Is there any differences between the two?.... I drive a 1997 Jeep Wrangler Sahara Edition, but it doesn't have the "High Output" Label under the "4.0" emblem. When I bought my Jeep Brand New, I was under the impression that I was buying the "top of the line" Wrangler, so does that mean that my Jeep is a "High Output" Jeep? What are the differences between a Jeep 4.0 Liter "High Output" engine, when compared to a non "High Output"? Please note that any engine specifics would be appreciated when differentiating the engines, as I am very knowledgeable of engines but like everybody else, wants more power out of their Jeep. Thanks
2006-10-03 13:45:15 · 4 answers · asked by Just a guy 2 in Cars & Transportation ➔ Car Makes ➔ Jeep
The '87-'90 engines had Renix electronic multipoint fuel injection, electronic ignition, a single 51mm (2.0") throttle body, and a rather inefficient low port cylinder head.
In 1991 engines received Chrysler sequential MPFI, a larger 60mm throttle body, revised intake and exhaust manifolds, and a more efficient high port cylinder head. As a result, these engines produced 13hp more than their predecessors and gained the "High Output" designation.
In 1996 engines received noise, vibration, and harshness fixes. The blocks were stiffened with extra ribbing, a main bearing brace was added, and lighter cast aluminium pistons were introduced to reduce cold start piston slap. Engines also received revised camshaft timing for more low rev torque.
In 2000 a distributorless coil-on-plug ignition system was installed, intake and exhaust manifolds were revised, and a more efficient water pump was included.
I hope this helps!!
2006-10-03 13:57:45 · answer #1 · answered by Steven B 2 · 3⤊ 0⤋
4.0 High Output Jeep Engine
2016-11-07 00:48:45 · answer #2 · answered by alanna 4 · 0⤊ 0⤋
This Site Might Help You.
RE:
What is the difference between a Jeep that has a 4.0 Liter High Output engine and one with just a 4.0?
Is there any differences between the two?.... I drive a 1997 Jeep Wrangler Sahara Edition, but it doesn't have the "High Output" Label under the "4.0" emblem. When I bought my Jeep Brand New, I was under the impression that I was buying the "top of the line"...
2015-08-08 10:43:47 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Jeeps got the high output designation in 1991. I don't think they put the label on every year.
Check out the web page below.
2006-10-03 13:57:21 · answer #4 · answered by R1volta 6 · 0⤊ 0⤋