Losing power traveling in the mountains in an 07 Essex

[George&Carol]

We just came back from a short trip in the North Carolina mountains - speed dropped to 39 This did not happen with the 03 Essex - anyone else having this problem?

[George&Carol]

We just came back from a short trip in the North Carolina mountains - speed dropped to 39 This did not happen with the 03 Essex - anyone else having this problem?

["007"]

Will short cut to Spartan chassis forum also for some answers.

[Ecker]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by George&Carol:
We just came back from a short trip in the North Carolina mountains - speed dropped to 39 This did not happen with the 03 Essex - anyone else having this problem? </div></BLOCKQUOTE>

Not normal get it into a Cummins Atlantic location in either Columbia, Spartanburg or Charleston or go to Cummins Power South in N Augusta ASAP

[George&Carol]

We set up an appointment in Columbia and they could not find anything wrong. We are headed up to Indiana next week and guess we will see what happens in the mountains this time. May have to have the Cummins guys in Elkhart look at it again.

[Digital Boy]

Did you manually downshift early enough to maintain speed? Did you accelerate early enough to help maintain speed?

I know that on occasion I have been caught off guard and accelerated or downshifted late. The result was a severe bleed off of speed.

[George&Carol]

Will have to check with George to answer your questions. What we did find out that on a 7% grade everyone else is slowing down to that speed as well. So much for the K-2 Chassis saying you will pass others on steep inclines.

[Ecker]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by George&Carol:
Will have to check with George to answer your questions. What we did find out that on a 7% grade everyone else is slowing down to that speed as well. So much for the K-2 Chassis saying you will pass others on steep inclines. </div></BLOCKQUOTE>

One relatively easy way to look at this is to take the actual weight of your 03 and devide it by the engine HP and do same for your 07 and compare the results. This will be one indication of possible reason for the perceived difference in performance.

[Digital Boy]

The "others" refers to: horse drawn carraiges; old people on bicycles; turtles; and slugs.

[tom wilson]

have you checked for wide open throttle?
if it will not go to WOT that may be the problem.

[hoosier1]

I had the same problem in our 2007 MADP. It was time for me to get the oil changed so I had them also put new fuel filters in and what a difference. I can now climb the hills a lot easier. You should also check your water separator for water in in the bowl.

John
2007 MADP 4523

[George&Carol]

Just had all the oil changed and new filters - went back over the same road new Asheville but on that 7% grade it slows down to about 38 MPH -on the rest of the trip in the mountains we did not go below 50 MPH

[Lug_Nut]

George, What speed did you intitially start at the bottom of the grade? Also, were you towing?

Peter

[George&Carol]

We were traveling along at 70 MPH and we just kept getting slower and slower. We are towing an 06 Lincoln Mark LT.

On the 03 Essex we were towing a chevy trail blazer so the coach was lighter and the tow was too. Can't wait to hit the mountains out West.