I have a 1969 Lincoln that was shifting fine and now it doesn’t seem to go into 3rd. I don’t hear any vacuum leaks .. any suggestions?
Hi Tom –
Before removing the transmission for an overhaul I would do the following. Check the fluid for proper level and color first. Next, inspect the transmission kickdown lever and its linkage carefully and repair if necessary. Then have the vacuum supply from the engine to the transmission modulator and the modulator itself inspected and corrected if necessary. If you are not prepared to do this yourself, have a trusted local transmission shop do it for you. The technician will also be able to road test your car for you at the same time.