Columbia SC Auto Repair Pro on How to Fix a Broken Exhaust Strap

We have all seen a car, barreling down the highway, muffler sparking as it bumps along the road.  It is an ugly thing, not to mention terribly dangerous.  If you even hear your muffler making that clunk, clunk bounce as you ride along, you need to see what the problem is.  You are likely looking at a broken or badly worn exhaust strap (also called an exhaust hanger).  An exhaust strap is a lot like a heavy duty strength rubber band.  Over time, that rubber begins to deteriorate and stretch.  As it begins to lose elasticity, it slowly loosens its grip on the muffler.  If your exhaust hanger has broken completely you get a dragging muffler.  Lucky for you, replacing an exhaust strap is an auto repair that you can do yourself.

First, you will need to find the exhaust straps on your automobile.  Start at the tailpipe and work backwards toward the muffler.  You will find one or more thick, black, rubber exhaust straps, or exhaust hangers.  If one of them is totally broken it will be pretty easy to see.  Check the hangers to see if they are tight. When you determine which one or ones are the problem, you’ll need to remove and replace them.   

To get an exhaust strap off you will remove it from the top mount attaching it to the car and the mount to the muffler itself.  Keep in mind that the strap may be in more than one piece if it was badly deteriorated.  Be sure that you remove all of the pieces.

Now it is time to install your new exhaust hanger or exhaust strap.  You should start by attaching the side that mounts right to the car.  Just let the strap hang where it is for now while you are prepping to attach the muffler.  This is where having a helper comes in handy.  If you are working alone, be sure to check out the mechanic tip below this section.  Have your helper hold the muffler in place so you can attach the new exhaust hanger. 

Mechanic Tip: When you are working solo and need to replace an exhaust strap, you will have to slip the muffler into the hanger at the same time you are securing the muffler in place. To install the new exhaust strap using only one hand, use a crescent wrench as your helper.  Grab a crescent wrench with a large hole and slide the handle’s end through your exhaust hanger.  Next place the hole in the handle over the exhaust mount.  Now just slide the exhaust hanger over the mount!  And you thought you needed a helper…

And you are done!  It is as simple as 1, 2, 3!  Locate the bad exhaust strap, remove the faulty exhaust hanger and replace it with a strong, new strap.  No more clunking! 

If you do not have the time to complete this auto repair on your own, we would love to help you out.  Drop by our Columbia, SC Auto Repair Shop , contact via web or call us at 803-735-7902 to set an appointment.  We have been proudly serving the greater Columbia SC area for nearly 30 years!

Exhaust Problems & Noises - Columbia SC Auto Repair Pro Info

Exhaust noises mean exhaust problems.  And when you have exhaust problems, you need to get them taken care of quick.  Some unresolved exhaust issues could become deadly to your passengers or yourself.   

The first step in solving any auto trouble situation is locating the source.  When your auto repair troubles lie with your exhaust system, there are many tell-tale noises you may be able to use to help diagnose your specific exhaust problem.  Once diagnosed, you can then determine if you need an auto repair shop that offers muffler and exhaust repairs.

One sound you may be hearing while your engine is running is a rattling or buzzing sort of noise. This is at times caused by loose heat shields that are located in the region of your catalytic converter or exhaust pipes. Rust weakens spot welds that are holding the heat shields to the exhaust system. When a shield has gotten loose enough to start vibrating it may create a rattling or buzzing noise that can often be heard through the whole car. There are other noises that may only be able to be detected while running at certain RPMs or only when you are decelerating.  This is attributable to harmonic vibrations.  The vibrations are shaking your exhaust system at a resounding frequency.

Finding loose heat shields can get tricky because they are not always easily visible.  a medium-sized screwdriver can aid in inspecting shields, utilizing it to check for looseness. If you do find a loose spot weld, loose heat shields can be re-secured by re-welding, and in some cases, by installing some clamps. Replacement of a heat shield is recommended if badly rusted or showing other more extensive damage. NEVER remove a loose heat shield without replacing it! These are necessary parts to keep the intense heat away from the car’s floor pan and other sensitive mechanisms in the vicinity.

