How-to: Jeep Engine Cooling—Repairs, Upgrades and
full-length video viewing from the five-channel programming playlists...For
the latest HD video programs, see the 4WD Mechanix Video Network playlists!
Jeep engine has always been a concern. Designed to operate in the harshest 4x4 environments, the original Willys MB
battled North African desert heat, sweltering South Pacific humidity and freezing winters at Northern
4WD vehicles carry forth a demanding off-pavement tradition that dates to the earliest Willys
MB. Rugged trail use, winter chores, high horsepower V-8
conversions, plus a host of trail accessories, raise the Jeep cooling system
Off-pavement rock crawling and summer desert driving are just a few of the
modern challenges. Air conditioning, an automatic transmission, power steering and other engine-driven
accessories—like off-road air compressors and an alternator-powered frequency welder—place a weighty
load on the engine's cooling system.
The Jeep Grand Cherokee and XJ
Cherokee have each struggled with cooling system issues. These problems—and their solutions—get covered
throughout this section of the
Engine swapping has been a popular Jeep mainstay since
the post-WWII era. Here is a one-off early 'Sixties
swap: a 196 Rambler six stuffed into a vintage Jeep
CJ-5! By 1971, AMC's 232 and 258 inline sixes would become Jeep factory
fare. Cooling a higher horsepower engine always requires more radiator capacity and fan air
Jeep 4WDs are often candidates for more horsepower, which
raises the cooling system demands. V-8s into Wranglers, stroker inline
six buildups for the XJ Cherokee or Wrangler, even the stock Grand Cherokee V-8s, each
require more cooling to handle the horsepower and BTU increase.
This section at the magazine is devoted to Jeep cooling issues
and solutions. You will find articles and HD videos covering common problems, how-to repairs, step-by-step upgrades
and tests of Jeep 4WD cooling system improvements.
See the sub-section pages for a variety of articles, HD videos and
how-to on Jeep engine cooling!