Editing Ford Cologne V6 engine (section)

==4.0==
[[File:1992 4.0 V6 engine from a Ford Ranger.jpg|thumb|A 1992 4.0 from a [[Ford Ranger]] pickup]]

The [[pushrod]] {{cvt|3958|/|4009|cc|L CID|1|disp=flip}}, with a bore and stroke {{cvt|100x84|mm|in|2}} version, although produced in Cologne, Germany, was only fitted to American vehicles.<ref>[http://www.fordpowerproducts.com/FordPowerProducts/pdf/SOHC_640Leaflet_4_2003.pdf] {{webarchive|url=https://web.archive.org/web/20081203072612/http://www.fordpowerproducts.com/FordPowerProducts/pdf/SOHC_640Leaflet_4_2003.pdf|date=December 3, 2008}}</ref> The OHV engine was produced until 2000 and was used in the [[Ford Explorer]], [[Ford Aerostar]], Mazda B4000, and [[Ford Ranger]]. Output was {{cvt|160|hp|kW PS|0}} and {{cvt|305|Nm|lbft|0}}. Though some variation exists, typically {{cvt|155|hp|kW PS|0}} is quoted as horsepower for 1990–92 applications.{{Citation needed|date=June 2008}}

Applications:
* Ford Ranger/[[Mazda B-Series]]
* Ford Explorer/[[Mazda Navajo]]
* [[Cross Lander 244X]]
* [[Ford Aerostar]] (1990–1997)

===SOHC===

The [[SOHC]] version was introduced in 1997 in the Ford Explorer, alongside the original pushrod version. It features a [[variable length intake manifold]] and produces {{cvt|210|hp|kW PS|0}} and {{cvt|254|lbft|Nm|0}}<sub>f</sub>. (The variable length intake manifold was discontinued in 1998, replaced by a standard intake.) It uses a [[jackshaft]] in place of a camshaft to drive a timing chain to each cylinder head. Three timing chains are used, one from the crank to the jackshaft, one in the front of the engine to drive the cam for the left bank, and one on the back of the engine to drive the cam for the right bank. In addition, the 4WD Ranger/Explorer with the SOHC 4.0 had a 4th timing chain driving what Ford called a balance shaft. Ford has since phased out the engine in favor of the more powerful and efficient [[Ford Cyclone engine|Duratec 37]].<ref name="Ford Power Products Catalogue">[http://www.fordpowerproducts.com/FordPowerProducts/pdf/SOHC_640Leaflet_4_2003.pdf Ford], Ford Power Products Catalogue. {{webarchive |url=https://web.archive.org/web/20081203072612/http://www.fordpowerproducts.com/FordPowerProducts/pdf/SOHC_640Leaflet_4_2003.pdf |date=December 3, 2008 }}</ref>

==== Timing chain problems ====

The 4.0 SOHC engine was notorious for the [[Original equipment manufacturer|OEM]] [[Timing belt (camshaft)|timing chain]] guides and tensioners breaking, resulting in timing chain rattle or "death rattle". This problem can occur as early as {{cvt|45000|mi}} in some vehicles. Due to the SOHC engine's unique design involving both front and rear timing chains, the repair of the timing guides would often require complete engine removal depending on the severity of the problem. When the engine is run for an extended period of time with this issue the engine can jump timing, damaging the heads and valves.

Timing chain rattle was mitigated in later years of the SOHC (in most vehicles, after 2002) with updated cassettes and tensioners. This problem occurs with varying frequency among some Ford vehicles equipped with the SOHC engine including the [[Ford Mustang]], [[Ford Explorer]], and [[Ford Ranger (North America)|Ford Ranger]]. The 4.0 OHV was not affected by this issue.<ref>{{cite web|url=http://www.explorerforum.com/forums/index.php?threads/timing-chain-rattle-resolution-process-sohc-v6.278100/ |title=Timing chain rattle resolution process – SOHC V6 ''ExplorerForum'' |publisher=ExplorerForum.com |date=2010-04-25 |access-date=2018-06-18}}</ref>

====Other versions====

A version of the engine is used in the [[Land Rover Discovery|Land Rover Discovery 3 / LR3]] in Australia/North America and [[Ford Courier]] in Australia, producing {{cvt|216|hp|kW PS|0}} and {{cvt|250|lbft|Nm|0}} of torque at 3,000&nbsp;rpm for the Land Rover version. The Ford Courier version produces {{cvt|154|kW|PS hp|0}} of power and {{cvt|323|Nm|kgm lbft|0}} of torque. The Land Rover version of the engine became unavailable in the United States for the 2008 model year.<ref>{{cite web|url=http://www.edmunds.com/landrover/lr3/review.html |title=Land Rover LR3 Review ''Edmunds'' |publisher=Edmunds.com |date=2010-08-11 |access-date=2011-01-06}}</ref>

Applications:
* 2001–2012 [[Ford Ranger (North America)|Ford Ranger]]
* 2001–2010 [[Mazda B-Series (North America)|Mazda B4000]]
* 1997–2010 [[Ford Explorer]]/[[Mercury Mountaineer]]
* 2004–2006 [[Ford Courier]]
* 2005–2010 [[Ford Mustang]]
* 2005–2009 [[Land Rover Discovery|Land Rover Discovery 3 / LR3]] The Land Rover version of the cast iron engine block has different motor mount castings/machined surfaces for the motor mounts and the left mount engine knock sensor, plus the engine girdle (upper oil pan) has a threaded hole drilled and tapped for an engine oil temperature sensor.