Inspect the exhaust tubing.

Is the exhaust tubing kinked?

Go to Step 2

Go To Step 3

If possible, repair the damaged exhaust tubing. Otherwise, replace the exhaust tubing.

Is the exhaust system restricted?

Go to Step 3

System OK

Inspect the muffler.

Is the muffler restricted?

Go to Step 4

Go to Step 5

1. If a restriction is likely, remove the muffler and visually inspect it.
2. If the damage to the muffler is not repairable, replace the muffler.
3. Correct the engine malfunction.

Is the exhaust system restricted?

Go to Step 5

System OK

Inspect the end of the tailpipe.

Is the end of the tailpipe obstructed?

Go to Step 6

Go to Step 7

Remove the obstruction, or if the end of the tailpipe is crimped, straighten the outlet.

Is the exhaust system restricted?

Go to Step 7

System OK

Inspect the catalytic converter for obstructions, which may have occured as a result of a serious engine manlfunction.

Is the catalytic converter obstructed?

Go to Step 8

Go to Step 1

1. Replace the catalytic converter.
2. Correct the engine malfunction.

Is the exhaust system restricted?

--

System OK