Discovering noises from your car often is never reassuring, so listening noises on your Fiat Doblo suspensions when you pass a speed bump can be stressing. This indicator may be a sign of a insignificant problem as well as a warning of a much larger repair to come. In any case, it is fundamental to check the source and take the necessary actions to eliminate the problem, it is with this goal in mind that we wanted to write this document to support you see more clearly. We will first see the possible explanations for a crack when the speed bump passes, after that, what can be the reason of a squeaking noise when a speed bump is being passed and finally what to do if you have another noise when a speed bump is passed.
Suspension cracking noise Fiat Doblo
Check Fiat Doblo suspension
If you encounter a suspension noise when you pass a speed bump on your Fiat Doblo, and it is characterized by a “clack” or cracking, it is highly possible that your suspension block is the cause of it. Indeed, it may be the suspension cups, which, when they are dead, have the rubber (silentblock) that acts as a buffer and shock absorber for the upper part of the suspension that no longer fulfils its job during small bumps that compress the suspensions. To check if this is the problem that worries you, take a dented road and pay attention to the noise coming from your front axle as you pass over holes. If it is indeed the cups, think of changing them as soon as possible or you may ruin other parts and have to make more important maintenance.
Check the cardan shaft
If you are here because you have researched for “Fiat Doblo suspension noise” and the suspension is not the cause of your problem, it may be that the cardan shaft is responsible. Indeed, when the cardan bellows get old and the dirt/dust accumulates inside them their action is deteriorated and it is possible to experience a noise when they are in torsion. To check this, you can try both types of torsion, first vertical with suspension compressions on the speed bump passages, and horizontal when you are going to make a turn at low speed. If it cracks in these two conditions you should consider swapping it or them. If you have the feeling that this noise is more like a a loud noise on Fiat Doblo, don’t hesitate to consult this article.
Check steering hinges/stabilizer bar
Finally, when you find out a suspension noise when your Fiat Doblo passes over a speed bumps, it is imaginable that the hinges or the stabilizer bar are responsible. Simply like the gimbals, the steering part is mobilized when you change direction. If this is the situation, the parts that may have been destroyed by normal wear and tear or impacts (e. g. sidewalks). The steering hinges, the stabilizer bar hinges. can be the origins of your noises, to check it, place it under the automobile and apply twists on each of its elements to check that there is no special play on one of them, they are expected to resist you quite strongly over their entire travel. Remember to take your vehicle to your mechanic or swap them if they are involved.
squeaky noise speed bump Fiat Doblo
Check the stabilizer bar
If, on the other hand, you have a noise that is more like a squeak when you pass a speed bump with your Fiat Doblo, it is possible that it is the stabilizer bar itself that is concerned. Indeed, abnormal/pronounced wear of the latter can cause uncommon friction which can create this squeaking noise. Remember to check by passing under your automobile the condition of the paint on your bar which will reveal if there is friction. Second possible point, it may be your stabilizer bar silentblocks that are dried out and cause noise, in which case remove them from the cradle and grease them, this should eliminate the problem.
Check engine silentblocks
Finally, last point that we can check together, it is the engine silentblocks, actually, these silentblocks process as pads/shock absorbers between the engine and the cradle of the car, a pronounced weakness of these will generate a subsidence and therefore a space between the engine and the silentblocks, it may appear that a squeaking noise shows up when you pass a speed bumps or any holes with your Fiat Doblo. To change them go to your auto technician.
Other speed bump noise Fiat Doblo
If, even though all its assumptions, you still can’t uncover the origin of the noise your Fiat Doblo makes when you pass a speed bump, we encourage you to read this article on a loud noise on Fiat Doblo or to visit your mechanic in order to carry an in-depth check on your Fiat Doblo and find this problem.