Another buzzing variety of noise you may hear originating from your exhaust is harmonic resonance. This is frequently seen with high revving four-cylinder engines.  This type of noise is typically loudest when operating at certain RPMs or while accelerating hard, especially if you are with a load.

If your exhaust related noises seem to come from the tailpipe, you need to listen carefully.  If the sound being produced is a whistle or high-pitched hiss, you may have a restriction within your exhaust system.  This restriction causes abnormally high backpressure.  Another issue often associated with this backpressure is the engine lacking high-speed power.  Experiencing reduced fuel mileage is also another indication that your engine is having problems exhaling.

Mufflers and exhaust pipes will all start rusting and get rotted sooner or later.  If your vehicle is or has been exposed to large quantities of winter road salt or if it is often driven for short-trips with heavy stop-and-go driving, you may experience this type of damage to appear sooner. Short trips create a high level of condensation in the exhaust system.  This is because your muffler and pipes are not being allowed time to reach a high enough temperature to evaporate this water. When your muffler is found further from the converter in the back of the vehicle, moisture will pool inside your muffler, which creates rust and erosion from within. As this water combines with sulfur in the exhaust it creates highly corrosive acids that will then begin to eat through the exhaust system’s metal parts.

Mufflers and resonators that are behind your rear axle are typically quite vulnerable to this kind of corrosion.  This is because they usually run a lot cooler than a front-mounted muffler, creating a moisture trap.  They often experience trouble or failure due to internal corrosion.

Auto Problem Tips from the Best Columbia SC Auto Repair Pro

Auto repairs are an unfortunate necessity. 

Every auto owner faces unexpected breakdowns sometime.  While there are endless causes, here are some basic, commonly encountered auto repair issues you may experience. 

Battery Problems

A battery suffering from a low charge, no charge at all or one that is not able to hold a charge will leave you stuck.  Usually a set of jumper cables and a willing fellow motorist can remedy the immediate issue.  To be fully prepared, you may choose to purchase a road assistance device that can offer a jump start without another auto present. While the specific capabilities of the devices differ, most include a battery recharger.  It is ALWAYS advised that you keep jumper cables in your auto at all times.  Most issues arising from battery problems do not require a skilled mechanic or professional auto repair shop.

Overheating Engine

As temperatures go up, so do your odds of having your auto’s engine to overheat.  The usual causes of overheating: leaks or extremely low fluid levels, as well as defective cooling systems.  If you’re experiencing an overheating problem you should bring some extra water along in case of an emergency.  When the car overheats, wait for your entire engine to cool enough to safely touch before even raising the hood.  Once relatively cool you should raise the hood allowing excess heat to completely disperse.  Once cool enough to touch, open your water overflow tank or reservoir and check that the water levels are within the suggested markings.  For safety, always allow the engine to adequately cool before checking or adding any water or coolant to the cooling system.  If your auto is overheating, you need to locate a professional auto repair shop or mechanic to determine the reason and fix the issue before causing further damage. 

Engine Hesitation or Engine Surge

There are a multitude of issues that can lead to engine hesitation or surge.  Some of these may include a polluted air filter, or even hotter, more humid weather.  During extremely hot weather, particularly in rather humid conditions, some autos’ engines begin to struggle just to work properly.  Your vehicle must re-circulate exhaust gases coming through the engine in order to effectively reduce the exhaust emissions emitted into the air. Hotter, very humid weather can cause the exhaust flow to gather within the intake manifold affecting the auto’s drivability. It can also cause blockages, leading to the need for more significant auto repairs.

Alternator Failure

Your alternator is an essential part of your car.  Alternator failure will leave you sitting on the side of the road.  If you are having alternator problems, get it checked out and tested right away.  Signs of alternator problems might include a sluggish battery.  If the headlights and/or dashboard lights dim when the auto is idling, it is definitely pointing to alternator troubles. These warning signs should not be ignored. A mechanic or auto repair shop can help in quickly diagnosing and fixing the problem, avoiding the further complications or a breakdown.