How to Fix Heat Shield Rattle of Jeep Wrangler
when I put my Jeep in reverse and come to a halt at idle while it’s cold, it makes a grating vibrating noise. The heat shield over the exhaust, where the two bolts link through the passenger floorboard, was where it was coming from, I discovered. I tried to tighten them up, but it seems to have made things worse. Did you try putting a piece of foam behind the connection to the tub, but it still rattled?
I’ve had a bothersome rattling for a while now. Of course, the dealer was unable to locate. So, I slid under the Jeep today and began lightly “tapping” things with my hand to see what was loose. Surprisingly, tapping this heat shield produces the same sound I’ve been hearing. Regrettably, it is securely fastened. Anyone else encountering this problem or have any suggestions for how to resolve it? Clearly a crucial shield, else I’d just remove it and call it a day. It gives the impression that the Jeep is more than ten years old.
Removing shields is always a bad idea. They protect heat-sensitive items like carpets from being damaged. Is the rattle coming from inside a catalytic converter? Fastening, bending, and other methods can usually be used to silence a shield.
Shield from the sun
The heat shield is the most common source of rattling in your Jeep’s exhaust system. As the car ages and accumulates miles, they may get a little sloppy. It will tremble all of the time after this occurs.When you let go of the gas pedal while revving the motor in neutral, it’s really evident.As the engine slows down from its higher RPMs, you should hear a rattling.
Heat shield rattle solution
There are a handful of solutions for repairing a bothersome heat shield rattle in your car. You have the option of completely replacing the heat shield or tightening the loose parts with hose clamps. Take a look at the instructions below for a step-by-step guide on how to accomplish this.
Replacing a heat shield
When it comes to replacing your heat shield, a peel and stick heat shield is an excellent solution. Because of its performance and ease of use, the Thermal Block heat shield is a fantastic spot fix. Thermal Block has a strong adhesive, and the foil-facing side of the product reflects 98 percent of radiant heat.
Our Firewall Ceramic Thermal Coating is a terrific solution if you’re searching for a paintable, easy-to-apply thermal coating. It has vacuum-sealed spheres that prevent heat transfer and is non-toxic and waterproof. Brush, roller, or spray gun applications are simple.
How to Replace a Heat Shield
Completely remove the heat shield
When a heat shield becomes loose or damaged, some motorists are prone to simply throwing it away. We do not endorse this solution, even though it technically stops the rattle. In just one year, the California Department of Forestry and Fire Protection reported 100 vehicle-caused wildfires. The largest offender is hot catalytic converters. Hot exhaust elements might start fires when your car is parked on grass. Heat shields assist in preventing such mishaps. You must also safeguard the underbody components of your vehicle. Heat shields work in both directions to keep you safe from the elements.
Replace the heat shield
You can even change your heat shields in their entirety. This is achievable, but if you’ve never done it before, it can be difficult. You’ll need to purchase new heat shields ($40 or more each) and be prepared to disassemble and reassemble the old parts. It’s only a few bolts and some sheet metal, but it’s a pain to deal with. If you bring your automobile to the shop, the parts will cost around $150 and the labor will take around an hour. Approximately $300 should be the whole bill.
Hose clamps
Using stainless steel hose clamps to tighten any loose exhaust components is the easiest and most cost-effective approach. Once you’ve found the rattling element, the hose clamp remedy is rather simple. Simply open your steel hose clamp and thoroughly wrap it around the heat shields around your loose component, sandwiching it inside. Tighten the clamp until the part is secure. Use two hose clamps if the loose component is too big for one. To construct a single huge clamp, thread one hose clamp into the other. When wrapping a catalytic converter, people often need to utilize two clamps. For roughly $10, you can get a ten-pack of 3″ hose clamps, which isn’t bad considering how annoying the rattle can be.
How do I stop my heat shield from rattling?
It’s best to repair or reattach a rattling heat shield. You may fix your chattering heat shield in a few ways: You might be able to tack the heat shield to the exhaust if you have access to a welder. Take cautious not to burn through the thin metal heat shield or the exhaust pipe.
How much does it cost to fix a rattling heat shield?
If you bring your automobile to the shop, the parts will cost around $150 and the labor will take around an hour. Approximately $300 should be the whole bill.
Why is my Jeep Wrangler rattling?
Because of loose hardware or rust damage, the heat shield will shake and make a rattling sound if it becomes loose, damaged, or destroyed. The rattling will be most noticeable at low engine speeds, and the pitch or tone of the rattling may vary depending on engine speed.
Where is the heat shield on a Jeep Wrangler?
Above the muffler, the shield is a fragile metal sheet. It covers the entire top of the muffler, preventing heat transfer from the muffler to the rear hatch area. You can’t miss your shield when it’s in place.
