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I30

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Anti theft problem
Rarely will pulling a fuse disable an anti-theft system. If it were that easy, thieves would figure that out quickly and more cars would be stolen. Fortunately, most factory alarms are usually fairly simple to diagnose but very difficult to...
Question
Multiple leaks
All rubber components soaked in oil and swelling must be replaced. The leaking fluid seals will require extensive work to be replaced and should be done by a qualified professional. I recommend having a certified mechanic, such as one from...
Question
My RPM needle keeps moving up and down
Hello. This may be related to a faulty idle air control valve. As you may know this is a unit that monitors the air intake into your car's engine as it is mixed with fuel. When this is not functioning...
Question
Car hesitates after stepping on gas pedal
The problem sound like you are getting an engine misfire.One or more of the engine cylinders are misfiring due to a weak ignition coil or one or more of the spark plugs or spark plug wires are failing. You did...
Question
Wheel off
Hello. When your wheel comes off as you're driving, it means that your lug nuts were loose. The lug nuts hold the wheel tightly to the hub of the car. If these nuts become loose, the wheel will detach from...
Question
Engine hesitates for 2-3 seconds before moving when accelerating from a stopped position.
The first thing that came to my mind was the Mass Airflow sensor, or MAF. This sensor is located in between the air filter box and the intake manifold. It is the primary sensor input for the amount of fuel...
Question
What would cause the battery to drain. car does not start when it's warm.
Hello. There are many things that can cause a battery to drain even when the car is off. If any live wire on the vehicle, there are many, short to ground then they can complete a circuit that will place...
Question
If the CV axle keeps coming out, what does that mean?
Hi, thanks for your question. If the axle has the retainer clip on the end of the inner joint but will not stay in the differential, then the differential may have been damaged from the accident. If you would like...
Question
Starting problems with white smoke from the tailpipe
Hi there. Typically when this engine does this, it is either because the timing chain and tensioner is failing, or it may have a more serious internal issue. The timing chain is by far the most common cause of this....
Question
High idling, jumping while idling, idle air control valve code
Hi there. This can be caused by the issues that you mentioned or a number of other things. You need to make sure all of the connectors are making good contact. I would then need to know what codes are...
Question
The car wouldn't crank, check engine light came on, bad crank position sensor
Hello. If this happened right after moving, then the computer may still need to adjust to the new elevation. The computer has an adaptive memory that must adjust to the elevation. If that is not the cause and if you...
Question
The car turns off suddenly, no check engine light
Hi there. If the vehicle is just randomly turning off like this, it is almost always caused by a bad crank position sensor on this engine. This is very common and it will not turn on the Check Engine Light...
Question
My car jerks when I'm going 50-60mph and sometimes dies right after I start it up, when I'm in park or reverse.
Hi there: On late 1990's Nissan's and Infinity models, there are sometimes issues with electrical relays that transmit electrical signals from the power source to individual components. I'm not sure if this is exactly what is going on with your...
Question
Service required light is on in dashboard
Hi there: The Service (or Service Engine) light is a warning light that is connected to the engine control unit (ECU) of a vehicle. The ECU is the brain of the car and monitors a number of systems, including mileage,...
Question
Q: My car is accelerating on its own.
Inasmuch as you are writing in about uncommanded (aka, "unintended") acceleration, I can tell you the National Highway Traffic Safety Administration, one of the Federal agencies that tracks vehicle defects, would love to hear from you. You can file an...
Question
I just replaced my maf sensor now my idle is up to 2000 rpms and bouncing up and down
Hi there. Typically when this situation occurs, it's caused by a vacuum leak. It is very common to either intentionally or accidentally remove a vacuum line while replacing a mass air flow sensor. What I would recommend is to retrace...
Question
Car feels like it want to launch more pressure on brake than usual rpm jumping up and down when in neutral or park
Hello, thank you for writing in. Unfortunately, there are a large number of components that can cause this. The vehicle needs to be scanned for diagnostic codes. Even without an engine light on, there may be code present pertaining to...
Question
I have a 2001 infiniti i30 I replaced the battery the starter and that alternator it still want crank up
Hi There, A number of things may cause the motor no to start. Depending on whether or not the vehicle will turn over will determine what the next step should be. If the engine does not turn over, I would...
Question
I'm wondering if it'll be a good idea to take out the whole ac compresser from my car?
The check engine light is supposed to come on if the controller detects a problem with the car that would effect the vehicle emissions. So it warns you of bad sensors, air leaks, misfires, overheating, and that sort of thing....
Question
Car grinds, wont start has a new battery that is now dead from sitting autozone said starter is ok and I turned the flywheel
I would recommend replace the starter first since there are issues with it and a bench test only checks to see if it turns and does not test the drive gear. Replace starter and go from there.

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