Question about tires and air pressure for a 2007 3/4 ton Suburban
I recently purchased a 2500 (3/4 ton) Chevy Suburban. It came with new Michelin tires. The truck specs call for the tires to be inflated to 50 psi front and 70 psi back. Darn, you feel every bump or rock on the road. What a rough ride. Any suggestions on fixing this? Changing tires or load range? The truck calls for a load range of E. These tires are as hard as a rock.
Thanks in advance
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Last edited by 4wheeler; 06-18-2011 at 07:36 PM.
Reason: More informative title
With that high of air pressure they will be hard as a rock. Where did you get the pressure specs? If you got them off the side of the tire that is the maximum pressure the tires are rated for. My decal on my Tahoe calls for 32psi but I
keep them at 40psi and they too are pretty hard. I would think that 38 to 40 would be more that adequate for you.What size tires do you have?
Last edited by JimJ; 06-17-2011 at 05:10 PM.
Reason: add question
I tried dropping the air pressure on the rear tires to 50 psi, the low air pressure warning light came on on the dash board and stayed on. I checked the owners manual and I could not see a way to turn that warning light off. If anyone knows how to turn this light out please let me know, I would appreciate it.
the harsh ride is product of the 2500's torsion bars and the E range tires. I'm running 265 duratracs on my 2500. I'm running 54psi front and 66 psi rear. the ride is no worse than the stock 245 transforce tires that came stock
2007 Suburban 2500, leveled, 265 Goodyear pro grade Silent armors Edge CS Tuner Kenwood DNX 6180 Nav. system
Another thing to consider is this. Are your tires the same size as stock? If you have bigger or smaller tires then what is stock(also what is labeled on the door frame) then you want to go off of what it says on the tires. If you inflate you what it says on the tire, then your golden for towing and such. If your just bummin around with less or no load, you could drop the psi but 10-15 psi
2008 Z71 LTZ White Suburban 4X4
2002 Green Ford Explorer E.B.
Yes the tires are stock, the same size as called for on the door panel. And like I said it also says 50 psi front, 71 psi rear. If I lower the press more than 10 psi I get a lower tire pressure warning light on the dash. As far as I know that light stays on until you inflate the tires.