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What did you do to your Cherokee today?

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Old Jul 18, 2013 | 01:54 AM
  #51601  
Prjo734's Avatar
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From: pennsylvania
Year: 1995
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Engine: 4.0 I6
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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
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Old Jul 18, 2013 | 01:59 AM
  #51602  
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From: Vancouver
Year: 1998 and 1988
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Originally Posted by Dief123
Actually letting it idle for about 5 minutes uses less fuel than starting it!
How does that work?
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?
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Old Jul 18, 2013 | 03:11 AM
  #51603  
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From: Bentonville, AR
Year: 1990
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Engine: I6 4.0
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Originally Posted by karl4x4

How does that work?
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?
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.
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Old Jul 18, 2013 | 07:20 AM
  #51604  
salad's Avatar
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From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
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Originally Posted by Dief123
Actually letting it idle for about 5 minutes uses less fuel than starting it!
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.
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Old Jul 18, 2013 | 08:35 AM
  #51605  
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From: Pahrump, NV
Year: 1996
Model: Cherokee
Engine: 4.0L
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Originally Posted by S8NNG8

Not liking the ignorance from some of you. Kids... I guess they can't handle a comment.
Just to let you know, I'm on your side, I pulled off my swaybars, and a leprechaun choked on a unicorn tear. It was crazy!
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Old Jul 18, 2013 | 08:56 AM
  #51606  
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From: Poconos, PA
Year: 1992
Model: Cherokee
Engine: 4.0 I6
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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.
Attached Thumbnails What did you do to your Cherokee today?-image-3163860444.jpg  
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Old Jul 18, 2013 | 10:36 AM
  #51607  
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From: Hahira,Ga
Year: 2001
Model: Cherokee
Engine: 4.0 I6
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Originally Posted by Tom95YJ
I get 15mpg city with 33's and stock gearing. But I am **** about upkeep
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.


Originally Posted by Dief123
Actually letting it idle for about 5 minutes uses less fuel than starting it!
Thats what I thought.

Originally Posted by karl4x4
How does that work?
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?
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.

Originally Posted by rmoore1031
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.
True.

Originally Posted by salad
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.
I trust the battery enough. I just figured Im only out of the car 2minutes to drop off the pizza.
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Old Jul 18, 2013 | 11:24 AM
  #51608  
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From: Wilmington,NC
Year: 1989
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Originally Posted by xLxDIZZYx

I had a 3' skyjacker kit for bout 4-5 yrs I enjoyed the ride had people tell me their surprised on how smooth the ride was. Worked well in the sand. Then it was time to upgrade to 6.5' IRO long arm.
Nice Im considering getting one but havent made up my mind yet
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Old Jul 18, 2013 | 11:33 AM
  #51609  
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Originally Posted by Call-_me-Jordan

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.
Wont eat alot of fuel idling for a few minutes unless your XJ runs pretty rich.
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Old Jul 18, 2013 | 11:57 AM
  #51610  
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From: California
Year: 1990
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Engine: 4.0 i6
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Originally Posted by Slim357

Wont eat alot of fuel idling for a few minutes unless your XJ runs pretty rich.
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.
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Old Jul 18, 2013 | 12:06 PM
  #51611  
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From: Indianapolis
Year: '99 and '91
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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
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Old Jul 18, 2013 | 12:39 PM
  #51612  
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From: Parham, ON
Year: 1999
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Originally Posted by Call-_me-Jordan
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.
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.

Originally Posted by Call-_me-Jordan
I trust the battery enough. I just figured Im only out of the car 2minutes to drop off the pizza.
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.
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Old Jul 18, 2013 | 12:44 PM
  #51613  
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Year: 1989
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Originally Posted by cherokeelaredo'90

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.
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.
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Old Jul 18, 2013 | 01:48 PM
  #51614  
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Year: 1990
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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.
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Old Jul 18, 2013 | 02:02 PM
  #51615  
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Year: 2001
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Engine: 4.0 I6
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Originally Posted by salad
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.
Ill try it. I have always been told from older people around me who know a lot more about cars that if your out for only a minute or two, especially in a diesel to leave it running. Completely different but it fits my story, an Abrams tank uses 8 gallons of fuel to get started. :P so they just let em run.

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.
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