CAN 5.3 TOW 6000 LB TRAVEL TRAILER?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

LVJJJ

I'm Awesome
Joined
Nov 15, 2019
Messages
247
Reaction score
292
Location
Blaine, Washington
My 94 Suburban 383 is kind of screwed up even tho only has 24,000 on it. Bent a pushrod, beat up the valve but having trouble finding an intake valve to replace it. So we're looking for another vehicle. A lot of the Burbs or Tahoes have the 5.3. Is that any good for trailer towing?? I think our TT weighs about 5000 lb loaded.
 

Macs Garage

OBS Enthusiast
Joined
Jan 30, 2021
Messages
81
Reaction score
107
Location
Minnesota
Can and should may not be the same answer, but I have pulled a 7000lbs fifth wheel with mine a few times. Tow mode helps but will still run higher rpms and suck gas.
 

Alteca

Truck go vroom
Supporting Member
Joined
Aug 5, 2021
Messages
424
Reaction score
1,457
Location
Alabama
I used to haul a boat about that same weight with an 08 tahoe 5.3 never had any issues. Did drink some gas. What year range are you looking for?
 

Supercharged111

Truly Awesome
Joined
Aug 20, 2015
Messages
13,054
Reaction score
16,255
They should be rated to tow 6000#, but it's going to tow a lot different than that 383. They have no torque, so don't expect to get out of 3rd gear. The thing that bothered me with the wife's Envoy towing was that 2nd gear is barely doing anything at 55mph, so it was never able to fill downshift to it's happy spot and when it did, there wasn't much margin until it got dragged down out of it. This was with a 4000# trailer at 6000-10000ft altitude. Still though, I don't think there was a pass we hit that we didn't pass someone in a newer F150. Truck never got hot or pulled any crap, just didn't have anywhere near the oomph I was used to with my supercharged 350.
 

89RCLB

I'm Awesome...
Supporting Member
Joined
Feb 21, 2017
Messages
1,148
Reaction score
1,028
Location
Falcon, CO
Had a 2015 Tahoe with a 5.3 and 3.73's that did just fine towing a flatbed, steel deck car hauler loaded with an 05 Yukon. Mine was rated for 8600#'s towing.
 

HotWheelsBurban

Gotta have 4 doors..... Rawhide, TOTY 2023!
Joined
Sep 18, 2019
Messages
10,171
Reaction score
18,933
Location
Houston, Texas
My friend who's moving, has a '19 suburban with a 5.3, and he's been pulling a 12' enclosed trailer with it during the move. Many trips to Canyon Lake (near San Antonio/New Braunfels) from Alvin (south of Houston) loaded with models, toys, etc. This is the same trailer he hauled to Austin last month for the Roundup, and a couple weeks ago to the model show and contest. Those boxes are heavy; I've helped with loading, packing up and unloading the trailer several times! He says it hauls fine, and I don't know if he uses tow/haul function. His prior suburban had a 6.0 and he had the transmission replaced at least 3 times (so maybe not!). It hauled the same load and trailers....
I've ridden in it with and without the trailer, and I can tell the load does affect the performance. Not a lot, but it does. He needs my one ton LoL....
 

0xDEADBEEF

Supporting Member
Supporting Member
Joined
May 3, 2021
Messages
2,787
Reaction score
6,981
Location
127.0.0.1
The older ones are kinda pokey for towing especially with the 4 speed. I have towed a couple times with a 5.3 and a 6 speed using tow/haul and I thought it did pretty well, but it was probably closer to 4.5K.
 

95burban

I'm Awesome
Joined
Apr 23, 2022
Messages
1,224
Reaction score
2,790
Location
Tx
One thing I would advise against is towing with a 1/2ton truck with a 6 speed and 3.08 gears. I’ve done it many times and hate it. Gears are your friend.
 

L31MaxExpress

I'm Awesome
Joined
Apr 21, 2018
Messages
6,420
Reaction score
8,673
Location
DFW, TX
I cannot stand the 5.3L even with a 6spd and 3.73s in an unloaded Express van. I test drove one overnight that the last dealership I worked for took on trade and had priced for a steal. It was always shifting around and just plain gutless unless the pedal was on the floor and the engine reving to the moon. I do not think towing would hurt the 5.3L, it would just be gutless doing it. I ended up not buying it because I would have had to put a 6.2L or 408 stroker in it for me to be happy with it. FWIW this was before I built the 383 for my 97.

SBC valve should not be hard to find. What size valve is it?
 
Top