Friday, June 6, 2014
Car Shocks Oil Leaks
Oil leaking from an automobile may have numerous sources, and many car owners overlook the shocks as a possible culprit. Shocks use oil to dampen the movements of the vehicle, and this function can sometimes lead to a leak.
Location of Shock Leak
Most automobile suspensions use struts on the front wheels of the vehicle and shocks on the rear. Shocks will leak oil just inside the rear wheels of the vehicle. Struts also use oil and may also leak. Oil leaking from a shock may run down the shock or drip onto other suspension components or the vehicles frame.
Inspecting Shocks for Leaks
To locate the leak, wipe away any dirt or grime from the shock. After cleaning, drive the vehicle and recheck the shock for fresh oil. A leaking shock will also work less effectively. You can check its functionality by shoving down and then releasing the corner of the vehicle with the suspect shock. If the shock is working properly, the car will settle back to the original position without bouncing.
Dealing with Leaks
A leaking shock has either a corroded body or a failed seal. In either case the shock will require replacement. Shocks should be replaced in pairs, even if only one side has failed. The result of replacing both shocks at once will be an even amount of suspension support on each side of the vehicle.
Saturday, October 12, 2013
How to Test for Car Exhaust Manifold Leaks
For many, the need to find car exhaust manifold leaks follows a failed emissions test. You might also hear a rumble when starting your car or while it runs cold. Thankfully, finding out whether you do, in fact, have a leak is a fairly easy process.
Instructions
- 1
Test your car shortly after starting it. You may be able to hear and feel the leak more easily while it is still cold. You also lower the risk of burning yourself.
2Sniff around for exhaust. This is the least definitive way to test your manifold for leaks, but it may be a sign. Carbon monoxide, which is what is released by your exhaust system, has no smell.
3Listen to your car. Most exhaust manifold cracks or leaks will cause a ticking noise, especially when your car is running cold. There may even be a noticeable vibration that goes along with the noise.
4Use a stethoscope to listen to the manifold closely. You should be able to determine the location of the leak if there is one. If you dont have a stethoscope, use a hose or tube to localize sound.
5Check your manifold physically. If you can get it out of your car and manually inspect the part, you may be able to determine warping or cracking. Since this requires removing parts from your engine, you may want to consult a mechanic.
6Look for damage around the exhaust ports. Discoloration or burnt paint often signifies a leak. Burned spark plugs, boots or valves indicate a leak as well. If you notice this kind of damage, have your manifold fixed immediately to avoid more serious fires.
7Take your car in for an emissions test, even if it is not due. Most leaks reduce the oxygen output and will cause the car to fail the test. If your manifold passes inspections, you may just need to have it straightened out due to warping.