Q: How to Service the Exhaust Pipe Y-Pipe with Dual Catalytic Converters on Ford Explorer?
A: A vehicle placed on a hoist in NEUTRAL driving position needs to be used for exhaust Y-pipe dual catalytic converter servicing. You should support the exhaust system with a proper jack for the task. Separate the electrical connection of both heated oxygen sensors (HO2S) and catalyst monitor sensors. The process begins by eliminating all hardware components which join the exhaust Y-pipe dual catalytic converter to the muffler assembly including bolts and nuts as well as the gasket. The next procedure requires removal of the transmission support crossmember. Separate the nuts between the exhaust Y-pipe dual catalytic converter and the exhaust manifold for removal before discarding them. Next remove the exhaust Y-pipe dual catalytic converter from its position. Install anti-seize lubricant on the HO2S and catalyst monitor sensor threads before installing them at 40 Nm (30 ft lbs) torque. Position the Y-pipe dual catalytic converter exhaust and use new nuts for its installation to the exhaust manifold. Place a new gasket in addition to bolts and nuts for the exhaust Y-pipe dual catalytic converter to muffler assembly, and install them loosely. Place back the transmission crossmember before you align the vehicle exhaust system and connect power lines to HO2S and catalyst monitor sensors.
Q: How to Service and Repair the Exhaust Pipe Inlet on Ford Mustang?
A: The first step to maintain or fix the muffler inlet pipe involves having the vehicle positioned on a hoist with NEUTRAL gear selected. You need to start by disconnecting and removing the exhaust coupler while you take off the intermediate pipe from its position on the catalytic converter assembly. After this step discard the exhaust coupler. The service starts when you loosen and detach the muffler clamp to get the intermediate pipe separated from the muffler. Finally, take the intermediate pipe out of the vehicle. Install the new intermediate pipe by using a new exhaust clamp which should be tightened to 54 Nm (40 ft. lbs.) but kept below the bottom of the notches. Make sure the pipe fully enters the coupler by pushing the muffler forward and confirm that the intermediate pipe has the correct position where the knurled section faces the coupler lip. Place the new exhaust coupler onto the intermediate pipe and guide it to the catalytic converter while pushing it down until the converter button fits into the notch of the pipe. End the exhaust coupling process through proper nut tightening while alternating the torque in 10 Nm (89 inch lbs.) quantities up to 54 Nm (40 ft. lbs.).
Q: How to Service and Repair the Exhaust Pipe Downpipe for the 2.3L Engine on Ford Ranger?
A: Place the 2.3L vehicle for exhaust downpipe servicing by placing it on a hoist in NEUTRAL position. Disconnect the electrical connectors of both Heated Oxygen Sensor (HO2S) and Catalyst Monitor Sensor (CMS). Separate the exhaust downpipe from the muffler and tailpipe assembly through removal of two bolts and two flagnuts with a gasket that must be discarded. The exhaust manifold next to downpipe requires the removal of two retaining nuts before their disposal. You need to uninstall the transmission mount together with the isolator-to-transmission bolt to detach the exhaust downpipe. Installation should be carried out without oil or grease-based lubricants on isolators since rubber deterioration will occur. Clean every contact point on the exhaust downpipe before settings its proper position into the vehicle. Place the transmission mount with an isolator-to-transmission bolt installed and tighten it at 90 Nm (66 lb-ft). Fasten together two new exhaust downpipe-to-exhaust manifold nuts while tightening them to 40 Nm (30 lb-ft). After placing the exhaust downpipe-to-muffler and tailpipe assembly gasket follow the installation of two exhaust downpipe-to-muffler and tailpipe assembly bolts with two new flagnuts and tighten to 40 Nm (30 lb-ft). The final step requires reconnecting HO2S and CMS electrical connectors after which technicians should validate the exhaust system isolators maintain zero load position; additional exhaust system alignment must occur if zero load is not achieved.