Popular questions

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Throttle suddenly goes out
Hi there, thank you for asking about your 2003 Mercedes-Benz S55 AMG. This is usually caused by a failing throttle body. The throttle motor or sensor fails and will cause this to occur. If the motor cannot move the throttle...
Question
O2 Sensors
As you may know the oxygen sensors, which are part of your emissions system, read exhaust gases to determine whether or not the appropriate amount of oxygen is present in the exhaust. Based upon this reading, this information is relayed...
Question
After replacing the starter, itwon't engage and there is a whining sound.
This suggests that the starter may not be aligned properly. When the key is turned and the starter engages, the small gear on the end of the starter comes out slightly to engage the flywheel to turn the motor over....
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I have a loss of power and I can't really press on the gas too hard or the engine will start shaking/stalling
The engine may have a vacuum leak in the throttle intake tube between the mass air flow sensor and the throttle body. Or the mass air flow sensor may not be working correctly or is contaminated. Have the computer scanned...
Question
Loss of power, rough idle, and engine misfires.
Hi there. There are several electrical and ignition components on a 2007 Mini Cooper that could cause the symptoms you're describing. The ignition coil would be the first item I'd inspect, but before I touched any part, I'd complete a...
Question
1984 ranger revving high before shifting into gear. Automatic Transmission
This may be a sign of a faulty MAP sensor as the vehicle responds adversely to a load put on the motor (i.e. putting it in gear, making turns (which makes use of the power steering pressure switch) turning on...
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Immobilizer ring was damaged. Can I bypass the device?
Hi there. If the vehicle has a security system, you will need to replace it with the manufacture security system (providing the thief had destroyed the OEM part). If the thief had destroyed an aftermarket security system, then you can...
Question
inner tie rod torque spec on a 2006 nissan maxima ?
The inner tie rod nut should be torqued to 90 to 100 foot pounds and secured with lock.
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When start Mazda Protege, there is a squeak in the engine area
The noise is coming from the serpentine belt. The belt is most likely loose or glazed over from needing to be replaced. Check the belts for tightness by twisting it between your finger and thumb and it will be hard...
Question
what do codes P1391 and P0340 mean?
The codes mean you need a camshaft position sensor (or something related to it such as wiring). Typically you replace the camshaft and crankshaft position sensor as a pair. The jerking/misfire sounds like you need a tune-up at 112k miles....
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VEHICLE ISSUES
German luxury cars built in this century are very complicated. They have multiple electronic control units for different functions, one for the engine, one for the transmission, one for the brakes and half a dozen more for various body functions....
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Wheel bearing replacement
The front wheel bearings would need to be replaced with the front hub assembly unless you have the very specialized puller and press tools to remove and install the bearings. It is recommended to replace hub and bearing as an...
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I have a 2011 Chevy Aveo LT. When I have the AC on at idle the vehicle overheats. What could be some things to look at? The radiat
Hi there. An overheating problem while idling could be caused by multiple issues, ranging from sludge that is clogging the coolant lines, to a radiator fan that is not activating as well as it should. It is also possible that...
Question
Oxygen sensor all over the place with readings
Oxygen sensors that are in-line after the catalytic converter (i.e., downstream sensors) should output a relatively steady voltage. The purpose of the downstream oxygen sensor is to monitor the efficiency of the converter rather than provide feedback to the the...
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How do I use SelectShift?
Your truck is equipped with an automatic transmission that comes with SelectShift. SelectShift allows you to manually change the gears of the transmission even though the car is automatic. To use SelectShift. Move the gearshift from drive to manual....
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I have a 99 Chevy Tahoe and when I was driving it got hot real fast and turn off and when I tried to start it up it turned off
Hello there. I think we answered your question a few minutes ago, but if not - here is what we suggested. It's quite possible you have two separate things going on with your Chevrolet. First, if the vehicle gets really...
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Hello I have a lancer and it just shut off on me driving on the freeway..sounds like its just winding like if there's no belt on i
A possibility is a broken timing belt but there are other common possibilities such as an engine sensor failure, ignition switch failure, fuel pump failure and so forth. The good news is you do not have an intermittent problem but...
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2008 Chrysler 300 5.7 hemi if the timing chain breaks will the valves or pistons be damaged
Your engine is an interference engine and so it is possible that the valves can hit the pistons if the timing chain breaks. Used engines can be sourced via Car-part.com or like databases. To let you know precisely of any...
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Can I repair the 5/16 nylon fuel line (high pressure line) with a splice of the smaller 3/8 nylon fuel line using a hose splice?
Hello. The fuel line is under fuel pressure and should only be repaired using a repair that is using an approved repair with certified parts. Using the wrong fuel line repair parts may cause a fuel line to rupture causing...
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New battery kia forte koup wont start or crank just one click then nothing
Hi Jordan. Thanks for contacting us today. When it's really cold outside, even a brand new battery can have difficulty starting the vehicle. This is due to low cranking amps. However, if the battery is brand new (like within a...
Question
gas to diesel engine swap
Hi there. You will need to check with The State of Delaware's DMV to determine if this type of engine swap is legal. On the mechanical side, I wouldn't recommend this, unless you've got a pretty large budget for changing...
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Can your front differential make noise and cause vibration with increased rpm while in park? It's a 2008 jeep commander.
Any part that was impacted in the collision, for instance the crankshaft harmonic balancer, could be a cause. Of course, the differential, including bearings, is not implicated if the car is not moving when you are able to generate the...
Question
Car won't start 2002 Toyota Camry
Hello - your symptoms are a bit confusing. The "starts, but shuts off rather quickly" behavior could be a security system problem with your key. The stalling when slowing or stopped could be dirty throttle body, malfunctioning idle air control...
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Engine Shaking after low oil
It is very possible you have damaged the crankshaft and camshaft bearings. Ideally, the person changing the oil should have taken a sample of the oil that came out first to see if there are metal shavings in the oil....