1988 Jeep Comanche Exhaust Manifold Gasket Replacement

As the engine in your Jeep Comanche runs, hot exhaust gases are expelled from the combustion chamber into the exhaust manifold. The gases are kept in check by a series of exhaust gaskets, most notably the exhaust manifold gasket. If the exhaust manifold gasket is damaged or leaking, the engine will produce excessive noise, and the exhaust gases will escape into the engine compartment instead of exiting out the tailpipe as they should. Replacing the gasket is fairly straightforward, and you will need only a few tools to complete the job.

Tools Used: Wrench set, Penetrating oil, Socket set, Gasket scraper, Anti-seize compound

Replace Exhaust Manifold Gasket

Raise the hood of your Comanche and prop it open. Remove the negative cable from the battery by turning the bolt counterclockwise with the wrench.

Locate the exhaust manifold bolts and spray them with the penetrating oil. The bolts are usually corroded into place, so if possible allow the oil to soak into the bolts for a few hours.

Loosen the exhaust manifold bolts by turning them counterclockwise with the socket. Pull the exhaust manifold from the engine. Remove any of the old gasket with the scraper.

Coat the exhaust manifold bolts with anti-seize compound. Slide the new gasket into place between the exhaust manifold and the engine. Tighten the exhaust manifold bolts by turning them clockwise with the socket. Start with the inside bolts and work toward the outside as you tighten.

Reattach the negative cable to the battery by turning the bolt clockwise with the wrench. Start the engine and check for exhaust leaks.

Tips & Warnings

If the exhaust manifold bolts won't loosen, try tapping them lightly with a small hammer.

Exhaust components can be hot. Use caution to avoid burns.

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