4.0 w/o towing package - JeepForum.com
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post #1 of 30 Old 07-02-2020, 08:58 AM Thread Starter
greenleafAZ
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Talking 4.0 w/o towing package

Hi,

I am looking to drive from AZ to MI and back. I have an '04 Grand Cherokee Laredo with the i6 4.0. It does not have the tow package.

I was planning on adding a hitch at uhaul. I understand the towing capacity is 2000lbs.

What can I have added to allow me to pull something heavier? What is the max weight you'd pull after the addons? And what is the max length you'd pull?

I'm trying to get my small family across the country and back during COVID times. The goal is to have a bathroom and bed with us. If you have other suggestions, I'm open to those as well.

The vehicle is just short of 100k.

Thanks!

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post #2 of 30 Old 07-02-2020, 09:09 AM
azhang253
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Originally Posted by greenleafAZ View Post
Hi,

I am looking to drive from AZ to MI and back. I have an '04 Grand Cherokee Laredo with the i6 4.0. It does not have the tow package.

I was planning on adding a hitch at uhaul. I understand the towing capacity is 2000lbs.

What can I have added to allow me to pull something heavier? What is the max weight you'd pull after the addons? And what is the max length you'd pull?

I'm trying to get my small family across the country and back during COVID times. The goal is to have a bathroom and bed with us. If you have other suggestions, I'm open to those as well.

The vehicle is just short of 100k.

Thanks!
I think your WJ can tow more than 2000 pounds, going by this info here: http://www.wjjeeps.com/trailer.htm
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post #3 of 30 Old 07-02-2020, 01:27 PM
007matman
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Originally Posted by azhang253 View Post
I think your WJ can tow more than 2000 pounds, going by this info here: http://www.wjjeeps.com/trailer.htm
You need to have the tow prep package in order to tow 5000 lbs.

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post #4 of 30 Old 07-02-2020, 01:34 PM
007matman
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You could add a trans cooler, the hitch, and wiring to technically make it work. However, the truck official towing specs are not updated as a result of adding this equipment.

Note the 64 square feet of frontal area spec as well.. that'll be an issue for a lot of cargo trailers.

I ruined my engine pulling in 98 degree heat with a headwind and only 3000lbs and I have the OE tow kit.

Do you have both the mechanical and electric cooling fans?

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post #5 of 30 Old 07-02-2020, 04:36 PM Thread Starter
greenleafAZ
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I'm assuming I do not have both fans based on what I've read on the internet.

I was thinking I'd add the trans cooler. I read the fan might not be as necessary. Are there any other things added with the tow package that I should or could be adding?

I'd prefer not to do damage to this engine. My other '04 grand is about to cross 200k and my 97 wrangler has 265k.....I'd like this one to make it up to those numbers as well!
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post #6 of 30 Old 07-02-2020, 04:51 PM
007matman
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Originally Posted by greenleafAZ View Post
I'm assuming I do not have both fans based on what I've read on the internet.



I was thinking I'd add the trans cooler. I read the fan might not be as necessary. Are there any other things added with the tow package that I should or could be adding?



I'd prefer not to do damage to this engine. My other '04 grand is about to cross 200k and my 97 wrangler has 265k.....I'd like this one to make it up to those numbers as well!
Trans cooler and both fans are critical. The article here doesn't mention it but it was standard with the tow package to have both a thermostatically controlled electric fan and a clutch-driven mechanical fan.

Shoot us a pic of the fans if you don't know what you have.

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post #7 of 30 Old 07-02-2020, 05:38 PM Thread Starter
greenleafAZ
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Hope this helps!
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post #8 of 30 Old 07-02-2020, 06:10 PM Thread Starter
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Also, based on what I've read, is a brake upgrade required?
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post #9 of 30 Old 07-02-2020, 08:48 PM
anotherheep
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If you tow over what the vehicle is rated for, even if it will pull it, you can get yourself into a bad situation if your involved in an accident. Insurance not covering you, accident is your fault regardless of your fault or not....ect. Maybe rent a u-haul and tow your jeep?
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post #10 of 30 Old 07-03-2020, 08:46 AM Thread Starter
greenleafAZ
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If you tow over what the vehicle is rated for, even if it will pull it, you can get yourself into a bad situation if your involved in an accident. Insurance not covering you, accident is your fault regardless of your fault or not....ect. Maybe rent a u-haul and tow your jeep?
Unfortunately, we are less than keen to put our 2 yr old in the front seat of a uhaul. I'm also not sure how safe I'd feel having us all sleeping in the back of it whereever we end up stopping.

This thread is making me consider those 2000 lbs micro trailers.

If I added the trans cooler and fan, upgraded the brakes, does anyone have a length/weight that you would feel good hauling?
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post #11 of 30 Old 07-03-2020, 10:42 AM
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What exactly are you towing? 2000 pounds is nothing. I’ve towed more that that with my car. Don’t all wjs have the trans cooler built in the radiator? I’d say your more that capable to tow 5000. I’d recommend lt tires.. sway control if it’s a travel trailer, electric brakes if possible, and just take it nice and slow.
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post #12 of 30 Old 07-03-2020, 12:54 PM Thread Starter
greenleafAZ
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What exactly are you towing? 2000 pounds is nothing. Iíve towed more that that with my car. Donít all wjs have the trans cooler built in the radiator? Iíd say your more that capable to tow 5000. Iíd recommend lt tires.. sway control if itís a travel trailer, electric brakes if possible, and just take it nice and slow.
My hopes were to pull around an 18-22' RV which would likely end up weighing around 4-5k lbs loaded.

After researching online more, I have reduced those hopes to a 16-20' around 3.5/4k lbs loaded.

I'm starting to be concerned that all I should really pull is actually closer to 2000 lbs. Which only allows for a very small trailer.

The trip is 2000 miles each way and relatively flat most of it, but there are some mountains and its 110 degrees out here. If this was just a 20 mile trip, I would be much less concerned.
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post #13 of 30 Old 07-03-2020, 07:13 PM
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I'm a bit confused by the fans and tow package(s). I have 4.0 with tow package and seem to just have hydraulic fan. Build sheet lists, AHT: Trailer Tow Group. So all tow packages should have both mechanical/hydraulic ? Mine definitely has 3.73s and 7pin/hitch.

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post #14 of 30 Old 07-04-2020, 08:37 AM
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I'm a bit confused by the fans and tow package(s). I have 4.0 with tow package and seem to just have hydraulic fan. Build sheet lists, AHT: Trailer Tow Group. So all tow packages should have both mechanical/hydraulic ? Mine definitely has 3.73s and 7pin/hitch.
All 4.0 with otw package should have a electric fan and a mechanical fan attached to the water pump pulley. The 4.0 did not have the hydraulic fan.
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post #15 of 30 Old 07-04-2020, 03:29 PM
007matman
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Originally Posted by greenleafAZ View Post
My hopes were to pull around an 18-22' RV which would likely end up weighing around 4-5k lbs loaded.



After researching online more, I have reduced those hopes to a 16-20' around 3.5/4k lbs loaded.



I'm starting to be concerned that all I should really pull is actually closer to 2000 lbs. Which only allows for a very small trailer.



The trip is 2000 miles each way and relatively flat most of it, but there are some mountains and its 110 degrees out here. If this was just a 20 mile trip, I would be much less concerned.
Don't even think about an 18-22 or 16-20' RV.

We pulled a pop-up and that was about all I'd do and I had the factory tow kit.

At most, I'd say a 12' pop-up. There is just too much frontal area with any non-pop-up camper.

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