View Full Version : Need help with cummins fuel mileage
crewchief
11-13-2005, 12:00 AM
My 2001 dodge is getting a average of 13.4 with no trailer. I have adjusted valves and it has a new lift pump. It has a 60 horse chip and cold air intake. Open exhaust and only 33 inch tires. I have no idea why it is dropping so far. This is also without a trailer. If ya dodge guys have any idea let me hear them. O and it only has 120,000 on it and a new tranny with a heavy duty converter.
i have a 2004 dodge diesel to and only get a average of 13mpg
jstarnes
11-13-2005, 08:05 AM
clean your IAT sensor
make sure you dont have a boost leak
Eskimo
11-13-2005, 09:16 AM
Very well could be a failing IP... are you getting high EGT's/low boost?
rokspydr
11-13-2005, 10:55 AM
do you have a fuel pressure guage? how much boost are you making?
Marc
crewchief
11-13-2005, 11:17 AM
Checked and don't have a boost leak. I don't have a fuel gauge but i am not running high egts. How would i check my IAT sensor. Hey starnes this is Mark Bergers spotter Garrett. How ya been doing?
jstarnes
11-13-2005, 01:45 PM
Checked and don't have a boost leak. I don't have a fuel gauge but i am not running high egts. How would i check my IAT sensor. Hey starnes this is Mark Bergers spotter Garrett. How ya been doing?
I thought that was you...
been doing great expecting the first kid in jan....
as far as the Iat gos you just take it out and clean it
http://www.dieseltruckresource.com/dev/showthread.php?t=78966&highlight=IAT+sensor
http://www.dieseltruckresource.com/dev/showthread.php?t=78355&highlight=IAT+sensor
http://www.dieseltruckresource.com/dev/showthread.php?t=73985&highlight=IAT+sensor
http://www.dieseltruckresource.com/dev/showthread.php?t=77697&highlight=IAT+sensor
http://www.dieseltruckresource.com/dev/showthread.php?t=75552&highlight=IAT+sensor
that should get you started on finding out whats wrong
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