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Old 02-14-2013, 01:32 AM   #1
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Can you beef up a Pacifica to tow?

My sister-in-law purchased a 2007 Pacifica to tow her 4000 pound trailer. The dealer put a trailer hitch on the car so we thought all was great. Last summer on the way back from camping the transmission went on the car. She took it into a Chrysler dealership which "fixed" the transmission. It did not last 2 hours. Got the car and trailer towed home to Canada. Neither the dealer, Chrysler Canada nor Chrysler USA will help. She like the car, and I was wondering if anyone knew if we could beef it up to handle a 5000 pound trailer. I know we do it all the time with hot rods.
Has anyone any ideas on how to beef it up?
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Old 02-14-2013, 06:22 AM   #2
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The 07 Pacifica has a max towing capacity of 3500 lbs. i'm guessing that fried your trans. Possibly exceeding max weight rating.
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Old 02-14-2013, 06:49 AM   #3
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See this:

http://auto.howstuffworks.com/auto-p...icle/gcwr8.htm

Pacifica has GCWR of 7105. Dry wt of it is 4300. Assuming normal loads in car and trailer you are easily exceeding 8500.
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Old 02-14-2013, 07:13 AM   #4
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She needs to trade it for a Ram.
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Old 02-14-2013, 07:14 AM   #5
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Seems the transmission is the current weak link. I would add a large transmission cooler and switch to synthetic trans fluid. Heat is the enemy.

I would do this to get the car up to it's 3,500 lb tow rating.

To get this car to safely tow 5,000...hummm probably can not be done. Re-enforce the unibody, add larger brakes, larger rear springs, add tow mirrors, add a larger radiator, trans cooler, etc.

That car does not have a good reliability record. If used as a tow vehicle I would expect a lot of other things to break.

I would advise that your sister-in-law either get a bigger tow vehicle or a smaller trailer. There are 4 types of trailers she could tow. All under 3,500 lbs. She could tow pop-ups, teardrop, and most folding trailers, and small hard shell like Casita, or AR-One.
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Old 02-14-2013, 07:30 AM   #6
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Two things: I would bet the hitch weight was way over, and the v-6 Chrysler transmissions are not made for towing.... that heavy of a trailer. There are very few V-6's that can fully handle a 5k trailer....

Right how I pull a 5k (loaded) tt with a Toyota V-8 4-Runner. I like the 4-Runners and would like to buy another, but the new ones from 2010 on up are only offered with a V-6. They are rated at 5k tow cap. where the V-8 is at 7200....I'll most likely settle for a Tundra pick-up with the 5.7 L V-8....This way I'll have more tow capacity for the next tt we might buy.....in the future.
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Old 02-14-2013, 08:02 AM   #7
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The car has to big an engine for towing. It overloafs the tranny and cooks it. Using high reving gears is the only solution. Overdrive is out as it will kill the transmission. I have had more success hauling heavy with 6's then big V8's in same body in the past.
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