What did you do to your Cherokee today?
Junior Member
Joined: Jul 2013
Posts: 31
Likes: 0
From: pennsylvania
Year: 1995
Model: Cherokee
Engine: 4.0 I6
As far as the sky jacker lift its not to bad but I noticed that every time I go off roading I have to keep an eye on the arms because the bolts it came with tend to come loose so I have to keep tightin them up. O and I added body hardeners also so maybe they give a boost to the lift lol ill take pics tommorow and add them
Senior Member
Joined: May 2013
Posts: 541
Likes: 1
From: Vancouver
Year: 1998 and 1988
Model: Cherokee
Engine: 4.7
In some cities in Europe they did research and it was found that less gas was burned if you turned engine off while waiting at street light than idle. Less gas burned = less pollution. It's enforced quite severely in some cities.
Are they all wrong?
CF Veteran
Joined: Aug 2012
Posts: 1,281
Likes: 2
From: Bentonville, AR
Year: 1990
Model: Cherokee
Engine: I6 4.0
That's why some new cars automatically shut off when at a full stop. I can't remember what it's called but it'll help city MPG.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
A valid point would be if the OP's battery is ****, it might not like being strted so frequently. But it would use VAST quantities less fuel.
CF Veteran

Joined: Jul 2012
Posts: 1,185
Likes: 5
From: Pahrump, NV
Year: 1996
Model: Cherokee
Engine: 4.0L
Member
Joined: Oct 2012
Posts: 209
Likes: 0
From: Poconos, PA
Year: 1992
Model: Cherokee
Engine: 4.0 I6
It's all packed. Just need to roll the tent up and toss it in, put the kayak on top and in going camping for 4 days. May not fit as much stuff as my 8' bed F150 but its my first trip to the woods with the XJ.
Senior Member
Joined: Apr 2013
Posts: 663
Likes: 0
From: Hahira,Ga
Year: 2001
Model: Cherokee
Engine: 4.0 I6
No. Despite the mechanical design being from the '60s, the 4.0L is electronically fuel injected. Mine starts in 1-2 cranks, or within 3 seconds. 5 minutes is quite a lot longer than 3 seconds, even at WOT.
A valid point would be if the OP's battery is ****, it might not like being strted so frequently. But it would use VAST quantities less fuel.
A valid point would be if the OP's battery is ****, it might not like being strted so frequently. But it would use VAST quantities less fuel.
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
The only thing I could think that needs to be done is a new air filter. We pulled the motor cause it had a bad freeze plug. It has new sparkplugs, and when we replaceed the valve cover gasket it looked like a brand new engine, spotless. The check engine light is on but I cant check it cause the lil port isn't powering my scanner.
Thats what I thought.
Depends on the size of the motor. Europe has alot of tiny cars. A v6,i6,and even more so a v8 or diesel you let idle if your only going to be a minute or two. IMO.
True.
I trust the battery enough. I just figured Im only out of the car 2minutes to drop off the pizza.
Senior Member
Joined: Aug 2011
Posts: 604
Likes: 1
From: California
Year: 1990
Model: Cherokee
Engine: 4.0 i6
Think about it, ups and delivery trucks are always shut off when the guy goes to drop off a package. They must do it for a reason and of all people I'm sure they're the ones who have figured out the best ways to save on fuel.
CF Veteran
Joined: Apr 2011
Posts: 4,825
Likes: 2
From: Indianapolis
Year: '99 and '91
Model: Cherokee
When Mythbusters was a more popular show, I joined their forum and kept asking them to do an episode on idling vs. shutting off the engine. They never did it. Bastards.
Anyways, I'm bout to order WJ LCAs, NTK o2 Sensors (up and down), engine and transmission mounts. Then a new 2.5" cat converter. All for my 99
Later I'm going to go work on my 91 and see how much I get done,hopefully a lot fingers crossed. Lol
Anyways, I'm bout to order WJ LCAs, NTK o2 Sensors (up and down), engine and transmission mounts. Then a new 2.5" cat converter. All for my 99
Later I'm going to go work on my 91 and see how much I get done,hopefully a lot fingers crossed. Lol
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Most engines use the same amount of fuel when starting as they would if they idled for 10 or 15 seconds. Don't believe me? See here for actual data that demonstrates this: http://www.iwilltry.org/b/projects/h...g-your-engine/
The reason you let diesels idle is so the turbocharger doesn't crack from heat stress.
Try this then: Turn your Jeep off when you get out. Enjoy the savings.
Last edited by salad; Jul 18, 2013 at 12:42 PM.
CF Veteran
Joined: May 2012
Posts: 3,004
Likes: 1
From: Wilmington,NC
Year: 1989
Model: Cherokee
Engine: 4.0
All the guys around here leave their trucks running. On the new diesels you have to idle them up if you sit for more then 3mins other wise they shut down. Nice safety feature.
Senior Member
Joined: Aug 2011
Posts: 604
Likes: 1
From: California
Year: 1990
Model: Cherokee
Engine: 4.0 i6
Well if we are talking about mpg here I wonder if we should all just shut our jeeps off when we come to stop from now on..
In other news just trying to rack up the miles to officially break in the jeep. I've gone almost 250 miles this week so half way there, then it's on to full synthetic valvoline as far aa motor oil goes.
In other news just trying to rack up the miles to officially break in the jeep. I've gone almost 250 miles this week so half way there, then it's on to full synthetic valvoline as far aa motor oil goes.
Senior Member
Joined: Apr 2013
Posts: 663
Likes: 0
From: Hahira,Ga
Year: 2001
Model: Cherokee
Engine: 4.0 I6
Uhh engine size has nothing to do with it. The amount of fuel used during starting and idling is proportional to the displacement, but only for that engine. You've probably noticed that 4.0Ls use a LOT of fuel, no matter what they're doing. At an an idle 750 RPM, assuming the engine is warm enough to be in closed loop mode, you can expect to burn 2.4 gallons per hour. Assuming you're paying $3.60/gal, that's $8.64 an hour. How much are you getting paid?
Most engines use the same amount of fuel when starting as they would if they idled for 10 or 15 seconds. Don't believe me? See here for actual data that demonstrates this: http://www.iwilltry.org/b/projects/h...g-your-engine/
The reason you let diesels idle is so the turbocharger doesn't crack from heat stress.
Try this then: Turn your Jeep off when you get out. Enjoy the savings.
Most engines use the same amount of fuel when starting as they would if they idled for 10 or 15 seconds. Don't believe me? See here for actual data that demonstrates this: http://www.iwilltry.org/b/projects/h...g-your-engine/
The reason you let diesels idle is so the turbocharger doesn't crack from heat stress.
Try this then: Turn your Jeep off when you get out. Enjoy the savings.
I guess the engine size is more of my assumption. The bigger the motor the more gas it takes to crank, more cylinders, bigger cylinders, etc.
I get paid $5.50 an hour, plus tips. My first week I worked 20 hours, and drove 198 miles. only took my average one night, which was 13.6mpg, so using approximately 14.56 gallons. gas was exactly $3.60 a gallon where I filled up. That comes out to $52.41 in gas. I got $105 in tips for the week. Leaving profit of $52.59 in tips, and $110 in hr wages, comes out to $8.13 an hour. So aint to bad. Plus I went down this road that turned into a dam trail, then mud holes and almost sank my jeep, but hey I got them their pizza.


