Free Car Diagnostic

Front End Dives when Braking

Conditions when car trouble occurs
After the driver step on the brake pedal to stop the car the front end of the car dives.

Possible cause of car trouble
1)Problem with the front shocks
2)Problem with the front strut cartridges

Troubleshooting car problem
If the car front end dives when the brake is applies, this does not necessary mean that there is a problem on the brake system but rather a problem on the suspension particularly the front shock absorber or the front strut cartridges. Front suspension has two key components which is the shocks and the spring. These two components are separated with each other, however there are also cars in which these two key components are integrated into a single unit in this case it is called the strut. The shock portion of the strut is the strut cartridges or the damper.

In the front suspension the purpose of the spring is to absorb the bumps on the road and the shock absorber on the strut cartridges is the one that keep the bouncing of your car restricted. Now when the brake is applied, the weight of your car will be thrown into the front end. This weight will be absorbed by the front spring. If the shocks or the cartridges are faulty it will not control the contraction of the spring and this makes the front end of your car to dive.

What to do Next to Fix Front End Dives when Braking?
First is to determine what type of suspension you have on your car, identify if the suspension is shock type or strut type. If the problem is the shocks just replace the parts. But if the mechanic recommends that the spring is also needed to be replaced, do not agree with the recommendation because springs do not usually wear out and it may cost you for a part that is not necessary to be replaced.

If your car has strut type suspension it is necessary to replace the assembly since most car do not have replaceable strut cartridges however just replaced the strut cartridges if it can be replace. Replacing the strut cartridges will depend on the model of your car most car do not have replaceable strut cartridges. You can verify if the strut on your car is replaceable or not, contact your car local dealer and ask about the particular model of your car if the cartridges is replaceable or not.

Rattling Sound Coming from Brake

There is a rattling noise coming from brake. Rattling sound that comes from the brake is usually caused of loose parts on the affected brakes.


Vibration of Steering Wheel at Certain Speed

The steering wheel vibrates when the car reach a certain the possible reason is that the front wheel is imbalance or there is a loose front end parts.

Car Pulls to One Side When Braking

The car pulls to one side when the brake is applied. When the car pulls to one side when the brake is applied, there are three possible causes for this problem that is the front tires, front end, and front brakes. To determine which of the three causes the problems check the car.

Check the front tires
Using a tire pressure gauge, measure the tire pressure of the left and right front tire. Compare if both tires have the same tire pressure. When tires have uneven tire pressure then the cause of the problem is imbalance tire pressure. When both tires are identically inflated then the problem is not the tire pressure. The next to check is the front end. Read also: How to Check Tyre Pressure

Check front end alignment
To check the front end alignment, drive the car on a level road. Relax your grip on the steering wheel and check if the car pulls to one side. Do not step on the brake pedal when doing this test to determine if the car also pulls to one side even when the brake is not applied.

If the car pulls to one side, then the problem is the front end alignment. If the car does not pull to one side then it is not the front end alignment, next to check is the brake.

Check the brakes
To check the brakes, park the car on a level road and engage the parking brake. Loosen the nut on both the front tires. Jack up the car so that both front tires will jack up. Place a tripod under the car than lower the car into the tripod. Do this on the other side of the car. Next is to remove the front tires so that the brakes will be exposed. Inspect the brake disc for any oily substance present on the disc. Rub your finger on the disc and feel if there is any grease or fluid on the surface of the disc.

If there is oil, grease or fluid present on the surface of the disc then the problem is a contaminated disc which causes the pulling. Disc brake works when there is friction between the disc and the brake pads, if there is a presence of substance as mentioned above, frictions between disc and pads will be reduced and this will result to reduce braking performance on the affected side. If this scenario will happen, the right side and the left side brake will not have even braking and this will result in the car pulling to one side especially the affected side when the brake is applied.

If there is no presence of grease, oil or fluid on the disc the next thing to check is the disc, inspect if one disc is thicker than the other. Using a ruler measure the thickness of the disc (a micrometer is an accurate tool for measuring the thickness of the disc).

If one of the discs is thicker than the other disc then a mismatch disc is the cause of the car pulling to one side. In order for the car become stable and not pulling when the brake is applied the brakes must be identical if one is thicker then the problem will occur.

If both discs are identical then the only possible problem is the brake caliper, in this case, you need a mechanic to confirm this problem.

How to fix car pulling to one side when braking
Uneven tire pressure
Just add enough air on the underinflated tire so that both the front tires will have the same pressure. Also, make sure that the tire pressure is in standard intended for your car model.

Front end alignment
Bring the car to the car shop and let the mechanic inspect the front end and align if necessary. One or more components may need to be replaced but before agreeing to replacements have a second opinion with another mechanic.

Presence of oil, grease or fluid on front brakes
Bring the car to a car shop and have a mechanic to look for any leak on the brake system that causes the presence of oil, grease or fluid. The brake caliper and the brake line is the portion to be checked and repair or replace if necessary.

Brake disc mismatch
Replace the disc to become a match with each other. When placing the disc consider also replacing the pads.
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Battery Warning Light Comes On While Driving

Battery Warning Lights
Conditions when car problem occur
The battery light comes on steady while driving.

Possible cause of lit battery warning lights
1) The alternator belt is damage.
2) The alternator is faulty.

Troubleshooting battery warning lights that come on
When your battery warning lights on the dashboard comes on while driving two reasons will cause this, first is the alternator belt is broken and second, the alternator failed. The alternator is being driven by the engine using belts for the purpose of supplying charge on the battery and provides electrical power on all of your car accessories. If the battery light comes on while driving it means that the alternator is not generating electrical power for your car and all the car accessories will draw power to the battery until the battery also losses power. Now why the alternator is not supplying electrical power to the battery and accessories?

Grinding Noise when Braking

During braking grinding noise occurs. Several problems occurs on the brake system and the most common of them all is grinding noise when braking. 

However if the brake produce grinding sound it does not always mean that there is a brake problem but rather it warns the driver the brakes suffers excessive worn on the brake linings and this is the starts of a bigger problem that may occur if the driver neglect this sounds.

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