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Old 03-20-2014, 06:41 PM   #1
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2010 27' FB International
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Tough Pulling... Truck not strong enough???

Hello All! I just got my first Airstream and love it! I had to tow it 300 miles to get it home and found it tough making it up the hills. I have seen pictures of people pulling Airstreams with SUV's, but after towing with my truck I am wondering how they do it (or their trailers must be much lighter and smaller than mine). My truck is rated to pull the trailer okay so I thought I would have less issues. I my truck is stock and I haven't modified it, so not sure if there is anything I can do there. I was towing with both the truck and trailer dry, so at the minimums it should have been okay. It was okay in town, but once I got on the highway was where I saw performance issues. I normally run around 1800 - 2000 rpm at highway speeds, but with the trailer I was at 4000 rpm on the flat and then up to 5000 on hills with the engine floored to maintain speed. I would have to slow right down on hills to not top out the engine and would be a bit of a risk on the road with traffic flying by at twice the speed. Any thoughts would be great!

Truck: 2007 Toyota Tundra TRD 4.7L (smaller V8 for the 2007 model)
Max Towing Capacity: 7800 Lbs
Payload: 1400 Lbs

Airstream: 2010 International Sterling 27FB
Hitch Weight: 770 Lbs
Base Weight: 5,824 Lbs
GVWR: 7,600 Lbs

Any advice appreciated
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Old 03-20-2014, 06:50 PM   #2
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The 4.7 is a great engine but a little on the small side to tow your 27. I had a 4.7 in my 4Runner and it pulled my 21 ft hybrid just fine. I now have a 25FB that is actually 5 feet longer and a ton heavier.

I have an '08 Tundra with the 5.7 and tow package. Considering the small cargo capacity on these things I wouldn't want to tow with anything smaller. I have plenty of power and wouldn't hesitate to pull a 27 with it.

Bottom line, a 4.7 is a bit weak, as you have discovered.
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Old 03-20-2014, 06:53 PM   #3
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I tow my 30 with a 5.7 Tundra.
No problems here.
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Old 03-20-2014, 07:00 PM   #4
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yup it's got to be the 4.7 that's killing you.
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Old 03-20-2014, 07:04 PM   #5
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Thanks for the quick replies! I was reading that they upgraded the engines in 2011(?) too so the new 4.6 and 5.7 L are a lot more powerful than the older models like mine. I really don't want to upgrade my truck as I love it, but a little worried about killing the engine pulling the trailer around (looking froward to lots of trips into the mountains with the kids this summer).

@m.hony - What year is yours, the old or new 5.7 L?
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Old 03-20-2014, 07:08 PM   #6
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My truck is a 2007.
See my signature.
I wasn't aware that there had ever been more than one version of the iForce 5.7L V8.
As far as I know the redesigned 2014 has the same engine and transmission as the 2007-2013.
381 horsepower 400 ft. lbs. torque.
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Old 03-20-2014, 07:10 PM   #7
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The new 4.6 is over 300 horsepower and torque.
The new 4.6 is stronger than the 4.7.
As far as I know the 5.7 has been the same since its introduction in the 2007 model year.
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Old 03-20-2014, 07:13 PM   #8
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I am pulling a 30 foot classic with a 2007 Tundra 5.7 l. No problem even in the "hills" of Colorado! Wolf146
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Old 03-20-2014, 07:16 PM   #9
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Get a new 2014 5.7 and keep the old one.
There are some things (quality/fit and finish) that I like better about the first generation (2000-2006) than the newer versions.
I knew a guy who towed a car hauler 430,000 miles with a 2000 4.7.
He had a 28' K-Z travel trailer.
He bought a brand new 2013 and never liked it.
He sold it and bought a 2006 Lucchese edition.
Your engine might hold up to it.
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Old 03-20-2014, 07:17 PM   #10
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Quote:
Originally Posted by wolf146 View Post
I am pulling a 30 foot classic with a 2007 Tundra 5.7 l. No problem even in the "hills" of Colorado! Wolf146

Basically same trailer, same tow vehicle.
At the Canopener rally there were 6 Tundras pulling Airstreams.
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Old 03-20-2014, 07:27 PM   #11
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My 381 horse Tundra feels stronger than anything I have ever driven.
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Old 03-20-2014, 07:39 PM   #12
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Hey Simon

Sorry to hear the trouble you're having with the Tundra. I'm on my second (2007 and now a 2012) and would not hesitate to do it again.

That 4.7 should not have any trouble pulling your trailer. Running 4k on the flats sounds like there is something wrong. Unless you pull at 100mph or stuck in 4th gear??? Maybe a brake dragging?
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Old 03-20-2014, 07:41 PM   #13
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I towed our 25' with a 2006 4.7 Tundra, same engine. It was wasn't strong but capable, so I put XL tires with a same load load rating but smaller diameter and it did well. More stable as well.

Check that you have original tire size on it now, not oversize. Mine would do fine at 2500 rpm on the flat with grade changes, and 3500-4000 on hills.
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Old 03-20-2014, 07:44 PM   #14
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Simon

What speeds were you running on the highway, and what gear were you in on the flats and the hills?

The truck will pull that weight, but not necessarily at the same speeds as you run empty.
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