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Old 09-13-2015, 05:38 PM   #1
Join Date: Jan 2015
Location: Solvang Ca
Posts: 40
Trip to LA County Fair 2hrs traffic then loss of power

From Solvang to Pomona is just 2 1/2 hours. This weekend took 5 hrs. We hit LA traffic and it was stop and go for 2 hrs straight in 100* degree weather. Engine temp was always normal. After almost 2 hrs of traffic it started to sputter at each take off from every stop and after 10 minutes of that I limped off and barely made it into a gas station. At that point it shut off altogether. Got out to fill up with fresh gas I looked at my freshly silver painted exhaust tip and it was now gold in color from extreme heat! Sitting at the station 10 minutes it fired and ran fine so across the street we pulled into Denny's and sat for 30 more minutes. Fired up and ran perfect the rest of the way to fairgrounds without traffic of course. I surmise that the exhaust super heated ( by the new color of the tips ) from lack of air flow under RV and the O2 sensor overheated shutting off the fuel injection ( having to pump the throttle to get it moving, then flooring it to go, all while backfiring out the intake ), once cooled it resumed back to normal. Does anyone know or have experience with this situation? Drove it home today like it was a brand new RV... It only has 17,000 mi on it even though is a 95
Thanks in advance my RV friends!

1995 National RV Dolphin 533 Ford F53 Chassis
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Old 09-13-2015, 06:39 PM   #2
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Join Date: Dec 2014
Location: High up in Arizona
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Heat can do some strange things to vehicles and it is possible things just got too hot. If everything has been operating properly from that point on then there is not much to do at this point. A friend of mine experienced something similar a while back and then never again and it was very hot weather at the time. Oh yes, welcome to our wonderful LA traffic.

2011 Monaco Knight 40PBQ towing a Jeep JK Rubicon Wrangler
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Old 09-13-2015, 07:23 PM   #3
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Posts: 4,510
Look for and get a code reader if post 94 or so unit.

No need for the high dollar ones but they do more.

The cheap ones will read and display codes as well as erase.

If not OBD 2 then more difficult.

If o2 sensor is crapping out then cat converter can be damaged.

Heat can cause ecm to get wonky.

Some engines use multiple water temp sensors.

Had Saturn with 2, one told computer what to put on gage and other told computer engine temp for performance and that one was bad causing ecm to think motor was cold and resulted in too rich and bad converter.

Dash gage worked fine...That one took some time to fix.

Yours may have something getting hot making ecm react poorly.
Tony & Lori
1989 Country Coach Savannah SE
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Old 09-13-2015, 10:33 PM   #4
Join Date: Jan 2015
Location: Solvang Ca
Posts: 40
Wish I could put my finger on it, it is OBD1 and 94 to 97 F53 thankfully didn't come with a cat converter. I do have a reader and I'll see if I can plug it in... Thought at first maybe the ignition was failing and maybe it is. But maybe someone will still chime in that knows. Thank you friends
1995 National RV Dolphin 533 Ford F53 Chassis
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loss of power, power

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