07 Aspen 5.7l Coolant Temps
#11
It's now -15F and although it takes a little longer to warm up the temp gauge still settles in the middle (one small notch below midway point). The heat still blows good once it warms up. I guess that is just how this drive train is. I posted a similar post on Durango forum and got similar answers. This kinda reminds me of the diesel trucks I have driven that took longer to warm up (larger cast iron block with huge radiator) but eventually warmed up.
#12
What type of performance gains do you feel? Does it have higher mpg's with tune. I can barely tell with the MDS is on but I hope mines doesn't develop issues since I like the cruising efficiency it's supposed to provide.
#13
It claims something like 20hp/20tq with the 91 tune. Do I feel it, maybe a little on top end, but not a lot. It's such a brick, hard to tell. The shifting is improved, I know that. What I like most is that MDS is tuned out to avoid the potential issues and that I don't feel it kick on and off all the time. That really bugged me. The MPGs didn't change much for me, as I don't do much long highway driving. However, I did tune out the AFM (GM version of 4cyl shutdown) on both my G8 and Silverado and the MPG difference was less than 1mpg over a few years of driving.
#15
I use the 91 tune, and modify to turn off the MDS 4cyl mode.
#17
You have the Diablo Trinity?
#19
I'm curious as to if Sheradon created a custom tune for you, and used your Diablo to upload it.....or something else.
Let me know which model you have, if you have a pic. If you have the T1000 Trinity, I can help out and kinda navigate you around.
Let me know which model you have, if you have a pic. If you have the T1000 Trinity, I can help out and kinda navigate you around.
#20
I'll look when I get home tonight. I believe Sheradon did do a custom tune for me, for 87 octane. I know they adjusted or shut off MSD. I've never observed it turn on.
Lately it feels like it lost of ton of HP/TRQ and I can't figure out why. Runs fine otherwise. I'm getting close to trading in as it's a nickle/dime thing on this Aspen all the time now at 158,000 miles.
Leaning towards a Dodge Durango I suppose - need to do some research on reliability.
Lately it feels like it lost of ton of HP/TRQ and I can't figure out why. Runs fine otherwise. I'm getting close to trading in as it's a nickle/dime thing on this Aspen all the time now at 158,000 miles.
Leaning towards a Dodge Durango I suppose - need to do some research on reliability.