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Virtual Wrench
Virtual Wrench, Classic car expert
Category: Classic Car
Satisfied Customers: 14620
Experience:  35 years experience Foreign and Domestic
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I have 66 mustang with a c4 it starts out in 2nd and wont

Customer Question

hi I have 66 mustang with a c4 it starts out in 2nd and wont shift into 3rd gear I changed vac modulator still the same problem thanks curt
Submitted: 2 years ago.
Category: Classic Car
Expert:  Virtual Wrench replied 2 years ago.


The valve body will need to be removed and all the passages cleaned and then the system needs a line pressure test done at the same time. Not really a fix for the DIY'er because of the line pressure test but you might get lucky by just removing the valve body and cleaning all the tarnish on the passages and valves that slide in the passages.

Expert:  Virtual Wrench replied 2 years ago.


did you have any further questions? If not please rate my service.