| quote | Originally posted by dlh61olds:
The heater core has been bypassed My question is; is the heater core a failure prone item in these cars?? If so, maybe I should leave it alone,
Second issue: check engine light works and I do get the bounce at key turn on. Does the bounce indicate a "selfcheck of the ECM"??? I get no codes except the 12 in diagnostic mode, even after driving a while. Does that indicate all is well or is the unit malfunctioning ????
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Code 12 indicates the ECM is working.
No other codes shows that the sensors appear to be in good working order.
The engine would likely not run if there was a serious issue with the ECM.
About keeping your car "original"...
That's fine if the original parts are all still working and in good condition.
We've seen lots of car with its "original paint" all faded and clearcoat flaking off.
Not worth much. "Original paint" only adds value if the paint is in pristine condition.
Replacing a leaking heater core with a new one doesn't make your car "less original".
Anymore than putting on new brake pads and tires will.
It's up to you as to whether to want to replace the heater core.
Yours may have developed a problem because it sat more than it was driven.
Rock Auto has them.
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