2007 Cruise Control Problems - increasing speed down hill

11 messages, Last post on Jun 23, 2008 at 9:59 AM

You are in the GMC Yukon Forum. Your Hosts are steve_ & tidester

What is this discussion about? GMC Yukon, GMC Yukon Denali, GMC Yukon XL, Performance Mods, Electrical, Truck, SUV

Outline

Messages Page 2 of 2: 1; 2; Prev; Next; Last

#10 of 11 Re: 2007 Denali XL Cruise Control downshifting problem [brewboy] by colonelz Sep 03, 2007 (4:51 pm)
Replying to: brewboy (Aug 31, 2007 8:58 pm) Thanks, I will get with my local GMC dealer who seems to really want to please their customers. Will keep thread updated! Replies to this message: colonelz (Jun 23, 2008 9:59 am)
#11 of 11 Re: 2007 Denali XL Cruise Control downshifting problem [colonelz] by colonelz Jun 23, 2008 (9:59 am)
Replying to: colonelz (Sep 03, 2007 4:51 pm) Took a trip this weekend (about 200 miles) in the 2007 Denali XL and noticed a improved (although not perfect) cruise control performance. Very little downshifting while going up gradual grades, 17.2 mpg with a/c on, traveling about 68-75 mph. Difference??? The only thing I did was increase the tire pressure (20 inch rims) from 34 to 38 psi.

#10 of 11: Re: 2007 Denali XL Cruise Control downshifting problem [brewboy] by colonelz; Sep 03, 2007 (4:51 pm)

Replying to: brewboy (Aug 31, 2007 8:58 pm)

Thanks,
I will get with my local GMC dealer who seems to really want to please their customers. Will keep thread updated!

colonelz (Jun 23, 2008 9:59 am)

#11 of 11: Re: 2007 Denali XL Cruise Control downshifting problem [colonelz] by colonelz; Jun 23, 2008 (9:59 am)

Replying to: colonelz (Sep 03, 2007 4:51 pm)

Took a trip this weekend (about 200 miles) in the 2007 Denali XL and noticed a improved (although not perfect) cruise control performance. Very little downshifting while going up gradual grades, 17.2 mpg with a/c on, traveling about 68-75 mph.

Difference??? The only thing I did was increase the tire pressure (20 inch rims) from 34 to 38 psi.