Originally Posted by TaterColo
We left today for our maiden voyage. We made it to Santa Fe and have a great campsite at the KOA just outside of town.
While coming up Raton pass (6-7 degree grade) in 4th gear, 27PSI on turbo the check engine light comes on. The temp gage is in the middle so I'm not worried about overheating to I push on. About a minute later the RED check engine light pops on that says stop. Again the temp gauge is fine. I pull over and the motor turned itself off. I wait a few minutes and re-start the coach. ALL check engine lights are now off. So I start to climb again and the same scenario happens but this time the engine shuts down and I had to coast to the side. I do the same thing, wait, restart all is good. I'm literally 1/2 mile from the summit and the same thing happens again, but this time I had nowhere to pull over and the engine shuts itself down in the middle of the highway. I this time quickly turn the key off and restart - NO check engine light. I crest the summit and all is good. UNTIL the next climb miles down the road.
I did check the coolant level and it is full. I think what is happening is on grades over 3-4% and under full load I have a bad sensor.? every long grade I go over the same story. I timed it and it happens in about a minute once I start climbing and under full load. I crest the hell and the light goes out. The coach runs great on the straight - doing 70-75 even - no check engine lights. Its just the hills.
Any other ideas? This is only day 1 of 7.
I just got back from Camp Freightliner and the folks there seem to be very knowledgeable and should be able tell you what the lights are telling you. They emphasized calling them first, this is the Freightliner Custom Chassis in Gaffney SC number 800-385-4357. Give them a call and I hope you get thinks corrected.