Popular questions

Question
Headlights work intermittently
The headlights work on a high voltage circuit including relays and fuses for over voltage protection. The vehicle may be experiencing faulted relays or the switch that powers the headlight circuit. I recommend having a technician experienced in vehicle electrical...
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2007 S80 V8 "charging system failure" - new ACM and rebuilt (by xemodex) ECM and LIN bus waveform on Blu/Brn wire scopes fine
Hi and thanks for contacting YourMechanic. To test the alternator correctly you will need to full field the alternator. Get a Vat 40 or a Ferret 40 and hook it up to the battery and put the inductive pick up...
Question
engine misfire on running temperature
This sounds like you may have potentially two unrelated problems. The first may be related to the issue of timing causing the misfiring, and the second could be related to the fan running more than usual. First, the misfiring...
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Power steering fluid leaking in a 2002 Chevrolet Monte Carlo
The power steering system uses the fluid to help you hydraulically turn the vehicle. If the fluid leaks out, from say a torn hose, it has nothing to develop hydraulic pressure with. This causes the condition you are experiencing. If...
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Gear shift cable broken
Hello, depending on how the shifter cable is broken, the cable, the linkage, or both might have to be replaced. The only way to see what has failed is to visually inspect the cable and linkage. You may have to...
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I have a 1995 Lexus LS400. Yesterday, the speedometer stopped working and the engine was sputtering.
This may be caused by a faulty transmission speed sensor. The speed sensor reads the rotational speed of the reluctor wheel, located within the transmission. The speed sensor also controls the anti-lock braking system. Driving with a bad speed sensor...
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My car won't run when warmed up - 2008 Ford Mustang GT
Hi there. It looks like you have inspected most of the common culprits of a choppy running engine. However, when the vehicle gets hot and has running issues, it's commonly caused by the EGR valve or EGR valve temperature solenoid....
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I have a vw and the rpm jumps up and down as if I'm pressing the gas padel
If the engine is not idling correct then you most likely have codes stored in the computer for the problem and would need to have the systems scanned to get the codes. You may have a problem with the throttle...
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Windshield wipers not working
There are many different reasons for your windshield wipers not functioning correctly. It sounds like you need a qualified technician, such as one from YourMechanic, to stop by and inspect your windshield wipers, A/C compressor and transmission to see what...
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AC stops working, blows warm air
Hello. Your A/C system has multiple components and sensors. It is possible that the high pressure switch is faulty. It is also possible that the blend doors for the hot and cold air are sticking and unable to open and/or...
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Radiator leaking from crack in top
This is pretty common. The metal gets very thin from cooling system wear, and the tank cannot hold the pressure any more and splits. I recommend replacing the radiator and testing the complete system for any other problems.
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I just changed my oil and everything went well until the test drive. The car started knocking and sputtering bad and smoke idk wha
Hi Andrew. Thanks for sending the question tonight. Changing the oil involves three basic steps, draining the old oil, removing the old oil filter, and installing new filter and oil. In some cases, if the oil filter is not correctly...
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Hesitation, sputtering and check engine light flickering
The problems you are having may be the electrical harness intermittently loosing contact with the engine control module (ECM). The ECM may be loosing power intermittently from the main power supply. This is not a common issue; a qualified mechanic...
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My steering wheel seems as if it is bent over to the left about an inch or inch and a half
You may have to have the whole steering column replaced including the steering wheel. The reason you will need to do this is your steering may be off quite a bit and it is probably not safe for you to...
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How do I adjust the brightness of the lighting on the instrument panel?
You may want to adjust the lighting on the instrument panel to make it less bright or to increase the brightness, depending on your personal preference. Locate the button for adjusting the brightness of the panel lighting, which is...
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Car idles and multiple trouble codes are triggered
Hi there. If this vehicle is having an idle concern, I have to ask if you may be having a stumble or stall issue when coming to a stop. If so, your vehicle may be covered under a special...
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My resr defroster is not working in my 2008 Dodge Caliber
Hello. Most of the time this is a problem with the TIPM> You would need a scan tool to see if there are any codes in the TIPM or to see if it is commanding the defroster to come on....
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Changing power steering fluid
Hello. Mitsubishi recommends that you use the Mitsubishi brand when you change the power steering fluid. However, it is possible that you could find power steering fluid at your local parts store that either meets or exceeds the Mitsubishi brand...
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Check engine light on and bogs down
Hi there. Looking at the OBD-II trouble codes you provided us and your symptoms, it appears you have a torque converter solenoid or torque converter issue that is causing the sluggish driving and check engine light. The Powertrain Control Module...
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Check charging system light is coming on 2006 Ford Taurus
Hi there - your symptoms suggest that your alternator is not keeping the electrical system properly charged. Low system voltage can affect the performance of the engine directly. Poor alternator performance could be a slipping serpentine belt, failed voltage regulator...
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Check Engine Light is on. P0430 code.
The Check Engine Light on for code P0430 is for the right (passenger side) O2 sensor indicating a bad catalyst on the passenger side or right side of the vehicle. Before replacing the catalyst, check all the engine ground connections...
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Crank no start
There are several possible reasons for a vehicle to crank and not start. A bad fuel pump, clogged fuel filter, faulty injectors, bad ecu, failed ignition coil, or a malfunctioning sensor. It will first be necessary to figure out if...
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I replaced my fuel pump on my 04 suburban but it still will not crank. Could this mean my new fuel pump is bad?
A bad fuel pump is only one of many reasons why a truck might not start. The way to test a fuel pump is to put a pressure gauge on the fuel rail and measure the fuel pressure and volume....
Question
The crankshaft sensor blows when car is put in reverse.
The problem is going to be caused by a short in the harness that goes down to the crankshaft sensor. Check to see if the motor and transmission mounts are broken allowing the engine to move too far and hitting...
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My car starts, runs, and goes into gear but it won't move.
Hi there. Check the torque converter bolts and make sure that they are installed into the flex plate. The sound is the torque converter hitting the sides of the bell housing. It also could be the flex plate being broke...