Popular questions

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Trying to locate the Mass Air Flow sensor , and the Idle Air Control valve 2002 Ford Fiesta
Hello - Mass Air Flow meter is a short, cylindrical section of the air intake, just inside of the air filter housing, and just before a large cuved plastic-molded piece of the air intake. It has a flat electrical connector...
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I am looking to buy a 2000 lincoln LS with 186k miles on it. The only issue is that the owner told me that he gets misfire codes
The codes P0302 and P0307 are misfires on cylinders 2 and 7. I agree that you should have a tune-up on the car if you decide to purchase it. You would need to have the spark plugs replaced and the...
Question
Heater not working on 2012 ram turbo diesel 3500 when I turn truck off water leaks all over but coolant is all there
That sounds like a water pump leaking. In many cases the water pump seal can leak while the truck is parked, but not while it is running. In other cases it may leak when the engine is cold, but not...
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When I put my car in gear it doesn't move it Just idles up but wont move is it my clutch or transmission thats out? Standard shift
You want to make sure that the gear linkage is actually connected and functioning. Perhaps it is not really in gear but rather is stuck in neutral. If the linkage is functioning, the next thing to evaluate would be the...
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Crankshaftpositionsensor
A failed crankshaft position sensor can cause symptoms like this. When you crank the engine, the engine control unit looks for a signal from the crankshaft position sensor to determine where each cylinder is. When the signal is received, the...
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2007 GMC Yukon XL 2500. Intermittent problem with very rough engine and check engine light flashes. After a few minutes when engin
Defective ECMs are so rare that half of all warranty returns (industry-wide), once tested in a lab, turn out to be perfectly good. ECM updates (software) are another matter though. In the course of diagnosing something like this, it is...
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car making chirping noise on start up
Hi there. It sounds like the belt may be worn/loose and causing the noise. A quick visual inspection may reveal that the belt is indeed worn and in need of replacement. A belt tensioner that is struggling to maintain the...
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windshield wipers won't shut off
If the wipers are still functioning even after you have used the switch to command them off, that means the switch supplying power is fused shut and/or the circuit is being powered when it is not supposed to be due...
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Tachometer malfunction
Hello. There are a few reasons why this is happening. The tachometer on the instrument cluster may be bad, and the instrument cluster may need to be replaced. There also could be a problem with the speedometer shaft and its...
Question
Transmission pops into neutral
Hey there. You may have a bad shifter cable end at the transmission control lever. Look at the shift linkage arm and inspect the shift cable end to see if bushing is worn out. Also check the other end of...
Question
1988 Chevy C60 dump truck. Grinding noise from transmission while in gear
You might want to remove both PTOs first. They may be seized or have bad bearings. You may also have burned out the input bearings. The transmission will need to be removed and torn down to see what the damage...
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Should I fix my sonta that needs a transmission or should I buy a new car
In order for you to make this decision you need to compare the value of the car before and after the replacement of the transmission. If the cost to replace the transmission exceeds the value of the car then it...
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Replaced fuel pump. Car won't start. 2002 Infinity I35
Hi there - the metal component you describe is a fuel check valve on the fuel return line. Its function is to maintain a small amount of pressure in the fuel system so that starting does not require the fuel...
Question
Lots of noise out of the transmission, bad when driving
According to Nissan, this noise is normal. They want to reassure owners of a Nissan vehicle with CVT transmission that they are reliable. They've extended the warranty on the transmission to 10 years or 120,000 miles. They're also reducing CVT...
Question
1998 nissan maxima wont stay running
Hello, thank you for writing in. When dealing with this type of issue, start simple. For example, you should have the vehicle scanned for diagnostic codes. Even without a check engine light on, there may be codes present that relate...
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My car is skipping.
Hello. This can be caused by a number of things. It can be anything from a faulty sensor to a tune-up issue. I usually check the computer for codes and check all of the sensor readings with a scan tool....
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01 TDI won't start when warm.
The computer is making the beeping noise as there is an issue with the starting circuit or main power circuit. Check the start relay and the main computer relay. See if they are getting hot. A hot relay will disconnect...
Question
Engine misfiring on cylinders 2, 4, or 6
Hello. There is a possible recall for the ignition control module on your vehicle. You will need to contact a GM dealer and see if your vehicle is on the recall list for the recall [03v231000](http://www-odi.nhtsa.dot.gov/owners/SearchResults?searchType=ID&targetCategory=R&searchCriteria.nhtsa_ids=03V231000) ignition control module failure....
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Charging System Failure on van
It definitely sounds like you are experiencing a charging issue. The alternator is the component responsible for charging the battery in a vehicle. System voltage needs to be a minimum of 12 volts. Anything less than this could potentially create...
Question
Coolant seems to disappear
If this "just started", it may be that there was trapped air in the system, since you did the water pump replacement, and so all you are doing is providing make up coolant at the moment. But, if the coolant...
Question
Front wheel of truck won't move and making grinding noise
If you had your brakes removed and hub will not turn freely then it is the bearing in the hub. I would recommend replacing both front hub bearings since they both have equal amount of wear and the other side...
Question
How do you avoid the upper and lower A arm bushings from melting on a 1970 GS 455?
Hi there - yes, this is a very large engine, in a moderately-sized place, with lots of heat transfer issues! As you suggest, heat shields, or wrapping the exhaust manifold (headers?) with "heat wrap" to keep the heat inside the...
Question
What is driver side front versus passenger side front? Isn't an axle replacement the whole axle connecting the two front wheels?
Hi there. Wheel location is determined by imagining you are sitting in the driver seat. Your, and most vehicles today, have 2 axles in the front; certain vehicle still have a solid rear axle housing, but retain 2 individual axles...