Some day soon I hope to be full timer and be able to be as helpful to other folks on this site as they have been to me! In the meantime its back to the grindstone tomorrow and try to keep the ole RV running as best we can.
Any ways...any help / ideas on this problem would be much appreciated!
I was heading to Mexico the other day when the check engine light went on. Shortly after that I began to loose power to the point where I had to pull over and let traffic pass. If you've ever traveled Ajo highway west of Tucson you know pulling off the road is not an easy task!
About 30 minutes prior to this occuring I had topped off on fuel (I run 86 octane always). And I had confirmed the fuel cap was on tight.
After I pulled over I turned off the rig and let it sit for about 10 minutes. Re-started and was able to get turned around (another amazing feat of driving) and headed back to Tucson. Check engine light still on but she was running normally. Made it all the way back to Tucson with no problems and normal power levels: solid oil pressure and normal water temp range.
The guys at Tucson La Meas RV were slammed but they were able to get it in to check the codes (my next investment). Turned out to be an O2 sensor code, which they cleared. No time to work on my rig so I took a chance and drove it home (about 100 miles). No problems, ran solid and no check engine light. So the next day I decided to take her on a long run "just to make sure". Bang, about 20 minutes down the road check engine light comes on and loss of power (limp home mode?). Did the same thing as before, pulled over and let it sit for 10 minutes, started up and it drove fine for another hour.
Some back ground that might be related:
A few months ago I was stupid enought to drive through a rather deep "puddle"...more like a small stream a little too fast.
Ended up cracking both exhaust manifolds. I replaced the drivers side manifold in Dec 2011 (that was fun) and have a couple of trips on it with no problems. I replaced the passenger side manifold just last month. It actually seemed fine originally, no exhaust leak or noise until on the way back from a recent trip. Evidently there was a hairline crack that finally totally failed.
And I also replaced the fuel filter and housing with the adapter from Oemy's in Dec 2011.
I've checked all exhaust manifold bolts and bolts from manifold to down pipes and checked the O2 conectors and wiring. Everything seems fine...no exhaust leaks.
I should also mentioned that when the "puddle" incident occured, the drivers manifold was cracked pretty good. Because I was in Mexico when this occured, I did have to drive it for several hours in this condition with the check engine light on the entire time but...it never lost power (never went into limp mode) and oil pressure and temp were solid.
I'm thinking the O2 sensors are fried?
BTW, if anyone needs any info on the Atwood electric level leg system, I am now master certified! Not technically certified but I've dealt with every component on that system and have literally rebuilt my system.
Thanks for the help!