Popular questions

Question
Battery light
Hello, thank you for writing in. The charging system is controlled by the PCM (powertrain control module). The module receives input information to keep the electrical system operating, if the voltage goes below 9.0 volts the light will come on...
Question
Overheating after brake modulator replacement
Hello there, there are a few things may have happened to cause your 2000 Cadillac Catera to overheat. The most common would be a radiator cap failure, air in the cooling system, or the wrong type of coolant. A qualified...
Question
Bolt underneath engine block is leaking water left side 2001 ranger
I'm not sure what "bolt" you're talking about and you don't say what engine is in your vehicle. My recommendation is to have a professional pressurize the cooling system to pinpoint the exact location of the leak. Allowing the engine...
Question
My mom's Raider feels like its driving on a bumpy road and when I get the speed around 30 to 40 it feels like it loses RPM and is
The problem sounds like your transmission is shuddering and may have major failure. You would need to check the transmission fluid to see if it has a burnt smell indicating the transmission has burned clutches inside it and would need...
Question
Replaced power steering pump and still have a hard steering.
Hi there. There is a PML valve that is on the rack and pinion steering on your vehicle. Check to see if the valve is working. The PML valve is is the speed sensitive steering valve for the steering system....
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Cylinder 1 misfire. Leads plugs and coils all changed. Is it the ECU or are there other possibilities?
Hello, thanks for writing in. If you have a misfire on that cylinder with a new plug and coil then you either have an injector issue or an internal engine problem. Most of the time the problem is internal due...
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I have 2009 Toyota Highlander, LIMITED.
Since you recently did some work on the driveshaft, I would first suspect there was a problem as a result of the installation process. Before you begin taking the wheel off for inspection, I would connect a scanner to retrieve...
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Downsizing for winter tires
Even though the rims are different sizes the two tires are very close in size for height and width and will not cause any issues using them. You do not need to have an alignment since this is for the...
Question
Idling problems and difficult startup
There are many different items that can cause the vehicle to idle poorly. The most common would be the spark plugs and wires, MAF sensor, vacuum leak, IAC valve, exhaust leak, or oxygen sensor failure. I recommend having the vehicle...
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how much to fix a blown head gasket?
If the head and block are perfectly flat (not warped), the cost will be limited to the cost of a top end gasket set, new head bolts (they are not re-usable) and roughly 6 hours of labor to remove and...
Question
Driver's side windows do not properly function
If removing the driver door window switch (or the driver-side console switch), and applying direct power to the harness yields successful operation of the window, the problem is the switch that was removed for the test. This can be confirmed...
Question
My brakes started grinding for no reason
You may have a problem with the wheel bearing that is noisy when you have weight of the vehicle on it. If the noise is a constant grinding noise, then it is most likely the bearing. If the noise is...
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overheating
It would be helpful to know what kind of car or engine you have. If I made a guess on your problem, it would be that your electric fans are not working properly and you should have a mechanic, like...
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Car not moving after shifting
Hi there. Your transmission consists of many different components. These mechanical and electrical components need to work in sync in order for your transmission to work properly. Your gear shifter may be moving, but if the solenoids internally are not...
Question
Car stalling while idling
Your concern may be from improper air/fuel metering or malfunctioning engine component position sensors (camshaft and crankshaft). The engine's computer relies on signals concerning the position of the engine's internal components for proper ignition timing. A false or absent signal...
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Transmission is not smooth at all, any service that will help?
We must start by pointing out that this 2006 Honda Odyssey has 101,000 miles on its transmission and the problem might be from internal component wear. At that mileage, no manufacturer would provide any assistance for any repairs, unless it...
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Car switched off but did not start when I tried to restart
Hello. First of all, rotating the engine counterclockwise could very well cause the engine to "jump time", and cause engine damage. The timing chain tensioner is not designed for this pressure, and can allow the timing chain to jump one...
Question
Nissan sylphy starting and dying down soon after
Hi There, Black smoke coming from the exhaust is usually an indication of a rich fuel condition. When this happens, this can be the result of many things such as faulty fuel injectors, a failing mass air flow sensor or...
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My 1997 Dodge Dakota is leaking oil from the oil filter housing
Hello. I would have to see the vehicle to know for sure but it sounds like you have a leak from the oil filter housing. Most of the time it leaks here when the o-rings wear out though it is...
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My car only drives in reverse it jerks as soon as i put it in reverse but when i put it in drive it doesnt move
You will either be real low on fluid from a leak or your transmission has major internal problems that will need to be diagnosed by a qualified transmission mechanic like one from YourMechanic.
Question
Car not starting
From your description, it sounds as though the engine is turning over, but it will not start and run. This particular year of F-150 with the 5.0 had many possible causes of a no-start. The distributor ignition module and starter...
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My boyfriend's truck dies any time he or anyone else let's off the gas. What could this be?
This may be related to a number of different things, but depending on the year, make and model of the truck it could be related to a faulty throttle position sensor or a dirty or faulty idle air control valve....