Tesla confirmed Field's departure to Business Insider.
Field, a former engineer at Apple and Ford, had been at Tesla since 2013.
The Model 3 is pegged as the company's first mass-market auto and in April of this year, Tesla said it hit a production run high of 2,270 Model 3 vehicles per week. The company has been trying to exceed the 5,000-per-week production target for months, but has faced many obstacles along the way.
"After nearly five years at Tesla, Doug Field is moving on", a company spokesman told AFP.
"After nearly five years at Tesla, Doug Field is moving on", a spokesman told this publication Tuesday.
"The problem is that Tesla appears to be good at "burst" rates but it needs to attain consistency, which will come, but my forecast is that they will sell just over 100,000 Model 3s this year in the U.S.", analyst Alan Baum told Forbes.
On May 11, The Journal reported that Field would take a "six-week sabbatical". Weeks later, Field began his leave of absence to "recharge and spend time with his family", the company initially said.
The man who was once in charge of manufacturing at Tesla has left the company - which is fresh off a production milestone.
Tesla announced in June that it was cutting nine percent of its workforce to enhance profitability, but said the move would not affect an ambitious production ramp-up of its Model 3 sedan.
While the second-quarter delivery numbers will get a fair amount of attention from analysts and investors, the story driving Tesla shares higher is Model 3 production, and whether the company can sustain a higher output rate for its newest model and power the company to become cash flow positive in the second half of 2018.
In early April, The Information released a report that claimed there was turmoil at the upper levels of Tesla's management team.
Tesla has reached the production target for its Model 3 vehicle, according to a regulatory filing published on Monday (2 July).