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Regular
Posts: 56
| what is the correct tire pressure for a 2002 chavy duramax diesel2500. the tires say 80psi cold. checked the owners manual and it doesn't have anything on the correct pressure. when i checked all four tires today[ 3000 miles on all four, just put on this past july] the front has 50 lbs, and the rear have 65lbs. not pulling anything and the weather is colder now than last july. when i look at the tires they just seem low to me. thanks, okie ann |
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Extreme Veteran
Posts: 420
Location: Florida | Look on the door tag. recomended presure is usually listed front and back. |
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Extreme Veteran
Posts: 406
Location: Minneapolis, MN | When I not dragging the GH trailer around, I run, on the 2001 Ford diesel, 65psi front, 50 rear. In fact I always run the fronts at 65 psi, I vary the rears depending on load. |
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Veteran
Posts: 201
Location: Lincoln, NE | Why the difference between front and back? How does this affect how the truck handles? Someone told me psi should be at maximum when hauling the gooseneck. I leave the tires at 65 psi (maximum). The ride is somewhat choppy if the gooseneck is not hooked up. But I have a car for going places without the trailer so it's not a big issue. |
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Expert
Posts: 5870
 
Location: western PA | When I'm hauling, I run my tires at the max recommended pressure (80 psi) as stated by the TIRE manufacturer. This results in the highest load rating and coolest running. Some duallys state a lower rear tire pressure when the tires are used in pairs. Gard |
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Extreme Veteran
Posts: 304
| I run 80 psig in rears to carry the load, but if I run more than 60 psig in front the truck drives like a boat wandering all over the place. Plate on drivers side door says 65 front 80 rear. 97 Ford F350 Crew Cab Long Bed 7.3l PSD |
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Regular
Posts: 56
| thanks for the input. i did check the label on the inside of the door and it says 55 on one line and 80 on the next two. i understand that the 80 psi is the max load. i checked the tires when they were hot, ran about 30 minutes, will check today before i go anywhere. they just seem a little low to me. okie ann |
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Location: Where the wind comes sweepin' down the plain... | 65 in the fronts. 80 in the rear. I use to run 80 all the way around. Can't remember why I changed that... |
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Expert
Posts: 5870
Location: western PA | Originally written by okie ann on 2009-11-24 7:41 AM thanks for the input. i did check the label on the inside of the door and it says 55 on one line and 80 on the next two. i understand that the 80 psi is the max load. i checked the tires when they were hot, ran about 30 minutes, will check today before i go anywhere. they just seem a little low to me. okie ann The tire pressures should be checked when the tires are "cold" and at the ambient temperature. As they are used, the heat will increase the air pressure. This should not be reduced to reflect the original pressure. Gard |
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Veteran
Posts: 201
Location: Lincoln, NE | That's interesting that you run with the front tires lower than the rear. Is that when you are hauling? I there any downside to doing so?
I'm going to try this cause I have the same problem with the front end of the truck being all over when I run with 65psi in all four tires.
1999 Chevy Silverado 1/2 ton
Good post - I learn something new every day! |
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Veteran
Posts: 229
| okie ann, I have the 2001 version of your truck and pull mainly a variety of GN trailers I do like some of the other posters say. I don't change my fronts much at all. Loaded, I run around 60. Unloaded I run around 50. Even with the GN's most of the pin weight will be taken on the rears, hence the big change in tire presssure from loaded to unloaded. Loaded I run around 75. If you run this high a rear pressure empty, the truck (even a Chevy!) will beat you to death on a rough highway. Unloaded, I run around 50 on the rears. When towing, like some of these other posters, I alway run more in the rears than the front. |
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Location: Where the wind comes sweepin' down the plain... | I maintain the higher psi in the rears on my truck becuase all I use it for is hauling. If not a trailer, then hay, feed, or whatever it may be. |
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correct tire pressure for truck.
