Popular questions

Question
I have a 1999 chevy Tahoe that only blow air from the defrost vents. How can I get the air to blow in your face of feet?
The control actuator that moves the door to control this may have a wiring connector issue due to connections at control head and actuator wiring was miss routed and it pulls the harness connector wires too taught. You should disconnect...
Question
Battery with white buildup
Yes, you'll need to clean the connections off because it will eventually start to corrode the metal. In order to do this, take your battery terminals off, clean it really well with a wire brush that you can get at...
Question
car makes light squeaking noice when driving on freeway between 55-65 miles an hour.
Hi there. Typically when a vehicle squeaks, it's due to a worn out or improperly lubricated component. Most of the time when this noise happens on a freeway or during highway driving when you hit a "bump" or change lanes,...
Question
My headlights are not working correctly - 1996 Chevrolet Blazer
Hi there. Most of the time this is caused by a bad headlamp switch. When the switch fails, it will cause this to occur. If the switch is fine, then it may have an issue with the headlamp relay. I...
Question
My electrics are all going crazy
There are numerous Technical Service Bulletins (TSB #PIT-4730A, #TB-080849017B, #4011, #07224) that address this issue and probably a few that you haven’t seen yet. These issues have multiple causes, from defective wiring, shorted fuse panels and in some cases defective...
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Secondary air injection
Hi There, As you may know, the purpose of the secondary air injection system is to inject more air into the exhaust system at cold start to help light the catalyst material inside the catalytic converter quicker. The reason for...
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Car won't start after changing water pump
It sounds like something was left disconnected during the repair. Without more information like whether it turns over or not, or if any lights on the dash are on, etc., I will not be able to give you a precise...
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2012 dodge charger and the service power steering and we cant figure out what's wrong
Hi there. Most of the time when the power steering light is illuminated on the dashboard, it is due to either a fault was found by a sensor or a sensor malfunction. The newer electric power steering systems tend to...
Question
Had p0715 code replaced input speed sensor cut engine light off but in 2 mile it still threw code p0715 again
Hi. There could be a problem internally were the speed sensor is reading making it still throw the code. There also could be a problem with the wiring harness or connector going to the speed sensors. The wiring could have...
Question
Engine dies for a second when traction control light comes on
Hi There, The traction control system monitors the steering stability of the vehicle and engages when loss of traction has been detected. This is done by the use of electronic sensors at each of the four wheels that communicate with...
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Vibration when accelerating from low speeds, MPG is reduced
If your car is misfiring, the Check Engine light should be on. Unless it is not working.There are some other possibilities which would not turn on the check engine light, but without driving the car it's very hard for me...
Question
Hoses connected to throttle body
Any hoses that would connect to a throttle body are either going to be for coolant or vacuum. In order to determine where the hoses go from the throttle body, I would recommend following them with a flashlight and or...
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Serpentine belt keeps coming off
The pulleys will not just lose their alignment. For this to happen, there has been a failure somewhere. One of the most common causes I have found for this problem, on a serpentine belt system, is that the belt tensioner...
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My car is idling rough and flooding out when first starting. What could be causing this?
This may be related to a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...
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Error codes P0131 and P0151
Hi there: It would be best for you to review these two links; the first describes what the P0151 OBD-II Trouble Code is and what typically causes it, and second, the P0131 code and what it means.
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What should I do if my electronic key doesn’t work with the car?
Your car’s smart key system allows you to lock and unlock the doors, and even crank the engine without having to use a physical key or even press a button on the remote. However, there may be times when the...
Question
When i start car in the morning, it vibrates with a rattling noise under
Hey there. This sounds like you may have a rough idling problem that tends to get worse once the car is put into gear. This can happen for a variety of reasons such as low fuel pressure, faulty fuel injectors...
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When your power steering line that runs to the rack is stuck and will not turn with a wrench at all how do you remove ? 2004 Kia R
I would recommend first removing the power steering pump. Then pull the power steering pump away from the engine as far as the connected power steering line will allow. Then I would use a torch on the flare nut of...
Question
Acceleration high-pitched whistling
This generation of Toyota Previas has a known issue with this that is typically related to something called a "flex pipe" which is a part of the exhaust system that sits in front of the catalytic converter. The fact that...
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Dealership says water pump needs replacing
With regard to the dealership, or any mechanic for that matter, simply ask for the evidence substantiating the diagnosis and proposed repair. In the case of an alternator, once the drive belt is removed from the engine, and the engine...
Question
What does it mean if the Low Oil Pressure light on the dash is blinking?
Your dash holds a number of very important lights. The Low Oil Pressure indicator is one of the most essential. If this light comes on and flashes, it means there’s something very wrong and you need to take immediate action....
Question
Key stuck in ignition of 2001 Mercedes-Benz ML320
Hello. Most of the time, this is caused by a bad battery in the car. If the battery is low then this will occur. I typically start by checking the battery and doing a load test. If the battery is...
Question
When I rev my engine it chokes starting around 4k rpm when I drive the car the problem doesnt happen. only when reved
It sounds like you may have a fuel supply problem in getting the proper amount of fuel to the fuel injectors. As you know, when you turn the key to on, the fuel pump is activated and the fuel system...
Question
I had a p0405 get code replaced egr valve, map sensor,mad sensor, and PCv valve just to be safe but still getting the code why?
The code P0405 and a rough idle is most likely due to carbon getting into the EGR pintle. This will hold the EGR open. When you are getting the rough idle you should shut off engine and remove EGR valve....