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Frequently Asked QuestionsAsk APW
Are all Jeep Wrangler exhaust manifold replacements legal?Answer: Majority of online stores offer 49-state legal replacements for Jeep Wrangler exhaust manifolds. This means that these replacements are permitted for street use in all American states except for California since they have stricter emissions standards. But for the Jeep owners in California, some of the most trusted online stores on the Internet offer 50-state legal replacements for damaged exhaust manifolds. The information on whether the exhaust manifold replacement is 50- or 49-state legal can usually be found on the item's product description.
Aside from hearing loud ticking or booming noises from the exhaust system, how can a Jeep Wrangler owner know if the exhaust manifold has a leakage problem?Answer: A Jeep Wrangler owner can do some DIY tests to diagnose leaks in their truck's exhaust manifold. If the engine is revved up, they can search for scents that are similar to raw gas or an overly sweet smell that signals raw carbon releases. These foul-smelling scents are from the unburned gases that failed to enter the catalytic converter for purification. Another manifestation of unburned fuel is the presence of black or gray smoke coming out of the manifold. If the engine is turned off, the owner can use a portable smoke machine to check for exhaust manifold leaks. A smoke machine attached to the manifold will pressurize the entire system. If the owner sees any sign of the smoke machine's white smoke coming out of the manifold pipes, the Wrangler definitely has a manifold leakage.
Can the exhaust manifold gasket cause leaks in the Jeep Wrangler's exhaust manifold?Answer: Yes. Apart from rust accumulation, a faulty gasket is one of the top causes of exhaust manifold failure. Since the exhaust manifold gasket in the Jeep Wrangler's exhaust manifold serves as the seal that keeps the gases inside, any kind of damage to these sealing agents can definitely result to gas leakage. When this happens, the only solution is to replace the broken gasket.