Intake manifold temperature creeping higher
I have been noticing that my manifold temperature has been creeping higher on my ISL 370 w/80K miles. It used to be 10-14 degrees F higher than ambient temperature. But now I'm seeing (via Silverleaf)...
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The air filter minder is easy to test. Pull the hose off the filter/pipe between filter and turbo. Suck on it. The indicator should peg at highest reading and stay there until you push the reset button. Reset.
BUT, you are absolutely correct, a high air filter minder reading is just one of the reasons for replacing the air filter. Remember, if the filter pleats have a crack in them (that is why you NEVER remove and bang a filter to remove dirt) the air filter minder reading will always be low.
Filters are made of paper. They degrade with time. Good idea to replace every three years whether they filter minder suggest a problem or not.
BUT, you are absolutely correct, a high air filter minder reading is just one of the reasons for replacing the air filter. Remember, if the filter pleats have a crack in them (that is why you NEVER remove and bang a filter to remove dirt) the air filter minder reading will always be low.
Filters are made of paper. They degrade with time. Good idea to replace every three years whether they filter minder suggest a problem or not.
