coolant temperature sensors are variable resistor devices - the colder the coolant temperature, the greater the electrical resistance value reported to the engine computer. (The warmer the temperature, the less resistance.) An "open" condition, as in an incomplete...
Question
I need help with a computer and security module question
Swapping out control units from car to car is a thing of the past. Even if you have a controller from the same year make and model car. In most cases the controller is programmed with to work only with...
Question
P0170 and P0173, I have changed the MAF and Both sensors. Now my car does not start.
P0170 and 173 indicate that your fuel mixture is off. The ECU tries to compensate, but the error is so large that it cant make the correction. It can be caused by a Mass Air Flow sensor, but there could...
Question
My car idles poorly and loses power when I accelerate
Hi There, It sounds like you may have a dirty or failing idle air control valve causing your engine idle to fluctuate and eventually stall. The idle air control valve is a small valve on the engine's intake system that...
Question
Not Starting
This may be related to many different possibilities, some of which may be related to a lack of spark and some of which may be related to a fuel delivery problem or a combination of both. Things like ignition coils,...
Question
Turned a corner and must have accelerated too fast
It sounds like you broke a CV Joint. The CV joint is a ball and groove affair that allows the axles to transmit power to the front wheels. If it fails, it usually happens when you are in a sharp...
Question
Motor warm up takes too long
If you are in an extreme cold climate then your engine will take longer to get to operating temperature if you get on the highway right away. If you before you leave your driveway hold your engine at 2000 rpms...
Question
I just paid $600 for motor mounts. Car still doing same thing. How can I tell if the mechanic actually changed the tranny mount?
The only way to know for sure if the mounts were changed is to do a visual check of the mount. If the mounts did not change the shaking on acceleration then you may need to have a second opinion...
Question
Do I need a whole new ignition or just the ignition switch?
You will need to have the damage to the ignition lock cylinder housing checked to see if just the lock cylinder can be replaced if no damage to housing was done. You will need to have the door and trunk...
Question
My car overheated and shut down I the highway I'm replacing the head gasket but wasn't set to tdc before belt was removed and my
All you have to do is put your number one piston to top dead center with piston all the way up. Then before installing the head back on the engine put the crankshaft at top dead center aligning the timing...
Question
Will a 1998 fuel pump work on a 2001 Ford windstar
The two fuel pumps are not the same. The two pumps are different part numbers and both vehicles have different pressure specifications.
Question
I got a recall on my Sonata : http://www.autoblog.com/2016/10/20/hyundai-sonatas-flying-sunroof-recall/.
Hi there. If you have received a recall notice from the dealership or manufacture, it is probably for a safety reason. Recalls are performed by the dealership as no cost to the owner of the vehicle. If your vehicle has...
Question
Stays idling when I put it in gear, and the car doesn't move. When forced into any gear without the clutch, the car does not shut off.
Hi there. The clutch may be worn and slipping causing the engine to stay running as the shifter is put into a gear selection. If the clutch was working, when put into gear and let off the clutch pedal, the...
Question
Spark plug chaos. Rubber stoppers are preventing the spark plugs from coming out.
Hi there. Try using a pair of small needle nose pliers to pull off the rubber boots from the spark plugs. As you pull, twist the rubber boots to break them free. If you cannot get the rubber boots off,...
Question
P2002 DTC Particulate Trap Efficiency Below Threshold
Hi there. The P2002 could be solved by checking the following conditions: Driving too slow or idling the engine too long will cause this code. It takes heat in the 932 F to 1112 F range to burn off...
Question
I have changed the clutch master cylinder seals on my car but the clutch pedal still does not return.
Hi there. Check the fluid in the reservoir. Top off all fluids that are low. If the fluid was low, then look for any visible leaks. If the fluid is full and there are no leaks, then check to see...
Question
My 2002 Nissan Maxima has a noise when I start it. The sound keeps emitting while driving and it becomes louder especially when I turn left and right.
Hi there. The noise could be either the alternator making a noise as the inside bearing could be wearing out or the windings could be old and dirty making a whining sound or the noise could be the power steering...
Question
Throttle control warning light is on and I have no power.
Hi there. The code P2127 is coming on for the throttle position sensor being disconnected or not communicating with the ECM (computer). Check the throttle position sensor to see if the resistance changes when the throttle is opened and closed....
Question
Idles and stalls again.
Hello, What you are describing sounds like a dirty or failing idle air control valve. The idle air control valve monitors the air intake as it is mixed with fuel prior to being injected into the engine at low speeds...
Question
Throttle Position Sensor
Hi There, It sounds like you are describing the symptoms of a failing throttle position sensor. The throttle position sensor monitors the throttle position of the throttle plate inside the throttle body in relation to your foot position on the...
Question
Transmission is not shifting
This may be a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission...
Question
Stalling out
Hi There, It sounds like you may have one or two possible issues. This may be related to a faulty MAP sensor which is causing the engine to stall as soon as a load is put on it. The other...
Question
Car will start but not completely
Hello. If you turn the key and the engine cranks over, but does not ignite, it's possible that you have a fuel or ignition system failure, ranging from mass air flow sensor to clogged or damaged fuel injectors and throttle...
Question
My car is shaking when I am not driving but still.
Hi There, Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below...
Question
Problem is when I turn on my heat the inside of my car fogs up.
Hi There, It sounds like you may have a leak in your heater core causing the moisture to be heated up resulting in the fogging up of your windows. The [heater core]((https://www.yourmechanic.com/services/heater-is-not-working-inspection) is a small radiator like unit that circulates...